TTR125 hard cold start problem FIXED !!

[@shawnjoiner1821]

10 yrs later and your're still helping people. Worked like a charm on the first start! Thank you for saving my ttr that was in storage waiting for my son to grow.

[@TepcoCycleRepair]

Awesome, they're great bikes he'll love it!!

[@mstachura76]

How the hell did we used to fix things without KZbin. Thank you my man

[@stevebustamente3859]

Just applied this fix to my daughters bike. Took 15 minutes to complete. Bike started right up after 2 yrs of cleaning jets and giving up. Perfect now.

[@robertnorris1151]

This absolutely fixed my hard cold start problem. When I bought my 2005 it had been sitting so long the gas was varnished. I cleaned the carb twice but missed the area described in this video. My bike starts cold now with the choke like it should. Thank you.

[@bradrackers3353]

I can't believe how well this thing runs now. Great tip, I'm glad I found this video.

[@bentonreese8841]

Sorry to be so offtopic but does any of you know a tool to get back into an Instagram account? I was stupid lost the password. I would love any tips you can give me!

[@rockybrennan7152]

@Benton Reese instablaster ;)

[@bentonreese8841]

@Rocky Brennan thanks for your reply. I found the site thru google and im trying it out atm. Takes a while so I will reply here later when my account password hopefully is recovered.

[@bentonreese8841]

@Rocky Brennan it did the trick and I now got access to my account again. I am so happy:D Thank you so much, you saved my account :D

[@rockybrennan7152]

@Benton Reese Happy to help :)

[@littleshopofhorrors]

You’re a genius, following your tips I’ve fixed my Scorpa TYS 175F that has the same engine. 5 minutes, just blown the bowl with compressed air and the bike now starts immediately as I was used! Thank you for sharing! Sim - Italy

[@TepcoCycleRepair]

Mastro SIM Awesome glad I could help, thanks for watching!

[@dinosaurpete9014]

this video helped me get my 09 ttr 230 up and running after I rebuilt the carb still didn't start after I watched this video cleaned same hole he did started right up no problems

[@TepcoCycleRepair]

Giancarlos Del Hoyo Awesome! Yes it's a commonly overlooked part of the carb. Thanks for watching!

[@tracyjudson8451]

Thank you, Thank you, Thank you. Owned my 2005 ttr 125 since day one. Had starting problems for the last several years. Never knew about this fix until I came across your video. Worked PERFECTLY!

[@TepcoCycleRepair]

@@tracyjudson8451 That is great to hear, Thanks for posting!

[@blakehall2256]

"Kicked it so much you got holes in your shoes" yes sir🤦‍♂️

[@tonycarreon4518]

I just purchased a ttr125 that had sat with gas for over 3years. Cleaned the carb out several times and couldn't get it to start until I stumbled on your video. I didn't notice the hole in the float bowl that you showed. I tried your suggestion but was unsuccessful, Until... I used a guitar string and pushed it all the way through. The drill bit technique doesn't bend thus not cleaning the hole all the way. Thanks a bunch! Bike starts immediately and idles like a champ!

[@TepcoCycleRepair]

Good to hear, the hole is actually shapped like an L so straight in from the top then if carb cleaner doesnt flow through clean the hole from the bottom of the bowl side with a wire or similar. Glad I got you in the right direction.

[@roberttravis3850]

First off...Hit that "SUBSCRIDED" button! My son has a 2003 TTR125 and always had trouble cold starting his bike! He was ready to do a carb clean or replacement then we watched your video! He did the repairs himself on the choke circuit and the bike starts right up for the first time since he has owned it! Great video and content, so easy a twelve year old can do it! Very grateful to have found your page!!!

[@TepcoCycleRepair]

Awesome!! Glad I could help. Thanks for watching!

[@ckornutiak]

Holy crap, years and cans of ether. My daughter's bike hasn't been run in 2 years. I clean up the carb and it wouldn't start. I saw this video, drilled that out and it fired up in 3 kicks. Again, after sitting for 2 years. Thanks for taking the time to share your knowledge. Absolutely spot on. FWIW I used a common 1/64th bit and it worked fine.

[@TepcoCycleRepair]

Sweet, enjoy! Good to know the 1/64th worked fine they are easier to find.

