Can It Be Saved? Honda's First 4x4 ATV, Dumb Reason Engine Blew.

[@MegaFPVFlyer]

That oil filter is a prime example of my motto as a mechanic: its always something dumb. When things don't add up, always take a step back and start checking the easy things that may or may not be related to the problem at hand. Has saved me countless hours of troubleshooting.

[@gizzyguzzi]

KISS principle.

[@charlesangell_bulmtl]

There is much today that makes this near 'fool proof' as a result

[@brucegissing8591]

Well done buddy I enjoyed watching

[@darthgoggins1747]

I hear you. My sister brings me her Corolla and wants me to put plugs in it because it has a miss. Should be running good hubby changed plugs and wires but he used Bosch and they always messed up. Go to pull the plugs and #3 still had 3/4 's of the old plug boot on it . Had a miss cause it never fired at all.

[@jmabs5096]

Yes sir! Over my years I've noticed such easy fixes most of the time! KISS technique is how I start, engines need spark, fuel, and compression in a perfect manor or its not gona run/run good. Recently my father in law quad would not keep a charge at all, New battery last year, he was getting pissed. I told him did you check the water level of the battery? He looked at me like I was stupid, but told him pop the cover and fill it up, sure enough after water added (distled) it hold a charge and started right up. Looked at me like "really, that was all it was?!" Mind you he knows much more than me but he doesn't follow the kiss princable. Aslo my neighbors lawn mower wouldn't start, asked me to look at it. Immediately I remembered it rained hard last night and she had plastic wrap on gas cap... Needless to say with 5 mintues I found a massive amounts of water throughout the whole system! I could have chased other things but a red flag like no cap should be your first clue! Keep it stupid simple first!

[@jtreg]

Your patience, persistence - never showing off, no loud voices, gimmicks, pure joy of working these tricky engines. A real master. Deservedly successful in YT, keep going Mustie, you teach us so much. Reminds me of a Japanese master of his craft. I will go back to the garage now, totally motivated. Thank you for all your work, bro.

[@eltonchristian5451]

Yy [You have But

[@luisgonzalez8423]

I love yelling and acting a fool when i work on cars makes things less repetitive in my mind were human not robots

[@fredleistiko4101]

1

[@StevenEverett7]

Congratulations Mustie on two counts. One on your win with another new toy😊 and two on possibly your longest video yet! I love these long ones!!!

[@ohiofarmer5918]

So does my wi.... There's a joke in there somewhere

[@StevenEverett7]

@@ohiofarmer5918 🤣🤣🤣

[@keithrayeski3147]

How incredible is that?!?! Toasted engine because someone pulled a total bonehead, putting a filter in backwards!! I’m still blown away!! Nice restoration Mustie!! You are a master!!

[@paulcooper2897]

18:35 ... ya know, in my world... that scoring isnt scoring ... its extra oil storage, just like scraping in a babbitt bearing!!! Lol! Extra long vid! Awesome! Thanks for sharing 🇨🇦

[@sparkingdogg]

I rebuild motosports carburetors as part of my work, I have a small salvage yard and also rebuild carbs. Take the carb off. Hit the carb body, in the choke plunger area (on the exterior of the carb) with a propane/MAPP torch for 15 seconds. That little brass choke plunger will dang near fall out. They get varnished up. ~200 degrees will make the varnish liquid again for a few seconds. Works like a charm. I have removed MANY stuck choke plungers that way. Keep the heat cycle short, and cool the carb body with compressed air, no damage will occur. Pinpoint heat is the answer. Your videos are great : ) I watch them when I am not spinning my own wrenches.

[@virtuestreams2616]

These rigs were all the rage back in the day-I guess I’m getting old because the phrase “It seems like yesterday when…” prefaces many of my comments these days. Well done as always Darin-thank you for sharing the things you do!

[@virtuestreams2616]

@@LegendLength they copied this machine for certain 🤜🤛!

[@michaelfraser5723]

try saying 'old guys used to play with these'

[@rverro8478]

You're not getting old, you're getting older and nothing's wrong with it.

[@unclefranj8460]

Right on!

[@iamgriff]

" I refuse to look it up, I'll struggle with it" Words to live by right there!

[@orionwarren4244]

Just a tip: if you position the air nozzle adjacent to the hole you want to clear rather than directly into it and blow across or 'sideways' from the hole, it causes a 'vacuum' inside the hole, sucking the debris out rather than pushing them further in.

