How To Change Transmission Fluid - Harley Davidson Softail (Twin-Cam)

This is a step by step instructional video on how to change the transmission fluid on a Harley Davidson Softail. While I’m working on a 2006 Night Train (FXSTBI), this video applies to pretty much all Twin Cam Softail years & models with stock 5-speed & 6-speed transmissions because the drain plug has not changed locations in years. I’m not sure about aftermarket transmissions, however.
This job is fairly straight forward. The hard part is getting the bike up in the air and secured. I’ll cover various tips & tricks to make this job quick, clean & easy. You can have this job done in less then a half hour, even if you take your time.
Check your owners/service manual for the proper fluid level check procedure, fluid capacity and fluid type for your transmission.
Models include (but not limited to) Night Train (FXSTB & FXSTBI), Fat Boy (FLSTF & FLSTFI), Fat Boy Lo (FLSTFB & FLSTFBI), Heritage Series (FLST, FLSTC & FLSTS), Standard (FXST & FXSTI), Cross Bones (FLSTSB & FLSTSBI), Rocker (FXCW & FXCWC), Deuce (FXSTD & FXSTDI), Custom (FXSTC) & Springer (FXSTS & FXSTSI) and probably others that I’ve forgotten about.
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My "'06 Harley Night Train (FXSTBI) Repair & Maintenance" Playlist:
• '06 Harley Night Train...
The information in this video is for educational purposes only. Pet Rock assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use the information in this video at your own risk. Pet Rock recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not Pet Rock.

[@markhanson8366]

Superb! Born educator! A great teacher taught you! Many thanks!

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@HandSolo1]

Great video! Helped a ton being a first time Harley owner and diy-er.. Keep up the good work.

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@peterfoto9823]

Thanks for taking the time to share, very helpful!

[@petrocksgarage]

No problem. Glad to be of service.

[@dusty2good]

Great videos. I just acquired an ‘06 Night Train from my late brother in law who lost a battle with ALS. He bought the bike new & would never sell it. He left it to me, & I wanted to do a full fluid service as the bike did not run for over 2 years. These videos walked me through each step. Thanks for making them

[@petrocksgarage]

Sorry for your families loss. I'm glad my videos helped you out. Thanks for watching & commenting. I appreciate it.

[@bonniegrandstaff398]

Very helpful my husband has 88 springer his next bike he thinks will be a nighttrain

[@petrocksgarage]

@@bonniegrandstaff398 Thats great! Nighttrains are beautiful bikes with great handling, IMO.

[@frase1234]

Great Video Buddy, Cheers From Melbourne Australia (wish you guys would get with the METRIC system)

[@petrocksgarage]

Thanks a lot… We have the metric system... on our imports.

[@taznicholls4898]

What type of oil do you recommend? Some say redline, and others say mobil 1. I put the HD stuff in and dumped it after 1 ride because it was not shifting as well. Then I put lucas gear oil in and it seemed better. . Also what do you recommend for primary? 03 FXDP Honeycomb hideout Thanks

[@petrocksgarage]

What oil to use is a discussion that will never end. There are tons of threads/videos online about this topic for pretty much every make & model vehicle in existence. Use whatever synthetic oil you have available in your area and in your price range. I've never understood how people claim that the oil they use effects the shifting quality. The oil is for the gears, not really the shift fork. Use whatever oil makes you happy. The manufacturer isn't really important. Its the grade oil and that it's synthetic that matters most IMO. I run a good synthetic 75W-90 gear oil in the transmission and a good synthetic 20W-50 in the engine & primary. Good luck.

[@jondaniels7951]

I use Ames oil. Never shifted better. Quite and smooth. Use the 20-50 engine oil also.

[@jerryhubbard4461]

replace the fluid with Amsoil transmission for Harley Big Twin

[@petrocksgarage]

Use whatever oil makes you happy & meets/exceeds the requirements of your transmission/motor.

[@GaryGullicksen]

Hey thanks again I just completed the 3 hole change I used the redline 75/90 for trans and the redline for primary it works great smooth shift in all gears my 2000 softail deuce has small drain on primary cover at back and I filled threw inspection plate less mess thanks again all went smooth thanks again .

[@petrocksgarage]

No problem. Glad to be of service.

[@russellmckenzie3107]

Hey man, love your videos!!! I have an 08 night train and have used your videos to do my maintenance. Do you think you could do a video on things to keep tight over time? Anything with the steering/suspension/axles, etc?

[@petrocksgarage]

Thanks a lot. I'm glad my videos are helping you out. I'll see what I can do about the videos. Typically, if you torque things to spec they won't come loose.

[@russellmckenzie3107]

Makes sense, ok sounds good, I'll look forward to any videos you make in the future, thanks again!!!

[@lcorvette]

Thanks dude! Recently purchased 2005 Heritage - I hate where that transmission plug is!!!! Lol

[@petrocksgarage]

You're welcome. Enjoy the new (to you) ride!

[@GaryGullicksen]

Thanks helped a lot as I have had many harleys but not a Softail Deuce was not sure on trans ,but you had same running gear on your bike your spot on helped a lot .

[@petrocksgarage]

Thanks a lot, I appreciate it. Glad to be of service.

[@johnnybeabad9168]

Best video I've seen, you coverd it all. Keep up the good work.