[@BaptisteVallet-z6f]

Your video saved my life… Impossible to start my daughter’s TTR… It was driving me nuts. The micro drill didn’t make it but I used a small pipe with my carb cleaner spray to blow from the small hole. It starts from the second kick. Merci beaucoup !

[@TepcoCycleRepair]

Awesome!

[@delsannicolas116]

thanks for the video man . I didn't have the micro bits so I had to use a fishing hook. cleaned it up and put it back together and work like a charm.

[@TepcoCycleRepair]

Del San Nicolas Good job, never thought of using a fishing hook but why not.

[@dtank77]

This totally worked for my 06 ttr 230. I just found some small stranded wire laying around and took a strand of that to use for cleaning out that pick up hole and some carb cleaner. also cleaned out the gas tank well to get all the old reserve gas out. put it al back together and it fired up first thing with the choke on and then ran fine after cutting the choke off. finally no more starting fluid!! thanks again!

[@claybirchfield2746]

You are so awesome. I bought a 2012 TT-R 230 that had the same cold start problem- previous owner used starting fluid to get it started. Kept me up at night worrying how I could get it fixed. I found your video yesterday, watched it twice, followed your instructions today, and problem solved. Thanks so much.

[@TepcoCycleRepair]

Awesome, glad I could help. Ride on!

[@CannonFoddeification]

This guy right here. I suspected the choke circuit even before my first unsuccessful "cleanup" of the carb on a ttr 125. Stupid Yamaha just wouldn't start no matter. Damn things starts perfect now. Goes to show it's the simple things that are easy to overlook. vids like this and people like you are what make the internet great. Thanks!

[@TepcoCycleRepair]

Dustin B Awesome, glad I could help!

[@timevans7960]

This fix works like magic, you won't believe it ! I struggled for years with hard starting and a idling issue !!! I used a 1-64 drill bit to drill out the orfice that worked great, you can find that bit size at any hardware store, I also changed the pilot jet in the carb from a stock #15 to a #17. I did not change the standard main jet. FYI, there is a tiny slow idle adjustment screw on the side of the carb and a mixture screw on the " underside of the carb", ( its very hard to get to, its on the engine side of the carb. Thanks tepco1 !!!

[@TepcoCycleRepair]

Great, glad it worked out!

[@6rareroses]

Thanks a million I had just recently bought my son a 125 it ran when I bought it but after a couple days of sitting I tried starting it and NO GO. So I found this video and did exactly what you did and 1st kick after I was done and we were in business again thank you for posting this video

[@TepcoCycleRepair]

Awesome glad it worked. Ride on!

[@LakesideWeldingJerry]

I was about to drop my kids' bike off at the shop for $90 per hour. I have the drill set to do this, so thank you so much for posting!

[@matthewcronin4245]

Tepco, Your video while it didn't solve my problem directly pointed me in the right direction. My issue wasn't the port itself being plugged but a dead spider in the air vent hose at the "T" on the choke side of the carb. I pulled the hoses and when I blew through the one with the 45 degree cut on it there was resistance. The spider was so petrified that I had to press a drill bit through the hole. After clearing the hose the bike now runs like new. Immediately starts when stone cold good high idle on the choke and warms up and is ready to ride in a few minutes.Like new. I have had the problem for over a year and had taken the carb apart a few times. Thanks for getting me thinking...it was a huge help! Matt

[@donovandsouza756]

Thank you random you tube dude. Just did this on wife's bike in like 20 min. We have been struggling with it starting for a year or so. Usually just kick holes in our boots till it starts. This got it starting on 2nd kick. Thank you so much!

[@TepcoCycleRepair]

No, thank you random KZbin watcher! Glad I could help you out, now get new boots and go riding! Thanks for watching!

[@chrismckay6396]

I had been struggling with this issue for quite some time also. Was going through starting fluid like crazy and wearing holes in my boots kick starting. I cleaned with a small drill bit and also a very small wire with some carb cleaner. Blew it out with the air compressor, re-installed and the bike started first kick. Just wanted to say thanks for the tip. The bike is running and starting great now.

[@TepcoCycleRepair]

Awesome!