[@1pcfred]

Just a tip: When you're doing that kind of work on a carburetor take it on the bench.

[@alan6832]

Could he have re-hardened the original cam and rockers by heating and dropping them in water, and then just adjusted them properly, used good oil (with zinc?) and lived with somewhat reduced valve lift?

[@robertheinkel6225]

@@alan6832 the cam profile was damaged, so it wouldn’t work very well.

[@flhusa1]

@@alan6832 weld it back up with hard facing rods.

[@TheOcculus]

@@flhusa1 You'd have to grind the profile back onto the cam blank you created. That takes a fairly specialized machine.

[@arciefan]

You have the patience of Job as they say and an excellent mechanic. Amazes me the way you figure things out how they work and what is wrong!

[@jackmundo4043]

Absolutely tremendous. There’s no other like him. Thank you.

[@wullufdude]

I think the main problem you were having with the plastic welding gun was that even on the case it was named a "WEDING" gun. 😅 amazing revival as always!

[@cm5838]

I have the same “weding “ kit, I like it

[@jacknasty6940]

😂 I didn’t even notice that

[@loumencken9644]

Is it called a "weding" gun because it is supposed to wed the two sides of the crack together? I, for one, always cry at wedings.

[@cm5838]

@@loumencken9644 no, just poor Chinese to English translation, they misspelled it on the label

[@caveone-365]

​@@cm5838yup, poor "ENGRISH." 😂 Similar to the newer brand of cheap ass china 'performance' parts "MaxPeedingRods." 🤔😆

[@mrksimm2002]

Seems to run very well with the smaller carb, you're not racing it so it's good to go. Very nice series I like the way you keep going with the diagnosis. Gotta like a guy who doesn't just settle and puts the extra effort into making it run right.

[@coxyofnewp]

Was it also known as that a honda Big Red ?? My uncle had one about 30 ish years back, Had great fun on it as a kid.. it was so nice to hear it running proper at end !! We used to run a rope off back and have a lorry innertube pulled on the snow or super wet grass and see how long the kids could hold on !! grate fun !!

[@michaelblaisdell3946]

Excellent Video! I did an oil change on my Dad's Honda back in 88 or 89 and made the same mistake with the filter and took out the top end of the engine. Thanks for sharing!!!

[@guruoo]

As always, been a pleasure riding shotgun with you, Darren. And thanks for protecting my eyes, most considerate of you.

[@marcelcanuck]

you pretty much did the cam installation as recommended in the manual , they do recommend filling the end cap on the cam with grease although the oil eventually does get in there anyways , great job honing out the cylinder head seats 👍✌

[@stevetealey2804]

fun time in the snow. great fix and a great video well done

[@tobyjugg6202]

Man youwould have been great teaching problem solving in a school or college !!! Thoroughly enjoyable to watch your thought processes and methodology. You, my friend, are a delight to KZbin.

[@mustie1]

thank you

[@andylong5432]

I’m 45 but I wish I was your kid! I love your common sense approach to everything. It really makes me be a better DIY guy on everything! Thanks so much for your videos

[@jeeaaenlourens1434]

really sorted everything out on this great Honda and it can live on for quite some time. Big respect for digging that deep and get it all right. Really enjoyed both videos.

[@ralphedds1]

One thing about him is that is how he does things, I've seen some things he has done and he will say I'm just getting this to run not really getting into it, but when he goes to fix it he goes above and beyond what he has to do, I can't remember the video it was about a tractor that was only used in parades once a year, it was for a town I think he did it up. I'm sure they can still use it.

[@thejavelin7832]

The cam journal galling is/was fairly common on those older Honda engines. The 250/300/350cc TRX/ATC machines all used the same design. Lasts forever is the oil is changed regularly and kept full. Megacycle offers a boring service to enlarge/recondition damaged journals, which then means you can use needle bearings on the camshaft. Good work doing a DIY repair!

[@Pop_Hockenbush]

Such a great teacher , you give us confidence that we are able to take on projects such as this . I’ve done repairs I would have never taken on because of M1 .

[@broo_shs]

hahahah

[@Pop_Hockenbush]

Haha ?

[@broo_shs]

some stuff he do right but there is many stuff what makes real mechanics look and wonder what a f he is doing.