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@Charlie-x4i]

Super good video brother! Straight forward to say to follow and good visuals . Thanks 💯🤘🏻😎

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@ohm8458]

Nice simple video to follow. I think my 88' Softail is pretty much the same? I'm going to change my primary and trans fluid tomorrow! Thanks for the good video!

[@petrocksgarage]

Thanks a lot. I appreciate it. Good luck!

[@davidperugini5521]

Perfect job!

[@petrocksgarage]

Thanks. I appreciate it.

[@dorispeters1287]

Pet Rock's Garage

[@bobbymay9838]

I have an ‘07 Night Train. I’ve been told fluids should be check in the side stand position. Any insight?

[@petrocksgarage]

Regardless of what procedure you read on the internet, your owners manual is the bible in cases like this. Different years & models have different procedures & capacities. If you don't have the owners manual for your ride, you can get/order one from your local HD dealer or HD website. Hope that helps.

[@andywebb78]

Thanks for putting together this tutorial! I will be putting the knowledge to use today.

[@petrocksgarage]

+Andy Webb, KZbin wouldn't let me reply directly to you until recently. Probably a setting in your account or something. Anyway, thanks a lot I'm glad I could help. Hope the job went well.

[@schiaa7340]

Hardly anybody gives the size of parts and tools in there videos. Just got a 04 deuce and plan on doing the same as this vid asap. Thanks for the extra effort. 👍

[@petrocksgarage]

Thanks a lot. I appreciate it. I'm glad my videos helped you out and enjoy your new (to you) ride!

[@johnrussell3196]

Super help. Thank you

[@petrocksgarage]

Glad to be of service.

[@robertrosson1990]

Just happened across your videos.I have a 05 Soft Tail Deuse.When I bought it I didn't have any maintenance history on the bike.So by watching your videos and getting a user manual for my bike.Iv saved myself a lot of money with your videos.Thanks for sharing.

[@petrocksgarage]

Thanks a lot. I appreciate it. I'm glad my videos have helped you out. Enjoy the new (to you) ride.

[@zippahead]

Thanks, great camera work, you make it look easy. Good job!

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@GypsyLizForbes]

Your exhaust comes right up on the dipstick just like my husbands 2000 FXD Dyna Super Glide. So your tip on how to treat the removal of the dipstick is just what we needed to see. Thank you. I've researched quite a few how to video's on this and yours by far is the best one I've seen. Keep up the Harley how to video's. Lots of us out here need them. Thanks again!

[@petrocksgarage]

Liz Forbes, thats great. I’m glad this video helped you out. Thats my goal. :-) Thanks for watching & commenting. I appreciate it.

[@luketremble9782]

Great video ! I will say though that in colder environments heavy to medium weight gear oil is not recommended due to gear tolerance and warm up times . I’ve had experiences with floating or spinning an outer bearing race due to cold gear oil but I do recommend something thicker than 20w 50 oil. Side note: when running on the track Circuit, I’ll run 10 weight hydraulic fluid in trans for short runs it cuts down on bearing friction and let’s the gears fly but should be drained after each run . Simple trick nocks a 1/2 second of 1/4 mile

[@petrocksgarage]

Thank. I agree re oil. I run 75W-90 in my transmission. No problems after 95k miles.

[@lornesargent8462]

The oil change video and this video was very helpful, you save me $150.00. Thanks & GREAT video.

[@petrocksgarage]

No problem. Glad to be of service. Now pay it forward.

[@caseyernst1836]

Awesome and very descriptive video, I have a 2004 Heritage Softail and it only has 4000 miles on it because it sat in NJ for numerous years. I enjoy doing the maintenance on it myself and your videos make it easier. Thank you.

[@petrocksgarage]

Wow, only 4000 miles? That is barely broken in. I'm glad my videos help you out. Thanks for watching & commenting. I appreciate it.

[@gabetrejo2752]

i love it when someone knows what he's talkin' about.tons of help, thnxamill!!!

[@petrocksgarage]

+gabe trejo, thanks a lot. I appreciate it.

[@michaelwilliams2232]

Thanks for the video getting ready to do this on my Softail Deuce !

[@petrocksgarage]

No problem. Good luck.

[@pierre5131]

I always had dream of one day having my 1 HD! and I succeeded, and I really want to learn to concert HD bikes ! here in my country (BRasil) only has course only for those who already work in automakers understand ? I would do anything to become one of the best hd mechanic! I just need opportunities! I already do a motorcycle mechanity course but it's not HD ! are motorcycles up to 300cc ! but I will run behind to become mechanic so of HD ! I'm passionate about the History of HD ! magnificent beautiful story! I wish you could encinar me the basico, as if it's good in hd ! my bike is a fat boy 103

[@petrocksgarage]

If you know the basics of motorcycle maintenance & repair, like working on 300cc bikes, you will know more than most people do about their Harleys. Beyond that, getting the factory service manual for your year & model bike will go a long way in improving your knowledge. Good luck.

[@mariosfirework]

these vids have been invaluable for helping me maintain my first bike in many years. I don't comment often, but thanks for the effort, man. I appreciate it

[@petrocksgarage]

I'm glad my videos helped you out. Thats why I do them. :-) Thanks for watching & commenting. I appreciate it.

[@johnnytooby9980]

I hate the grammer police via online butbin this instance i must buttin invaluable means of no value. And i do not belive you meant to relay that. I think you meant an extreme value. In is the pronoun which mean not. Im partial to this becuase the courtz trick us with this theu will call our opponent incredible i think they are on their side but in reality they are saying the opponent is a liar.