[@natecrone020]

Thank you so much for this video. It saved me so much time looking for things. Mine wouldnt start at all cold but ran fine hot. The choke didnt seem like it did anything. I tried adjusting the cable for the choke with no luck. That's when I started searching and found your video. Followed it and cleaned out the jet with a needle and carb cleaner. Fired up first try and had a marked difference with choke on so I knew it was working. Thanks so much!

[@TepcoCycleRepair]

Awesome! Thanks for watching.

[@TepcoCycleRepair]

@Don, #2&#4 may be related. If the bike is leaking fuel from the overflow there is only one way it can and that's from the float not cutting the fuel off when it should. This can be caused from the float being stuck or the float valve and seat are old/dry and not sealing, or your float height is way off. If this is the case it will run rich and hard to tune. Make sure you can see light through your pilot jet, also make sure your mixture screw has the spring washer then oring or it won't seal and will suck air. GL lmk how it goes, valve adjustments are easy on those and if you can strip carbs down you can do a valve adjustment. I have 2 TTR125'S so I'm sure I'll be doing a valve adjustment vid sometime.

[@snowking16]

Thanks for this! Had to bust out the guitar strings to clean out this port (didn't have a drill bit on hand that's this small) on my TTR230 and it solved the hard cold start issue. Your vid was the guidance I needed.

[@TepcoCycleRepair]

Yes a guitar string is another great tool for tiny jets and this choke hole. Glad it worked out!

[@wheelie63]

ha, i use guitar strings too .................wb

[@FayeWeekly]

Well...here's the verdict...you rock!! She purrs like a kitten and has NEVER started this well before. 3rd kick and she fired up like a beast and for the first time since I've owned her she didn't stall. I'm convinced the choke wasn't working at all before. Now you can actually tell you're using it lol. I don't even know how to thank you. You've had the only advice that really worked!

[@chrisphilpott1932]

Dude thank you! My TTR has been driving me crazy, 20 kicks on a good day to make it run. I ordered the exact Snap-On kit you showed (free shipping from Snap-On btw folks) and gave it a shot. The bike is sitting in an 18 degree Fahrenheit ambient and despite it being so cold it fired on only the 3rd kick!!!! I am beyond stoked.

[@MikeJohnson-xj2tf]

Thank you for taking the time to post this. I just bought this bike for my wife and as you opened with; boots tore up and battery dead. Great video and excellent pacing... Thank you for taking the time to post. Very much appreciated.

[@MrStriper22]

Worked so good I don't even have to choke the bike to start it now. I set the needle down and adjusted the idle air screw out and it's perfect Thanks for making this video you saved me a bunch of $$.

[@TepcoCycleRepair]

Striper 22 Awesome glad I could help!

[@brandtlowe4066]

Perfect! I just went out to the shop and saved my sons Christmas surprise of a new to him TTR125LE. Your trick solved the problem. Thank you so much!

[@B.Arnold-22964]

Just want to say you saved me a major headache,,I soaked my carb in Chem-Dip 24 hours even with the float bowl,Then air pressured blew it out..still same thing wouldnt start,But then I seen your idea and noticed soon as I blew carb clener in that float bowl hole it wasnt coming out down there at bottom..So sprayed it 4 ,5 times more down in there even though my long pin would go down in there it needed something more which is carb cleaner and high pressure air..Sure enough it fires on first kick now!..So just want to say Thanks for the help! B.

[@matthewrainey7467]

I just got a ttr125 it was a pain to start. I picked up a micro drillset at hobby lobby for 20 bucks, it took me less then 10 mins. And the bike started first kick after sitting for a week and idled for the first time without bumping the throttle. Thanks for the video and info this fix works great

[@TepcoCycleRepair]

Awesome, glad I could help!

[@cameronsmith3430]

I found this very helpful. I found the exact kit from snap on tools for about 26 bucks and I've done the task. waiting till morning to see how effective it's been .. good luck.. I had no luck on ebay or Amazon searching for this particular brand however there are others but lots of complaints about the pen vise itself. or just expensive. this kit was a good deal for what I needed it for..took all of about 10 minutes.

[@paulr5452]

Thank you so much. I've been chasing ghosts in all directions trying to troubleshoot this exact problem. Ended up using some wire to clean this out but never would have thought to check it after a full rebuild with no change in behavior.