[@gispel7058]

Very important to double check your previous work steps. Too many will look elsewhere right away instead of checking their work. Mustie didn't assume his previous steps were 100%

[@joegerman2061]

Nice to see a fourtrax 350. I grew up riding one on my grandmother's property. It still runs to this day. No speed demon but it is a tank. Will pull anything in 1st gear. Hell of a machine for its day.

[@jailbreakgamin1966]

wow.. im surprized honda made a design that would allow you to install the oil filter in backwards and stave it for oil .. learn something new every day ... good catch

[@christopherderaps]

Never noticed the Cougar before! I bought a '67 in college back in 98 from my landlord. Only had 65,000 miles on it. He had 3 late 60's Cougars and 2 80's Avanti II. Loved that car!

[@dominickserignese8837]

I was thinking the same thing about removing the cam gear bolt.i knew you would figure it out.👍the backwards oil filter was definitely the culprit! It was starving the engine of oil the engine

[@arcflashed]

Seems I always talk to my screen while watching you work on stuff. This has to be my favorite channel.

[@nopeaddict144]

I've dealt with that funky cam gear design on a number of occasions, brings back old memories watching that struggle! As for the polishing of the center bearing journal, I would use aluminum foil pressed into place but first use brake parts cleaner or acetone to degrease that journal, then cut the center hole with a razor blade, then masking tape to hold the foil well below the journal. Tape the bolt holes off. The polishing should be done after using one of those grinding wheels in your kit, as the rag wheel will only polish the grooves, not remove them. I wouldn't remove the high spots all the way, as that will leave too much of a gap after bolting the top back on. The new cam with a small piece of very thin 1200 sand paper wrapped around the center journal can be used to check just how much to remove and from where. I would also use a black permanent marker to paint the journal, before sanding the high spots just enough to find them. Keep in mind this trick will 'over-indicate' at the upper ends of the journal and not go deep enough at the lowest portion. It's just to keep the work parallel to the cam. If I had a junk cam to work with, I'd grind off a pair of flats on the center journal, leaving just a 1/4" to press the sandpaper into place with. That way, I could work the very bottom of the journal without removing anything from the upper ends. A metal lathe makes it possible to make a custom sanding tool to do the same thing, using the outer journals to guide the tool I've discovered the hard way that the oil pump is capable of failing to prime itself, and thus failing to pump oil to the upper end. This on a XL250 that I wound up installing two brand new camshafts & rocker arm sets, before getting it 'right'. For the 2nd attempt, I left the upper oil feed pipe off, no sparkplug. Walked the bike around the front yard while in top gear until I saw oil come out of that pipe

[@alwayssearching1882]

Mustie you are the best and most entertaining fix all guy on the web. Great video.

[@rogerhundley9490]

I remember these when coming out new. I did a lot of off road riding and the older guys having them. The only ones that could afford them. They were beast in the mud!

[@marksaunders2500]

Hi from uk mustie1👍👋 great save on the atv looks brand new and now she rides brand new 👍 and you know top end in trouble when the hat gets turned round 😂 who needs a trail when you can create your own 👍 great going tho good job as always sussing the carb out. Thank you for your time and be safe see you soon👍👋

[@jacksomb1]

Pleased you're going to give the plastic welder a second chance. I got one a just like yours while ago and it's been fine. One tip I could pass on is to put a slight twist on the staple once you've got it 'submerged' in the plastic, makes for a more robust joint. Great video, look forward to joining you on the next one

[@kipirvin3462]

I have that same one without issues too. I also use the twist method!

[@kendibben3179]

Always enjoy your videos and the wide range of projects you do, learn a few tricks from you too, and how you show everything including your thoughts by talking to us and asking stuff like “have I missed anything “ great stuff 👍 ken uk

[@Somebody_in_TX_1960]

If I am not mistaken, that enrichener plunger needs to have spring pressure on it before the plastic nut bottoms out. That is what seals it at the bottom. It is possible that your spacer could be a little too long.

[@cristidavid2630]

You are the only one who uploads long videos full of knowledge!! Keep it going I love what you are doing!

[@johngarnich3653]

Love the video. It doesn’t bother me at all when they are longer. All of the content is worth watching and I get excited every time a new one comes out!!

[@gutshotgriz3936]

He turns his hat around backwards…the sitch is ‘bout to get sketch! Another awesome save. And I really like the longer vids. Keep em comin.