[@skatejohn6]

I have a 1999 softail standard and cannot find a drain plug between shocks underneath, and it appears there isn't really room for one either. There is a very small screw on the right side cover, down at the bottom, between the cover's mounting bolts that someone told me is the drain. I don't know, seems awfully small for the viscosity of gear oil. Do you know anything about this?

[@petrocksgarage]

I'm not entirely sure. I haven't worked on a that vintage bike in decades and don't have the manuals for them anymore. Is it an EVO or TwinCam? Could your bike have an aftermarket transmission? I vaguely remember a small drain plug on the side of the transmission case, but also remember one on the bottom. But I could be mixing up touring vs softail or different years. Sorry I can't be of more help. Good luck.

[@jcgaliano4126]

Keep these videos coming!... please! I'd like to see one on replacing or exchanging the fork springs suspension system

[@petrocksgarage]

Thanks a lot. Pulling the spring out on a Softail is pretty simple. Get the front end off the ground, remove the nut from the top of the fork, compress the front end to push the spring out the top. Reverse it to re-install. When the bike is off the ground the spring is under little to no pressure on Softails. So you don't have to worry about it shooting up at you. Good luck.

[@lcorvette]

You mentioned you changed the transmission fluid every 15,000 miles, I thought it was every 10,000 we’re supposed to change it?

[@petrocksgarage]

Use whatever interval your owners/service manual says to use. Different years/models have different intervals for some reason. Don't go off what someone said on an internet forum, or KZbin or anything like that. With that said, for my bike the service manual says engine: 5k, primary: 10k & trans 20k. Although I do change the trans every 15k for no real reason other than I find it easier to remember. It isn't better to change it more often. Its kind of a waste of money/oil to change it more than necessary. 10k is definitely way too short of an interval though. Hope that helps.

[@paulegan9073]

Question? Service manual says check the transmission fluid with the bike on the Jiffy stand. Is that a Jiffy Stand you are using??

[@petrocksgarage]

A Jiffy Stand is also known as the Kick Stand. Its the little bar you pull out when you park your bike and lean it over to the left side. Hope that helps.

[@ranjah76]

good video. but I gotta be a technical smartass. the size of a nut or the head of a 3/8 volt is 9/16. ;) I know what you meant. lol

[@petrocksgarage]

Thanks for the info. :-)

[@lynskyrd]

i gotta be a technical smartass but what's a ⅜ volt ?

[@pierre5131]

hello my friend ! I have a fat boy 103 ,I want to learn to mess with it at least basic you can enstill me please ? I'm from brazil state of Rio de Janeiro have you heard? my name is pierre

[@petrocksgarage]

The best source of information to work on your own bike is to buy the Factory Service Manual for your year & model bike from your HD dealer. It will have all the information you could possibly need to do maintenance and repairs. It will pay for itself when you do your first oil change yourself. Good luck.

[@wind-inmy-face7949]

Great video. Very detailed. Thanks for the tip about the gear oil. Trying to do as much work myself. You have a new subscriber! Thanks brother!

[@petrocksgarage]

+Kyle Beeson, thanks a lot. I appreciate it.

[@coryable8256]

I'm glad to hear that you haven't had any problems running a thicker grade of gear lube. Thinking about trying it in my Dyna 2004 88. If you have had any problems please shout out. Thanks

[@petrocksgarage]

No issues. Bike is still running like a top at 90k+ miles.

[@TheShoeman126]

The gear lub I used was 85wt-140wt. Is this too thick? Will it do any harm to the trans?

[@michaelnathan8549]

Thanks for the video, im about to change my fluids and never done a bike before. Can you use a synthetic or no?

[@petrocksgarage]

Yes, you can use synthetic oils. I highly recommend them.

[@michaelnathan8549]

@@petrocksgarage ok i was told to use a syn on primary oil and non syn on transmission oil

[@petrocksgarage]

@@michaelnathan8549, you were mis-informed. Synthetics are perfectly fine in all holes. I've been running full synthetics in all holes in my bike since I bought it new in '06. 95k miles later and no problems. HD even ships their CVO models with their synthetic oils inside. The trans & primary are the same in CVO vs regular. Hope that helps.

[@michaelnathan8549]

@@petrocksgarage ok cool thanks.

[@michaelnathan8549]

@@petrocksgarage how many places do you use oil? Just the 2 right?

[@richardwilkerson5755]

You talked to me like I have never changed the fluid in my Harley. Thanks, lol. You don't just say do this and do that. you explain every step. Great job, thx. Just by doin my own fluid changes I save 100s of dollars. Owning a Harley is like ownin a Ferrari. Its a freaken American motorcycle and everything involved with them is bookoo bucks. Any money I can save along with the knowledge is great. I gotta wobble at 40mph and I am trying to figure out the problem. Harley shop wants 450$ to fix it and they don't even know the cause? With KZbin and sites like this I will have no problem. Thx again.

[@petrocksgarage]

Thanks a lot. I appreciate it. Wobbles at specific speeds typically indicate an unbalanced tire/wheel (maybe a wheel weight came loose?). But it could be other issues too. I'd start by taking the bike (or better yet, and cheaper, just the wheels) to a local shop to rebalance the wheels and then see what happens. It does not need to be an HD dealer. Most Indie shops can balance a tire fairly inexpensively (call ahead of course). I've got videos covering how to easily remove the front & rear tires. They might help you out too. Good luck.