[@stevenmatthews6853]

Your a star Thankyou for this video I’ve had the carb off 10 times but your method sorted it never would of thought of it

[@danielcoleman2817]

I very much appreciate you putting together this video. My son's 2004 TTR125 (starter bike) that he has had for about 3 months has this problem. He thinks it is broken but I informed him of this issue and have the same micro drill kit that you have so I am going to get it taken care of. Rejetted a few months back and should have done this while in there but I didn't have the micro drill kit yet! Great explanation of the issue! Bless you!

[@TepcoCycleRepair]

Great, you should be able yo do it the same way I did in the video on the bike. Just a few minute job. GL

[@Pmediculous]

Thank you for the video. It fixed my impossible to start bike. You rock.

[@rchrd1bolt]

I saw a lot of oxidation around the choke plunger and spring when I took mine apart I finally tugged it a bit and it came free .When i pulled the carb I disassemble it all the way down as far as you could soaked it and cleaned it throughly ,and Shazam it started first kick . Enjoyed the video and thanks for posting.

[@TepcoCycleRepair]

Great, yea put some grease on the spring and oil on the plunger. Check it periodically and repeat. Ride on!!

[@absquidchief]

excellent video. Easy to follow and relate to. Problems with my sons bike are 1: Hard to start as in your video, (I'll give your fix a shot this weekend) and 2: Won't idle at anytime, no matter if it's hot or cold and #3: The choke has to beld up or it'll slide back down. #4: Fuel often comes out the overflow tube, sometimes even when the bike is running. I'm planning on replacing the the choke cable to fix #3. #2 & #4 have me stumped. Carb has been cleaned numerous times and new jets installed. Adjustments have been made on the idle adjust screw and no luck. Time for you to make a video showing how to do a valve adjustment?

[@murraykriner9425]

Just a quirky little detail contributed to its not starting as easy as it must. Bravo for the hack.

[@geexskill]

My tys 125 was a pain in the ass to start. I have done the hole cleaning and now it crank easily! thanks a lot!

[@TepcoCycleRepair]

Giraud Joël Glad I could help!

[@tompeadon]

Spot on! Exactly the problem and the fix! Thank you. The bike is still cold natured but starts right up now, a short warm-up and we're off! Thanks again

[@woodly1069]

Excellent video man! Thanks for the tip! My XT is driving me crazy and I think this is what's going on

[@dtank77]

i bought a 06 ttr230 from an older guy and had just been starting it with starter fluid for years. it seems to have the same problem when its cold, as the one your demonstrating. im going to look at the bowl and check this out and maybe it will work. Great video thanks!!

[@TepcoCycleRepair]

Yep should be the same. GL.

[@adamminor7026]

I watched this used A small wire guitar string And it fixed my brothers TTr230 thank u for posting this u maid a 13 year olds weekend!! I rebulid the carb 2 times Can I guess I just never noticed this little thing clogged up

[@TepcoCycleRepair]

adam minor exactly why I made this video, many people miss it. Thanks for watching, glad I could help!

[@lisapatterson3573]

Son's bike was hard to get started every time he went to ride, His dad did what you said and now it starts first kick every time, Thanks

[@TepcoCycleRepair]

Great glad it worked out!

[@knivesandroses]

Well after drilling the fixed jet in the bowl it would start but it made the carburation extremely rich, with the 'choke' off. It was a fail on our 2002 ttr125. I realized that the enrichment circuit was sucking the gas up through the float bowl - through the 'closed' choke valve and into the intake of the engine. Suspect that our machine being 20 years old had some wear that was not noticed on the original repair in the video. After a period of thought, I figured that I could drop in a small o-ring into the bottom of the choke bore, ensuring that there was no leakage. The standard spring pushes the piston closed against the o-ring. Wow back to normal. It started in 10° F weather in 2 kicks. Had to get the idle mixture turned back out to about 1.75turns. Carburates normal throughout the range. So with the addition of an o-ring the drill mod works great. I bet a lot of TTR125s have this problem with fuel being sucked from the closed choke.

[@TepcoCycleRepair]

I'm assuming you made sure it was closing all the way? Sounds like the O-ring helped but didn't fix the issue. The rubber at the bottom of the plunger probably gets dried out and leaks like you described. And if it's not closing all the way that's another issue. It shouldn't be sucking any fuel through that port with the choke/enricher off.