[@chevyv20]

Really cool! Nice! Congratulations on a wonderful restoration! Another one of the incredible reasons I love watching your videos! Too cool! Thanks for taking the time to use your incredible talent, and precious time, to enrich us with this gem of excellence!

[@alistairscott9877]

Mate I love watching you work I have my own lawn mowing business down here in Australia and you have saved me a small fortune keep it up 👍

[@davidstradtman8232]

I've seen other plastic welder in other videos. Better versions mean more cost.😞 There are professional units that are very expensive. As always,pick your pain. Love the content, never miss coffee with Mustie 1 on Sunday morning.

[@markmilostan2493]

You have inspired me not to give up and step away. Come back with a new perspective on a difficult situation and persevere with a positive outcome. NICE !!

[@tundra13]

Sunday morning fix? Check! Haven’t missed one in years and this one was especially fun because of the variety of issues and the fact that it was a Honda. I’m always impressed at how you manage to find the fixes by process of elimination. If I have one regret in life it’s not having taken at least a basic small engine course to help me fix my own stuff with confidence. I can do the simpler stuff and I’ll have to settle with watching the Mustie1s of this world do the rest.

[@robashton5254]

... you're never too old to learn! Go do the small engine repair course.

[@Roca89]

Gotta love old Hondas, I know you have a soft spot for Honda stuff, so glad you got it fixed !

[@thedevilinthecircuit1414]

Nice work as always! A cool way to fix holes in broken (missing) plastic skins is to run some duct tape across the bottom and pour in a layer of A/B epoxy so it's level with the surrounding plastic. It sands smooth and can be painted too.

[@dennisbailey4296]

Great job diagnosing Mustie 1!! Who would have thought that someone would put the Oil filter in the wrong direction!! You said that was the problem immediately!! Super work on this!! All the best from Canada

[@kensherwood4866]

Quite a transformation on the engine, sounds so much healthier. Excellent job. Loved the use of towels to keep the engine clean while honing those top bearings. I wondered if a sheet or two of cling film (ceran wrap to our friends in the US), with bits torn out to expose the surfaces to be worked on might have been an option?

[@rverro8478]

Saran wrap sounds good but it seems to be a little thin. Yeah ! It's Saran not Ceran. If you correct your comment I will delete mine. Just to avoid the grammar-nazi name calling. The idea is good though.

[@jeffreyslaikeu924]

Pop

[@gonzalogarcia9112]

@@rverro8478 how do you avoid the name calling when you just corrected his spelling and told him to change his comment...

[@rverro8478]

@@gonzalogarcia9112 In the world of the internet, a lot of people will take that as an insult. I always appreciate when someone correct me so, I try to help people to become better.

[@lgroschiensalle]

@@rverro8478 “Reprove not a scorner, lest he hate thee: rebuke a wise man, and he will love thee.” (Proverbs 9:8)

[@FTE87]

Was the first quad we had growing up- was bought used, with who knows how many km. It ran every day around the farm, and put through hell. The counter shaft roll pin sheared, and put the balancer out through the case, but we split the engine, fixed the shaft and got the case welded. Was good as new Got stolen, burnt, and we got it back and still ran it. They were slow and rode like a stone boat, but are tough ass machines. And light enough to throw them around when you’re stuck We ran it for a solid 10+ years until us boys grew up and bought our own machines, but it still ran and was sold to another owner. Also, The snap ring on the needle/slide was constantly falling off cuz the carb was so worn out- ( let’s say we got good at swapping the clips ) Damn near bulletproof for old machines

[@whitesapphire5865]

An hour and fifty minutes! Excellent! Now that's a video you can really get your teeth into! There is definitely something not right with the original carb, assuming that it was the original. In almost forty years, it might already have been swapped at least once? It certainly likes the replacement, and for my money, that's where I'd leave it, and put the original away in the stash, toothpick and all (to remind you that it's a dud). I wanted to get my dad one of these when they were new, but my pockets weren't deep enough. Now, I'm in the same boat, I could do with one myself - This video has renewed my interest in these machines. That's made a fantastic machine again, the only disappointment was that you didn't go over the hill with it! Ah, but.... It's too good a machine to be playing ' silly buggers ' on it, and not worth risking your neck. Loved every minute of the video. I hope you can make a few more ' extended features ' like this?!