[@shefikjakupi1794]

Great video.

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@mobilemover0001]

I have a 2010 HD FXSTC - six speed. 96ci. I have had my transmission rebuilt by a qualified HD service shop. However, I have noticed that occasionally, shifting from 1st into 2nd is difficult. As if there is some slight binding going on. This only happens between these two gears, 2nd to 3rd to 4th to 5th to 6th is fine. I have taken the bike back to the shop and they graciously re adjusted the shift cable, and the clutch, and it has improved somewhat; but upon occasion, shifting out of 1st to 2nd requires some extra effort. I have a full pull at the clutch lever, so that "feels" comfortable. Anytime I start up the bike, I allow a full minute or more to let the engine/fluids properly warm up while in neutral. I get on, pull in clutch handle, and down shift into 1st, there is a noticable "clunk" at it goes into gear, (as if the idle is too high, but I've been told by HD mechanics that this is "normal" operation for any HD.......) Once in 1st, I ease out the clutch handle, apply a slight throttle, and the bike takes off just fine, right at the end of the rpm for 1st gear, around 15mph or 20mph, I try to shift up, and there is where the binding happens. In another scenerio, I have found out that IF I wait to shift into 2nd at 20 or even 25mph, sometimes it shifts easily. Which is strange enough. So........is it truly something to do with the timing of how I'm shifting? or is it something to do with the rpm's required for HD and this 6spd trans? I used to own several Kawasaki Vulcans, and they were all 5spd. This is my first experience with a 6spd, so, I would appreciate your input and advice on this issue. Live to Ride, Ride to say Wheeeeeeeeeeeeeeeee!!! LoneRider

[@petrocksgarage]

That clunk from Neutral into 1st is normal for Harley transmissions (5 & 6 speeds). If you pull the clutch lever in all the way the RPMs of the motor, or speed of the bike, should not have any impact on your ability to shift. You should be able to go through all of the gears at a dead stop, with maybe just a slight forward/back rocking to get it to change gears. Pulling the clutch lever should completely disconnect the motor from the transmission. Its hard to diagnose your problem from my keyboard. But something does sound off. It could be as simple as needing a clutch & clutch cable adjustment, or a sticking shifter linkage, or as bad as something wrong in the tranny. Double check the clutch adjustment (I have a video on how to do it, its really easy, kzbin.info/www/bejne/r5eQZpKOgZKgg7c). Also check the shifter linkage joints. The dust boots sometimes crack, water gets in and rusts causing it to stick. If the dust boot is broken, shoot some WD-40 or White Lithium Grease in the broken boot and work it in a little and see if that helps (its a temporary fix, btw). If not, then I’d take it back to the shop to have them reproduce the problem and fix it. Good luck...

[@BLACKROSEMF]

Good video , but I Gotta say ,, Yr bike is Filthy !! Have U Ever Polished yr exhaust pipes since U bought it ? UnReal

[@petrocksgarage]

Thanks a lot. I appreciate it. I have never polished my exhaust pipes. I personally hate chrome because it is so high maintenance. I did put a coat of wax on the paint back in '06. Thats about it and it still looks good to me.

[@BLACKROSEMF]

@@petrocksgarage ,,, LOL ... U need a Rusty Rat rod bike bro .. I have a Ironhorse Texas Chopper ,,,, Nothing but Paint , Chrome and Horsepower , and boy does it shine !!

[@petrocksgarage]

@@BLACKROSEMF , I do like Rat-Rods a lot. Lots of personality in them, IMO. However, I don't want to have to get a tetanus shot every time I get on/off the bike. :-)

[@c.kegger5978]

Time spent polishing is lost time ridin’!

[@budman356]

what's a 2004 Heritage Classic take? The dealer said a quart sounds like to much to me.

[@petrocksgarage]

I have no idea. Probably close to what mine takes if it is a 5 speed trans. You should check your owners manual. Don't guess or go off of what sounds good. Alternatively, you could also slowly/gradually add fluid, an ounce at a time, until it hits the correct level on the dip-stick. Unless the dealer looked it up, I doubt they would know off the top of their head the amount of fluid that a 15yr old bike takes. Especially since different models & years take different amounts. Most dealer service techs only remember the specs for the last couple years since that is what they primarily work on. Not 15yr old bikes. Just sayin'...

[@budman356]

@@petrocksgarage ok thanks.

[@texfulton]

Great job with good insights. I added a center stand to my bike so i don't have to jack it.....I have a lift and a jack. Craftsman was a good choice for the jack. When I bought mine it was the same price as the Harbor Freight which is not as good.

[@petrocksgarage]

I wish I had a lift. That would be nice, but sadly I don't have the space in my garage nor justify the cost. I bought the Craftsman jack sometime in '02-'03 and it is still running strong.

[@REDMAN298]

You covered the dipstick not being screwed in correctly. There`s another video up that doesn`t mention it. That is a big deal. Thanks.

[@petrocksgarage]

Glad to be of service.

[@rm5608]

I was just dropping my 04 night train with 6k mil to have this done but I can do it thanks for your video and experience explaining mine shifts hard will it change after this

[@petrocksgarage]

An '04 with only 6k miles? That thing is barely even broken in yet. Transmission fluid doesn't really effect how a transmission shifts. A clutch & primary chain adjustment and shifter linkage inspection would likely have a more positive effect. Good luck.