[@joshfoster539]

you the man!!!! I've tried everything, and finally after doing this, it fired second kick!!!!! thank you!!

[@TepcoCycleRepair]

Josh Foster Awesome, ride on!!

[@LightningMotorsportsAZ]

same as all other comments, this fixed the issue - thanks a lot for posting this video!

[@biiam4412]

thank you so much for making this video. I didn't know that hole even existed n have been pulling my hair out trying different things from other vids n suggestions. You're the man!

[@TepcoCycleRepair]

Awesome, sometimes it's the simple things. Ride on!

[@andrewdevenish9904]

Thanks fixed my TTR125 in no time at all. I just used a fine wire, but had to push quite hard.

[@larry1263]

Wow, started on 2nd kick after I did this, this bike has never started this easily and now runs great. I've been tearing the carb apart and cleaning constantly without much luck,

[@TepcoCycleRepair]

Awesome, its a commonly overlooked/unknown issue. Glad I could help!

[@stayrook6123]

Thanks. Since this bike has been new, it hasn't started easily. Quickly fixed it. Thanks!

[@jogardner5022]

Tried this and it worked.Bike started after 2nd kick.Fantastic.Thanks

[@ascentimagesllc134]

Thanks - I've just gone through my carb twice trying to fix this type of issue

[@TepcoCycleRepair]

Iron Ore Aerial Perfect, hope this did it! Thanks for watching!

[@MikeJohnson-xj2tf]

OK, finally found the micro drill bit, completed the work this morning ~10 minutes. Worked perfect. The bike started immediately and ran flawlessly. What would I have done before you tube??

[@Jimmyallanmedia]

I used a guitar string on mine and fixed the problem of hard starting immediately. Thanks for the video!

[@TepcoCycleRepair]

Perfect! Guitar strings work good because they are thin and strong enough. Glad it helped, ride on!

[@christerril8395]

Thank you so much! Awesome video, worked exactly as you said! She's a runner!!!

[@TepcoCycleRepair]

Great! Thanks for watching!

[@Sms68]

I actually cleaned the bottom end of the Carb about a month ago and it was running great. It is my Sons and it doesn't get ridden a lot. I restored this whole Bike top to bottom. Either it got dirt in it again from sitting or I am thinking it is the starter relay which is the only thing I did not replace yet... It is only 8.00 so I got it anyway. My other 2 Sons ride CRF 70 and these things can sit for months and kick right over.

[@lyndahargis2495]

This is a really great tip. Cant wait to try it. Any suggestions as to what the jet settings are if you have a FMF powercore 4 exhaust on a 2000 TTR 125?

[@kevinkunkel8670]

7 years later and this video is still great

[@TepcoCycleRepair]

Thanks man. I'm currently working on a Yamaha Kodiak carb video. Carb fixes never stop coming! Thanks for watching!

[@FayeWeekly]

Of all the videos about the TTR I've watched, yours is the 1st one to explain and diagnose exactly what's happening with mine. I'll have to try your method in the AM and see if I can get her to fire up. I knew I had to do something with the carb but none of the others mentions what you mention. Is there a reason you don't use carb cleaner or sea foam to free it up? I'll have to let you know how it goes. Many thanks and wish me luck.

[@Steve-XTC67]

Many Thanks, Had the same issue with Suzuki DRZ 125, running "sweet as a nut" now! Thanks again.

[@ljccoppola2818]

Dude! Thank u! Was going crazy took the carb apart and cleaned it and changed every jet and piece was going crazy y it was taking forever to start when cold and dying when I gave it gas. But when hot it started and ran fine. Trying this tn! Hope it works

[@robertpenner4432]

Very good info, thanks. I assume that these might be the issue I am having with my 125 vino, very hard to start.

[@anthonywhitney634]

Hey there, thanks for the video! Just checking the drill bit size you used? Was that inches or mm? I'm in Australia so everything is converted to metric!

[@TepcoCycleRepair]

It's.0225" or .5715mm but double check my conversion math.

[@sourkraut6248]

The reason I asked the below question is a 750 v twin front carburator seems to be having a similiar problem. I took it out and cleaned it up and it ran great for about a week and then it acts like it isn't getting enough fuel. The exhaust is warm on that cyl...... and will fry your fingers on the other. Compression's are great. Spark is good. It's up on the stand again now and ready for the carb to come out.......