[@stanleykeith6969]

Great Video Mustie, I always learn a lot from you.

[@JerseyFishing20]

Nothing like enjoying the fruits of your labor!! Love these videos! So informational and I love that you figure out things on your own because there’s may not always be something to fall back on.

[@w96725]

Great video. I really like your 1986 Honda four wheeler. I have one four wheeler which is a 1986 Honda TRX 125. Mine is smaller than yours but has proven to be a very useful machine. I drive it about as much as I drive my truck. It is quite easy to work on and maintain. I like watching video's like this one on 1980's Honda four wheeler's. Thank you for sharing such an enjoyable video with us.

[@aarongrabowski3775]

This man is a mechanical genius. I love watching and learning from him. His channel is certainly my favorite.

[@auggie803]

-He is a real mechanical man that can work on a mo-ped blindfolded. Some mechanic's are like maniacs & will work on your car with a sledge hammer and crowbar. Plus charge you a thousand dollars fur a oil change.

[@lpconserv6074]

Never say die.... Mustie's new motto!!! Best hour and 48 , minutes I have spent in a good while. Keep it up!!

[@thebenchmonkey4117]

Love seeing the vids. If I might add a suggestion, add a slight turn when inserting plastic staples once you get to depth, it will lock them in place. The Astro tool 7600 hot staple gun is pretty good. Has not let me down yet and has a good build quality an comes with some consumables. Also good to add a plastic welder to your arsenal with all the equipment you get. I have the Polyvance 5700HT. It comes with a selection of welding rods and such.

[@M.TTT.]

would you use the stapler and the welder on the same piece?

[@thebenchmonkey4117]

@@M.TTT. It would depend on who you doing the repair for. For a customer, yes, to cover the staples and strengthen the joint. the staples do not provide a complete repair just additional strength. just like adding metal screen to a joint but much stronger.

[@tarstarkusz]

Around the 1:39:00 mark you can see gas spraying out of the carb (and it happened with BOTH carbs). That should not be able to happen, if the timing is right. I watched, slightly earlier in the video the fuel filter and lines get SOAKED in gasoline by the gas spraying out of the carb. Mustie saw all the gas and thought there was a leak. It sprayed out of the front of the carb. The carb should ALWAYS be under vacuum, not pressure.

[@ctvxl]

@@tarstarkusz In my experience, those vacuum slide carbs all do that to some degree. They are just not a very good design IMO. I've seen brand new engines do it. Usually, it is just a very fine mist, and seems to be worse when there is no filter restriction in place for some reason.

[@NJP76]

@@ctvxl I have seen it as well. In my opinion, those vacuum slide carb's are wayyyy too complicated. Nothing wrong with a plain old school Mikuni slider. Simple and reliable.

[@kirbygulbrandsen4507]

Some of your actions on this one, definitely qualify you as a shade tree mechanic. In the end you got the job done. A shade tree mechanic, with all the right tools. I’m listening to the engine with earbuds and I’m hearing a bind, like a bad bearing. It could just be a distortion because of my earbuds. The bottom line is you’re a better mechanic than me, although I’m hoarse from yelling at the camera.

[@richardthomas1743]

Here is a tip , Aluminum foil would work great as the "surgical blanket" in that case. I know that first hand 😉

[@nunyabusiness4651]

Remember how old some of us were when this thing was brand new! Mustie I think you did a great job bringing this old warrior back from the dead,

[@The_HillPeople]

Big sigh of relief when you realized the sprocket had to come back off the camshaft. Near identical to my old XL250 as far as that works. And I bet that screw that does nothing on the tensioner locks down that inner screw. Bolt it in, loosen that bolt and it tensions itself.

[@deere3321]

Now it's ready for another 36 years. This is exactly why I bought a new Honda pioneer a couple of years ago. They just run and run no matter how much they are abused. Great job on the repairs.

[@robdixson196]

I was thinking Honda had an engineering problem with those those cooking top ends. That's more of a design problem. If it is possible to put something together wrong, it WILL be. Good catch!

[@waynekuhn8876]

Just want to say how much i enjoy your videos. Videograohy is top notch, your commentary [or ahould i say thinking out loud] is great, you have the tools, gear and equipment to do what you do your trouble shooting is top notch, condirions dictate course of action taken. Keep up the great work.