[@robpeters993]

Good job. Nice clear camera shots! I'm about to do all three holes on my 2005 softail. I have a dyna, and an ultra, and neither is the same as the softail. Thanks.

[@petrocksgarage]

Thanks a lot. I appreciate it. I wish I had the $ for more then one bike. :-)

[@plop961]

Not a six spead? I thought all 1584 cc models were

[@petrocksgarage]

Nope. Six speeds didn't come standard on Softails until '07. My bike is an '06. Also, it was '88ci (1450cc) stock and I upgraded it to a 95ci (1550cc). HD didn't come out with the 96ci (1584cc) until '07.

[@Arthurdankarelli]

Finding conflicting info on whether you should warm the bike up before checking the tranny fluid level or checking it cold. Insight?

[@petrocksgarage]

Different years have different requirements. Use the procedure outlined in your owners manual for your year/model bike. Good luck.

[@tom12974]

do u have a video for the primary fluid change

[@petrocksgarage]

Sorry, I don't (yet). Its a pretty simple process though. Pull off the derby cover, then remove the drain plug. When all the fluid has drained out, put the plug back in, fill up through the derby hole with oil (different years & models have different amounts of fluid, so check your owners manual) and put the derby cover back on. IMS, it's 80 inch/lbs of torque. While you are in there it would be a good time to adjust the clutch. I have a video on how to do that too. Good luck.

[@haroldobrien4322]

When changing either the transmission fluid or primary case fluid do you think it better to do it warm, like when doing engine oil? BTW, I've 2001 Night Train and really appreciate these video., .. so Thanks.

[@petrocksgarage]

With the tranny, it doesn't really matter because it is basically a sealed box with gears inside. So you can drain it hot, warm or cold. You'll just have to wait longer for it to drain fully when cold. Thanks for watching & commenting. I appreciate it.

[@redflint7651]

I just bought a 05 fatboy and was wondering would it hurt anything if I switched to gear oil in the transmission if that’s not what has been used in it? It has 25k miles

[@petrocksgarage]

No, it will be fine at any milage.

[@redflint7651]

Pet Rock's Garage ok, even if he did not put gear oil before?

[@petrocksgarage]

@@redflint7651 yup. Switching to gear oil should not cause any problems.

[@redflint7651]

Pet Rock's Garage I just bought it yesterday (my first bike) and I checked the motor oil level and it’s way over filled... I was gonna take a turkey bayster and suck some out... I’m hoping the others are not over filled... he said he changed it every 1k miles or so ... when I texted him n asked why it was over filled he didn’t act like he knew .

[@petrocksgarage]

​@@redflint7651, make sure you follow the instructions in the owners manual for checking fluid levels. The procedure is different for different models & years. Some have the bike on the kick stand and some don't. So before sucking oil out, make sure to you are checking the fluid correctly. Changing the oil every 1k miles is a complete waste of time, oil & money. Factory is every 5k. With that said, whenever you buy a new (to you) vehicle, assume that all the fluids have never been changed and that the previous owner was an idiot. I always recommend changing all the fluids & adjusting the clutch after purchase. That way you have a bike in a known maintenance state.

[@homersimpzoid9510]

didnt know there was not a filter stilll i would use cloth

[@petrocksgarage]

To have a filter a pump would be needed to push fluid through the filter.. Harleys don't have trans fluid pumps. So no trans filter. Re paper vs cloth, use whatever makes you happy. Even if there was a filter, you would have to dump chunks of paper towel, not just fibers, to clog a filter. So I wouldn't worry about it.

[@wilfredstinissen8309]

Hello friend. Thanks a lot for your videos!!! Wilfred (Arnhem Netherlands)

[@petrocksgarage]

No problem. Glad to be of service.

[@homersimpzoid9510]

dont use papper towel pappper fibers will clog filter

[@petrocksgarage]

What would you propose instead? Either way, there isn't a transmission filter. So I'm not sure what you are referring to.

[@catdog4723]

the drain plug is not made of aluminum. its steel

[@petrocksgarage]

Ok. Thanks.

[@skylerbarrick4372]

You said you use gear oil and I have read through the comments and might have missed it but what kind and grade was that again?

[@petrocksgarage]

I mention it around 8:25

[@rikherlaar]

You correctly mention that the stick is getting a bit damaged overtime - seemingly all transmission oil dipsticks since the Evo's are getting somewhat damaged by the clutch cable that runs too close to the actual shaft of the stick for my taste. I agree that this won't damage the gears and cogs but I'm slightly paranoid so I chopped the shaft off with an angle grinder and "smoothened" it with sandpaper (it's real soft, almost like butter). To regularly check the level I have a spare dipstick at hand. Apparently some aftermarket stuff like Baker are not suffering from being chafed so easily...but I rather have nothing obstructing the clutch cable at all. Just my 2 lousy euro cents.

[@petrocksgarage]

The clutch cable doesn’t come close to the dip-stick on my bike. The dipstick is actually angled away from the clutch cable. The chrome coming off is typically due to a poor chrome job by the manufacturer. But if your’s was rubbing, hacking it off and keeping a spare around to actually check the level is a good idea. Thanks for watching & sharing.

[@rikherlaar]

Ah , they possibly changed the angle later on then - I ride a 2001 model and had Evo's before that (not evolved yet to anything more recent ;-) Thanks for your series...very useful indeed

[@-MrRichBiker1967]

ps- pretty smooth there, ol friend , not giving away the BRAND of (gear) tranny fluid! I caught that!! smart-very smart!