[@TepcoCycleRepair]

@Cameron Jacobsen It is indeed a 2007 with 2012 plastic, it bolts right on.

[@deepbludude4697]

Yep, Good job so did you drill metal out or just clean varnish out? nice little shop, Im working on a 2009 XT250 total pain in the ass to cold start it

[@TepcoCycleRepair]

No metal, just corrosion and old fuel.

[@lynnyazzie5495]

Thank you for your video it was very informative. I needed info about the carb for my kids 2006 TT-125L.

[@dawidkoscielniak9578]

Thank You, very helpful video, my TTR 125l 2003 starts perfect now.

[@pedropinheiroaugusto3220]

Just bought a XT 225 Serow with the same symptoms. Going to give it a try, after discarding the usual suspects. Thanks

[@TJFrans]

Glad I found this! Seemed to have fixed my hard start issues!

[@xlr8wme]

Thank you I’ll give it a try as I’ve definitely had starting issues!!!

[@TepcoCycleRepair]

Your pilot jet is clogged, its the thin jet that is a 15 stock OEM part # is 5HP-14142-15-00. You will need to get a VERY fine wire to clean it out (I use a brick brush bristle) or just replace it with a new 17.5. If it runs with the choke on and dies when you flip the choke off, your choke is working.

[@tubergenmotorsports4193]

Thanks! Going to clean mine rite now, it been getting progressively worse so I'm sure that's it. My choke also froze shut once and broke the cable! Thinking of selling this thing and getting another XR80 That bike starts when you look at it. ; )

[@TepcoCycleRepair]

Great, yes clean that choke plunger and put some oil on it to prevent it from sticking. After you clean the choke hole like the video it will start like a charm. XR80's are good bikes working on one now a classic 1979.

[@DFroese]

Thank you. I think you did a great job. Too bad I did not see this before I bought a new carburetor. Thanks again! !

[@TheRatbag92]

Will this problem reoccur? As have had trouble starting my 07 ttr 125 since brought it and its been so frustrating to try and start.. This weekend i have given up and want to get rid of it due to it not starting. But thinkin of reconsidering it after watching this and might clean the card and jets and choke..

[@TepcoCycleRepair]

Keep the bike, we can fix it. The bike in the video is a 2007 with 12 fender/number plate on it. I have seen carbs go bad from one winter season. If you brought this to me here is the order of repair. (assuming you have good compression) Check for spark, flush all fuel! this is usually over looked, you want to be sure you have fresh gas with no water in it. This ethanol fuel attracts water and it will sit at the bottom of your tank and or fuel can. Get your tank dry and put some fresh super in it from a can you filled from empty! Then pull your carb and make sure your choke is moving 5:56 in the video. Then pull your jets and make sure you can see light through them. The pilot is the thin long one, the hole is tiny you must see light through it. You don't need to replace them just make sure you can see light through them and carb cleaner blows through them. If you have to replace them, get OEM ones not cheap China jets. Then unscrew your mixture screw, its the one at the front of the carb going straight up from the bottom, it is a screw/spring/washer/oring in that order. pull them, careful the washer and o-ring are tiny, dont lose them. Blow carb cleaner through that hole as well. Put it all back in reverse order GENTLY seat, then back it out 2.5 turns. Do the repair in the video, then shoot carb cleaner down the hole at 7:07 in the video and make sure it comes out in the bottom of the bowl. If you have compressed air shoot that through all the holes you shot carb cleaner through and I would highly recommend you get a wire small enough to manually push through every jet, I use a wire from a brick brush. Put it all back together and fire it up. GL Please let me know how it works out or if you need any further help.

[@kevincannon8811]

Thanks for the video! Can this procedure work as well on my TTR230? It is hard to start and is electric with no kick to use. Thanks!

[@TepcoCycleRepair]

Should be the same thing! Make sure your pilot jet is clean as well, that's the most common problem I see on bikes that sit a lot. If the bike idles perfect and revs up fine when warm, don't worry about the pilot, just do the above repair. GL

[@markfawcett5546]

Orsum tepco 1 solved my problem Thanks heaps coming to you from Bunbury, Western Australia Australia

[@TepcoCycleRepair]

I responded in a message by mistake so I will respond here so others can see. The hole gets clogged by debris, like dirt or corrosion old gas etc. so it has to be manually cleared out. Carb clean and the like are not strong enough to clear it. I would use the carb cleaner to clean out any loosened up gunk and corrosion you created and to be sure it is flowing freely.