[@wallingj68]

Just parked my butt in my recliner with my morning coffee! Perfect timing! Thanks Mustie1!

[@jesus_perez_r]

Same

[@martinmcdoniel4551]

Same as myself

[@wrenchboostboi8994]

Same same

[@MegaTapdog]

oil filter definitely in backwards, i’ve had same issues. thanks for your time in making these fabulous videos.

[@Chudhole]

I bet that would run another ten years. Or more. Cool machine!

[@marksmithson1414]

Darren you look like you were having way to much fun on that thing when you got her running really good. You are a inspiration to everyone not to give up to keep on trying. Thank you Sir.

[@Ajaxaxxess]

I work on powersport equiptment for a living. Fun to watch someone else struggle on these once in awhile.

[@M.TTT.]

older ones, before they had better frame design and such, can be a pita lol

[@Ajaxaxxess]

@@M.TTT. Yea they were a pain to even remove the carb on some.

[@mdouglaswray]

LUCKY SOB with that cam bearing hand-polishing!! I would not have believed it possible. Your feel must be exquisite to get that even close. But it sounds like you nailed it!! Runs like factory now.

[@jamescrook3563]

People were always installing that filter in backwards and it starves the top end of oil, resulting in (common problem) top end damage

[@buildfromsketch8102]

But does it really cut off the oilflow? I mean, yeah not filteryfiltery goin on there, but since the spring was on the lid side, the oil should have been able to bypass the filter without a problem.

[@jamescrook3563]

@@buildfromsketch8102 Almost completely cuts off the flow. What is left is NOT enough to protect the cam and rockers. Used to have a couple of complete assemblies in stock ready to go back when I worked at the dealer

[@buildfromsketch8102]

@@jamescrook3563 Well, I thought that there might be enough room axially. But good if you have first hand experience. Thank you very much :)

[@72mmALKYDRAGGIN]

Just alil comment love sir Frm chi I have NO IDEA 🤷‍♂️ why u don’t hav 1.0m subs yet!!!

[@Jeff_Pendleton]

Good video. Plenty of little things to learn from on this one. It took guts to take sandpaper to the cam journals, but it seems like it was the right thing to do. That little difference in the carburetor didn't too matter much. What are the chances you'd have one of those in your stash? I liked your little plastic welding gun for the 10 minutes it worked. We'll see about the new one!

[@boblamb8421]

I really enjoy your video's. I love to tinker with stuff no one wants when I can get it but here in Mesa Az no one gives anything mechanical away. They will send it to the scrap yard and get nothing instead. I saw two smaller quads on the pile at the yard Wednesday. The plastic and seats are toast here after a summer in the sun with 115 degree temps. But the rest is fine after cleaning the carbs. Wondering what the raised work table is? Harbor freight has one for motor cycles that raise up pretty high. I thought about getting one and widening it. Having a table like you have would be great. You are easy to follow and don't get in a hurry. I am a retired heavy truck mechanic from the old school way of doing things. We fixed it not replace it. I ordered the same plastic gun off Amazon to try. If it messes up it has a money back warranty. Thanks again for the great informative video's.

[@samuraidriver4x4]

I just thought there should be a Mustie1 video soon. That was an unexpected cause for the issue with the cam and rockers.... For ABS plastic repairs get some 3d print ABS fillament and use that combined with a soldering iron.

[@dontblameme6328]

Or.... You can use plastic zip ties, strips of milk jugs, or any HDPE plastic. No need to buy filament.

[@jaylast1958]

It's amazing what you can do just with a wood chisel heated red hot too, I often don't need extra plastic. Melt in some stainless screen too, but that little stapler is a cool idea to line up pieces and strengthen

[@jaylast1958]

I think alot of offroad stuff uses that real oily plastic though- harder to weld than other thermoplastics like car bumpers /abs

[@samuraidriver4x4]

@@dontblameme6328 using other types of plastic doesnt really work that great, you dont get the same bond as you do with using the same plastic. Especially melting in zip ties can be risky because they can release hydrogen cyanide when burned (considering they are most of the time nylon) It sort of works but matching is always the best option. I don't know about the states but here you can get free filament samples that are 20 meters long, that's alot of repairs.

[@flvince]

Loved that you had an old carb laying around AND it worked, save those old parts!!