[@petrocksgarage]

:-) There are so many brands and everyone wanting to know which one is the 'best', or even thinking there is a 'best'. Trying to avoid the discussion/argument. Which oil is the 'best' threads tend to be a never ending on some online forums.

[@-MrRichBiker1967]

Pet Rock's Garage Gottcha!

[@davidjoaquin141]

Hey Pet Rock, thanks for this. I used your video to take off the rear wheel last week and re-install it on my brothers 2007 HD soft tail Custom.. All good. Yesterday he asked me if we can change the tranny oil and I said sure and with your video should be a piece of cake. Now I ride a Kawasaki Vaquero 1700 and it only uses 1 type of oil for lubrication. For the life of me, I can't figure out why HD use 3 different types. I'm not knocking HD but I don't get it and of course I do all the work on my bro's HD.

[@petrocksgarage]

Thanks a lot. I'm glad my videos are helping you out. Thanks for watching & commenting. I appreciate it. I'm not sure what you mean by three types of oil. The owners & service manual lists 20W-50 for Engine, Primary & Trans. Some people choose to use thicker or thinner oils in the engine, or gear oil in the tranny or oils like ATF in the primary. It's a personal choice. I choose to use 20W-50 in the engine & primary and 75W-90 in the trans.

[@davidjoaquin141]

@@petrocksgarage Well I will tell him this. But he did goto HD and thats what they told him I trust you more. I'll mention the 75W-90 in the tranny. I like that to and it makes sense. Thank you!!

[@petrocksgarage]

@@davidjoaquin141, thanks. He should trust his owners manual the most. Good luck!

[@SteveRobReviews]

Good tips , well done. Thanks

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@wulfclaw4921]

Only one that saw that covered this worth a damn ! thanks! Wulfy

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@sirjhonson8218]

I keep boxes of O Rings on hand.

[@petrocksgarage]

Not a bad idea. I have a bag of them that are running low.

[@690ADV]

that was very enjoyable to watch, keep making them

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@AsIAm1969]

Newby questions....I have a 93 fatboy. So routine checks are gonna be adding trans fluid there like in the video, brake fluid and motor oil. Right?

[@petrocksgarage]

Yeah, routine maintenance is engine oil, trans oil, primary oil, fork oil, brake fluid, clutch adjustment, primary chain adjustment (if you don't have an auto-adjuster installed), and steering head stem nut adjustment. There is more and they have different milage intervals that these maintenance items need to be performed. I would advise getting the factory service manual for your year/model bike. It will have all the maintenance stuff listed with milage intervals & instructions on how to do it. It will pay for itself in the first service. Good luck.

[@AsIAm1969]

Pet Rock's Garage how do I check fork oil? Thanks for the reply ^

[@petrocksgarage]

You don't check it. You replace it every X miles. X depends on your year/model bike.

[@NickF6.6]

Great videos man! I've got the same exact bike and fixing to do all the fluids myself I seen you have the oil change could you make a video of changing the primary oil?

[@petrocksgarage]

Thanks a lot. I actually recorded a primary oil change video a couple months ago but haven't gotten around to editing it. I have a backlog of about 20 videos recorded by not edited yet. With work I have a limited amount of free time. :-( But its not that hard of a job. You pull the derby cover (T-27 torx head bit), drain the oil out the bottom of the primary. replace the drain plug o-ring if it is damaged. Put the drain plug back in (I don't remember the torque spec off hand, but just snug it down). Fill the primary with the exact amount & type of oil specified in your owners/services manual. Different years & models have different amounts, so go by whats in your manual. Then put the derby cover back on (replace the gasket if it is damaged). Tighten in a star pattern. IMS, its about 80 in/lbs of torque. don't over tighten or you'll strip the bolts. Good luck...

[@NickF6.6]

Pet Rock's Garage awesome sounds good I'll be watching close to see when it's up!

[@Dachamp2001]

I run red line trans oil with shok proof but that's me

[@petrocksgarage]

Use whatever oil meets or exceeds the trans fluid requirements in your owners or service manual. That is all that really matters.

[@anthonysorrenti3661]

What size is the dip stick Allen

[@petrocksgarage]

Its a 3/8" allen head.

[@kenmartinez8247]

Right to tight, left to loosen oil bolt? kinda tight won't come off.

[@petrocksgarage]

Yes. Righty tightie, lefty loosey. The plug should not be that tight. Make sure you are playing with the correct bolt. There is more then one at the bottom of the motor, one of which is red locktighted into place so it will only turn with heat.

[@SuperJohnny1966]

Awesome thank you I'm new to changing oils on Harleys i have a 97 super glide

[@petrocksgarage]

No problem. I'm glad my videos are helping you out. Good luck.

[@MrSjohnson73]

Nice video! Thanks for showing an easy way to do this!!

[@petrocksgarage]

Harley Rider forever, no problem. Glad to help.

[@jim5pie]

You make one of the easiest to follow step by step videos I've seen.

[@petrocksgarage]

jim5pie, thanks a lot. I appreciate it.

[@jbhobbyist9372]

Does your bike sit for any long period of time?

[@petrocksgarage]

Not really, no. Maybe a week or two.

[@jbhobbyist9372]

I Live in Ohio. I put maybe 1500 miles on my 09 Softail every year. Then it sits in a garage, starting it and running once a month till spring. Is it necessary to change all three oils every year.