[@bradames3755]

I've been watching your videos for quite a while now and really like your style of trouble shooting and repair. So many people get frustrated and quit, I like how you stay positive and keep trying. Has it always been this way for you or did you come up with a strategy to keep the plesant mindset when working difficult issues?

[@MyKharli]

He watches `life of brian ` daily .

[@darrellcoy]

Heck yeah! Thanks for only making it a 2 part rebuild. You could have milked it for 3 or 4 and i would still have watched. Thanks for saving "JUNK".. Should make a few bucks off this thing as good as it ran in the snow. Hopefully it isn't the thicker cold oil keeping the cam alive, lol. Glad the bottom end survived that abuse with the oiling issue. Yet another revival from near scrapping. Thanks for all the content!

[@tolbaszy8067]

Superb, as expected! Only question I have is, in what organizational scheme do mirrors go with carburetors? Thanks for another great video!

[@Chr.U.Cas1622]

Dear Tolba S. Hehehe 😁 Exactly what I asked myself instantly too. Anyway: It's always good to have a big stash. Best regards, luck and health.

[@M.TTT.]

Well ya take one look in the mirror and see how old ya are, realize ya don't need that crazy performance carb anymore, its too fast! So ya reach for the stock carb

[@mustie1]

thats how l bought the box at the swap meet,

[@KennyKing315]

Another Keeper Mustie. Good job working your way through the issues, I always enjoy taking the time to view your work!

[@dontblameme6328]

For plastic welding... use an old soldering gun to heat and embed stripped scrap stranded electrical wire. Works really well. Check out 65ford's video on it.

[@b.griffinarmstrong8677]

If it is ABS plastic you can also make an ABS plastic slurry with scrap ABS and acetone and paint it on in layers. I also used painters fiber tape to reinforce the "welded" area. The acetone in the slurry will fuse the slurry to the pieces you are welding together then evaporate and leave hard ABS. Google ABS slurry for more info.

[@markconger8049]

I grew up in the era of these machines. The early 4x4 models had terrible turning radius but at least they had a differential. Fuel issues, I’m guessing mostly due to a weird carb design, were common among 3 wheelers too. Amazing you figured it out.

[@DarkShadow-ug3ym]

Set alarm brew coffee ☕️ and watch mustie vid... Sundays are good

[@francoisr.7069]

Hi Mustie, I use my 40 years old Weller solder gun on plastics with the flat tip and universal black rod and it is perfect. But the staple gun is wonderfull also... if you buy a pro one...but I'm cheap!!!🤣

[@thomasramsay4286]

One of the main reasons for this top end damage is that the fan is controlled by a temp switch that is made to come on at 350 degrees. I did come up with a fix for it that I would be happy to share with anyone who wants it. Yes 350 degree oil in not a good idea.

[@jackdewinter6837]

What's the fix I have the same bike

[@richardthomas1743]

@@jackdewinter6837 A temp switch that comes on at a lower temp.

[@M.TTT.]

@@jackdewinter6837 add some coolant to your oil to help lower the temps, some cars do this by themselves automatically as they age for peak performance! (irony)

[@RDEnduro]

@@M.TTT. ya my old car with a blown headgasket used to mix mine for me! Also.. bad idea you know people can't understand your sarcasm on the internet. Do Not do this :p

[@thomasramsay4286]

@@jackdewinter6837 I disconnected the temperature sensor located on the lower right side of the engine. I then ordered a 67F110 110C thermal switch and mounted it to one of the cooling fins on the head. One of the leads of the 67F110 connects to the wire you removed from the original sensor and the other goes to the ground screw that is used to mount the new sensor. I also used hi temp wire and heat shrink to seal it all up. I located the new sensor on the front top most cooling fin on the head. I hope this helps. Good luck 🤞

[@davewilson7565]

Well done Darren your perseverance paid off👍🏻well done , loved it

[@BPDBRETT]

So, all the damage was caused by oil starvation due to the filter being installed backwards. That was a major bonehead move. Some people should not do their own maintenance.

[@moconnell663]

But a wise engineer would have added a feature to the casting which would make backward insertion impossible. Everything seems obvious when it is clean and under bright lights, but that is rarely the case in normal circumstances.

[@crea8ivjr]

I would say the engine damage yes the carburetor no that was not caused by the lack of oil

[@general5104]

It could have been done by a disgruntled Honda employee, too. ya never know !

[@Dave5843-d9m]

Another reason to use spin-on oil filters.

[@EllaBananas]

Its a suuuuper common mistake. And an easy one to make. My cb has the same filter setup, except its meant to go in the other direction. Same filter, but the inlet is in the engine instead of on the cover like it is here. Now if that doesnt confuse things idk what does. And before you ask, no I haven't done it wrong, its been going for over a thousand miles without issue, so its been done right.

[@craiggerber3740]

Great job mustie. Long videos are always good. Enjoy learning from you. If it has wrong parts you. Fix it. Thankyou for your help.

[@chrissmith513]

You gotta wonder how many of those filters were put in backwards for all these many years and how many motors seized cause of it 🤔🤔🤔

[@goldensubaru22]

I just picked up the same quad but in blue. These 2 videos were awesome to see and incredible knowledge going into a project on the same bike! Thanks again

[@snorman1951]

That would be a design failure on the oil filter. The installation should be obvious or fit only one way. Engineers are supposed to foresee problems like that and make sure they don't happen.

[@donaldlawton7384]

I had the same issues on my 91 250 x.. I had badly worn rockers and chain was stretching. I went alittle further and replaced piston an rings also. She was good as new after.oh I cracked the cam plug apon assembly. I recommend getting a new one. They get brittle with age. Great machines 👍👍

[@muskokamike127]

31:35 this is where plasti gauge comes in. When you torque down the head it will squish and you measure how much it squishes. if it is too wide, you have to shim the rocker cover up. If it squishes not enough, you've got a problem. This is the same issue I had with my F150 when I broke a cam cap: The rocker cover and head are bolted together and then line bored/ground to the right diameter. Mine was the caps which means they aren't interchangeable.

[@1pcfred]

Mustie has the Plastigage mind.

[@martinkennard1669]

Congradulations are in order. That sounds sweet. Good job. Excellent video. Put a piece of rubber band in there with your screwdriver. It grips and fills the slot gap.

[@RCBGarage]

Honda machines their engine cases and covers to the highest tolerances possible. You don’t need to have matched sets. I have videos on a 300ex and a 400 ex showing this on my channel.

[@troyrosenbaugh9935]

You are using the right staples to, best design. Used mine to fix broken tools as well, hand planer that blew apart. Been working for bout a year, good stuff. If guns not heating I use it in the gun with a little torch to the staple then set her in...

[@davidwallace785]

Honda's of that generation all suffered from a top end lubrication issues. I re engined my superdream with an 84 engine and it had an extra oil feed to the top end

[@COIcultist]

Honda often had cam oil feed issues and other cam issues from the CB125 engine right up to the VF debacle that resulted in the superb VFR, so Honda could save its face.

[@chrishartley1210]

Honda weren't the only ones with top end oil feed problems. Pinto engines of the same period also suffered from damaged cams/followers due to lack of oil, fortunately the cam bearings were not affected. Later models and repair kits came with a modified feed pipe.

[@glenncrockett4451]

One of the main issues I see ( Or used to ) is people running the wrong oil, I have a 79 XR250 that I've owned since I was 16 ( now 54) and Honda calls for 20w50 oil, everybody I knew with these bikes ran 10w30 which is a big no no. I use Honda 20w50 in my Engine which isn't even close to stock with no oiling problems. Back in the day there were companies that would machine the heads to run Bearings on the cam, had a few FT500's with this done. Al Baker was the man back then who had all kinds of trick stuff for air cooled Hondas.

[@xresonancex]

I love the valve lapping compound/dremel recondition of the cam journal in the head! Nothing to lose. Awsome!

[@richardthomas1743]

Hello everybody and thumbs UP to Mustie!~!

[@husky500cr]

I like watching your channel because I pick up on the tricks you use and then I use them in my garage.

[@buddyrevell6369]

That Ford econoline pickup needs some love Mustie!

[@muskokamike127]

Mustie is becoming the samcrac of the north: the man of many unfinished projects lol.

[@jimcoope7194]

@@muskokamike127 But at least Mustie does his OWN work! Ha!

[@muskokamike127]

@@jimcoope7194 mumbles: when he does it lol

[@jimmyhagglund8435]

@@muskokamike127 i wonder where his stepmom is 😀

[@muskokamike127]

@@jimmyhagglund8435 hahah Zing!

[@haneyoakie14]

That was worth 2 hours of my time this evening. Cool toy. Thank you for sharing!