[@petrocksgarage]

Sorry for the late reply. No, it is not necessary in my opinion. Oil doesn't really age like other fluids like brake fluid or gas. I'd go purely off of milage. Hope that helps.

[@mrvalleycheer]

Awesome video! Thank you! Will be doing this this upcoming Saturday.

[@petrocksgarage]

Thanks a lot. I'm glad my video helped you out. Good luck.

[@Elkins24]

Thanks for the detailed video. Was wondering if you have a video to change the Primary fluid on a H.D. Softail? Thanks As I have a 2006 Softail Deuce so mine is pretty much like yours... Bill

[@petrocksgarage]

Yeah, your motor is the same as mine. I don’t have a primary fluid change video yet, but I will as soon as mine is due. Its pretty simple drain & fill operation.

[@Elkins24]

Seems like I have done that b/4 but when filling back up you have to watch the level as there isn't a dip stick. Seems like you fill it to the bottom of a gear but don't quote me on this. And the transmission was really fun getting between the shocks. Hope you have a nice holiday weekend. I am in the middle of replacing my rocker box gaskets as had leaks. I don't have a video camera or would have made a video on that subject.

[@petrocksgarage]

Its a lot simpler then that. Your owners manual has a spec for how much fluid goes into the primary. Just put that much in and no more. Different years have different specs. Good luck...

[@Elkins24]

Pet Rock's Garage Thanks will have to look it back up.

[@Elkins24]

Also I have the 2006 softail deuce. And I think our bikes are pretty similar.

[@Johnblazefrmdabx]

Do you still have the 06' train?

[@petrocksgarage]

Yup. Still going strong.

[@Johnblazefrmdabx]

@@petrocksgarage post some more videos please, every chance you get!!! I subscribed and I also have a 06' train

[@petrocksgarage]

@@Johnblazefrmdabx I've got a bunch of videos recorded, but very little time to edit them with work, school & kids. Takes about 3hrs per video to edit. I'm working on it. :-)

[@jaskillz1]

Thank you bruthaman...helpful videos

[@petrocksgarage]

No problem. Glad to be of service.

[@-MrRichBiker1967]

Hey Whats crackin PR? Everything ok here! its Rich with the 2005 ,15 anniv, fatboy. I'm the ass that couldn't get the slack outta my clutch(Barnett) cable, when I did the clutch adjustment, on your other video.( the Barnett and Harley cable are totally diff) I just changed my trans. and primary fluids with a brand called "REDLINE". You ever hear of it? its been 2 weeks I have it in...and what a difference. smoother shifting, through all gears-finding neutral now, is a breeze! gotta let me know what you think! ttys, I hope, ty-Richie.

[@petrocksgarage]

Yes, I've heard of Redline, but I've never used it. I've been using Amsoil in my bike pretty much since I bought it new. Use whatever oil brand you want, its your ride. No such thing as 'the best' oil. Glad to hear that changing your fluids smoothed things out for you and you got your clutch cable figured out. Enjoy the ride!

[@-MrRichBiker1967]

I hear ya man. You can go crazy on the net today, its an endless discussion!!!! I did want to try Amsoil, but , the guy that worked on my bike(was selling it) once said" your bike doesn't have any racing work done to it,,,you don't need it" is that true?...I walked outta there with my head spinning..saying"wtf" just happened! lol

[@petrocksgarage]

I'm not sure what your mechanic meant. Amsoil is just synthetic fluid like Mobile1 or HD's Syn-3. I've been running Amsoil in my bike since 500miles (85k now) and have no problems. I don't have any racing stuff on my bike either other then the 95" Big Bore kit.

[@-MrRichBiker1967]

Pet Rock's Garage Hi..i meant a mechanic, that adjusted my clutch,(SAID THAT STUPID SHIT). I have a 95'' ci also- with twin cams-noisy fucker!!! sounds like loose lifters, hitting the top valve cover(tap-tap-tap-tap). I have 17,000 miles on a 05, 15 anniv, fatboy! I just changed my primary and tranny with REDLINE(tranny-75w-90)(primary fluid.heavy duty red), last week. I let it drain over night, then put 24 oz back in(tranny)(and 26 oz of primary), now I see a little drip, under primary drain plug. I put a new o-ring on the drain plug, and keeped the same diaphragm derby cover as you have-its fine-no rips/tares. when I feel up behind, the main shaft drive pully, its alittle wet??? what do you think, Pet rock?? I'm stumbling over here, bro?? the tranny breather hose-is dry-yikes!!!

[@petrocksgarage]

I seriously doubt the leak is due to the oil you are using. Synthetics don't cause leaks. But they often have detergents in it that 'clean out' existing leaks that were plugged with dirt. The leak you describe is pretty common. It is likely one of the seals for the shaft that goes between the primary & transmission. If you use different oils for the primary & tranny then you can tell which one by the oil that is coming out. Its a PITA to fix because you have to disassemble the entire Primary assembly to get to the seal. Good luck.

[@pualanic4023]

Great info. And video so thanks for that! Getting ready to change the fluids on my bike.

[@petrocksgarage]

Thanks a lot. I appreciate it. Good luck on your bike.

[@TJShot41]

Thank you, anything on the NT is appreciated. Be safe

[@petrocksgarage]

+TJShot41, thanks.

[@judgefirst8923]

Good video & clear steps. Thanks

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@shaneallen1660]

I need to know how to do this on my 1983 Honda interceptor 750

[@petrocksgarage]

Shane Allen, sorry, I don't have access to that bike. So I can't help you there. Maybe go online and pick up the service manual for that year/model bike? Or check for an online forum for that type of bike? Good luck...

[@lawnboyfromhell]

I think the Honda uses one oil in the whole thing, so when you change the engine oil it changes it all?

[@eazyfbaby816]

I have a 1980 iron head that been setting for about 8 years and it's not locked up what do I do to get it going

[@petrocksgarage]

+Eric Fleischman, removing all the old gas in the tank and draining the carburetor float bowl and refilling the tank with fresh gas would be a good start. If it was stored with gas still in it then that gas is pretty much garbage and hopefully it didn't turn into varnish. If it still has the battery from eight years ago it is likely dead and a new one will be needed. I'd also squirt a little bit of oil into each cylinder to lubricate the cylinder walls & piston rings. Other then that, try and start it up and see what happens. It will likely take some time for the new fuel to get into the carb, but only run the starter for about 10 seconds at a time, giving some time in-between, otherwise you could overheat/burn out the starter or flood the motor. Good luck...

[@eazyfbaby816]

I bought a new battery and cleaned out the gas tank It is my dad's old bike and I'm trying to get it restored and going before he passes away so he can see it I appreciate the information if I have anymore questions is it OK to reply

[@petrocksgarage]

Good luck and ask away. I'm not a iron head expert, but those motors are so simple compared to a TwinCam you should be able to follow standard diagnostic procedures to get it running again. Like make sure it has fuel, air & spark to get it started.

[@vh8765]

Eric Fleischman, Inquiring minds want to know. Did you ever get the bike going before your dad’s passing?

[@fanjet111]

Excellent video! very well done thanks

[@petrocksgarage]

+J Cac, thanks a lot. I appreciate it.

[@SusiFroggyPorter]

Thanks. Great video.

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@Codenbaugh]

The oring pops out at 4 ft lbs

[@petrocksgarage]

You mean the drain plug o-ring? It's hard to say from here why it would pop out at 4 ft/lbs. My guess would be that the o-ring is the wrong size or thickness. Or there is something in the hole pushing the o-ring out. Good luck.

[@Codenbaugh]

Turns out that amazon and auto zone orings are trash. Replaced the drain plug and it is good to go​@petrocksgarage

[@petrocksgarage]

Thats great! I'm glad you got it sorted out.

[@sonat2008]

Great video! You explain it real good, do you have one for the primary?

[@petrocksgarage]

Thanks a lot. No I don’t have one for the Primary yet. But its a pretty simple drain & fill procedure. Just drain it out the drain plug on the bottom of the primary and refill through the access panel or derby cover whole. Check your owners manual for how many oz of fluid to put in. Different years & different models have different fill amounts. So make sure to get the correct amount for your year & model bike. Good luck...

[@steelbender58]

Good video

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@Dilsnic79]

Best video I've seen! Keep up the good work!

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@homersimpzoid9510]

thanks for video

[@petrocksgarage]

No problem.

[@Bobby-ns7gn]

Thank you, very good information.

[@petrocksgarage]

Robert Sepulveda thanks alot i appreciate it.

[@benbaker2235]

What type of transmission fluid is best to use?

[@petrocksgarage]

+Ben Baker, as I mentioned in the video (around 8:28) you’ll get a different answer depending on who you ask. The service manual says to use 20W-50 oil, like you put in the motor. I run 75W-90 gear oil in my transmission. Its up to you which one you choose and which manufacturer.

[@benbaker2235]

Oh ok I must have missed that thank you so much your video really helped!

[@petrocksgarage]

+Ben Baker, no problem.

[@Hammerhead971]

Great video thank you!

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@richardpeterman1349]

Thank You very informative.

[@petrocksgarage]

Richard Peterman, no problem. Thanks a lot.

[@omaralvarez7787]

how often do i have to change the oil?

[@petrocksgarage]

Omar Alvarez, change the engine/tranny/primary oil based on the interval set in your owners manual. Different years have different intervals. But I change my tranny fluid every 15k miles.

[@petrocksgarage]

Dan Thirnbeck, I change my engine oil every 5k too. That is the recommended interval for my bike from the Factory Service Manual & Owners Manual.

[@MegaGuitman]

thanks for the excellent video

[@petrocksgarage]

Thanks a lot. I appreciate it.

[@GCaquatics]

Nice ill be doing this in the next couple weeks, now for the primary fluid???

[@petrocksgarage]

Thanks and good luck. I have a primary fluid video recorded, but I haven't had time to edit & post it yet. Hopefully soon.

[@GCaquatics]

Cool, i mean there are many videos about it, i just kinda like your style :D what size engine came on your ride?

[@petrocksgarage]

It came stock with an 88" motor, but it now has a 95" motor.

[@GCaquatics]

I had purchased an 06 fxst back in 06 and it came with a i believe a 96" and a 6 speed. i thought yours would have came with teh same, wonder why they didn't?

[@petrocksgarage]

The 96" motors didn't come out until '07. Same with the stock 6-speed.

[@paulcarlisle2388]

Thanks for the awesome video!

[@petrocksgarage]

No problem. Thanks for watching & commenting. I appreciate it.

[@wildrodriguez4698]

Great video, 👍🏼

[@petrocksgarage]

Thanks a lot. I appreciate it.