[@michaelgraves1985]

Hey bro can you make a vid where it shows what you took off

[@TepcoCycleRepair]

@Jose, I'm sure I can help. Can you be more specific? Which hose are you talking about?

[@rcwannabee]

Thanks for posting! Did this and the bike started, but I can not use the choke as it kills the engine immediately? Any ideas? I may have enlarged the hole a bit, but apparently that should not be an issue. Just purchased the bike recently so I am unsure of its history, but it was running well and started fine when we got it and after the first long ride the cold start became and issue. Seemed to idle to low as well, so I adjusted the idle screw a tiny bit (1/16 of a turn maybe).

[@TepcoCycleRepair]

If you made the hole big, its going to suck up more fuel then normal and flood it which will stall it. It will also make you have to turn the choke off quicker after cold start. Many engines will stall if you pull the choke when its running so no sweat there. Make sure your pilot jet is clean and adjust the idle and mixture screw to get a smooth idle.

[@rcwannabee]

tepco1 Thanks. I need to pull the carb and do a full clean, I was short on time and only did the bowl. I tried the bike the next day and it started right up with the choke pulled about half way and did not need it within seconds, so I think the choke cable may need some adjustment (if it can be) as I think it is trying to pull it too far. But it starts better and that was the goal. I won't play with anything else untill I get it apart and properly cleaned.

[@jimforsyth2.]

thanks good video it hard to find videos that show you why.

[@ih302]

Are you simply cleaning the dirt out of the passage with the drill bit or are you actually making the hole in the casting bigger?

[@TepcoCycleRepair]

Just cleaning, not making it bigger.

[@ih302]

@@TepcoCycleRepair Right on... I have the same issue with my son's bike now. I've had the bowl off 3 times now. After I put it back on, it fires right up but goes back to not starting the next day. There seems to be a chunk of dirt floating around in the lower end of the passage that gets sucked up and plugs off that tiny little hole in the brass plug. I don't know what Yamaha was thinking, that brass plug should be at the very bottom of the passage and visible from the inlet. Anyways, I'm sure I'll get it sorted eventually, thanks for the video.

[@paoutdoorsman]

tepco, is it an accurate to conclude that if idle elevates when the choke is on, and lowers when the choke is off, that this hole is not clogged and fuel is getting into that chamber for the choke circuit just fine? I have a 17.5 pilot, and what I would consider an extremely clean carburetor, but it can still be a bear to get started when it's cold.

[@TepcoCycleRepair]

Yes that is correct if the RPM changes when you move the choke that shows that it's working, if it's still hard to start it could be your pilot jet, if it idles usually the pilot jet he's okay but ,try that and see how it works .

[@isaacanthony5242]

thanks. worked great on my ttr230. the 125 is next

[@TepcoCycleRepair]

Isaac Anthony Great, thanks for watching!

[@AdamGillrie]

This was brilliant. Worked like a charm on my 05 TTR 125. Thanks!

[@cmartin0820]

my son has the 2006 TTR-125E. he sank in in a puddle last year, we cleaned it out, drain all fluids, and it ran like a top,. we didn't ride for about 4 months and the choke cable will not pull out now. in your video you reference a choke that is stuck in the housing. if i remove the nut from where the choke cable goes into the carb, should it just pull out.or is it connected to something inside the carb?

[@TepcoCycleRepair]

Yes loosen the nut where the cable goes into the carb and the choke will pull out. Now that yours is stuck it wont come out easy, you will most likely need to pull the nut up and spray a penetrating oil in there and work it out. After you get it out clean it good and in the hole then lube it with oil, I use Superlube its like dielectric grease. Good luck its stuck in there from corrosion so be patient, I've had some that didnt come out but after 4 months you should be able to get it.

[@LRDBKR]

i can get mine running, but once i get on the throttle it runs terrible and cant seem to get the carb to "clear" up. Ive torn the carb apart numerous times and still cant figure it out. Im going to give this a shot tonight, any other advice would be appreciated.

[@TepcoCycleRepair]

Make sure you can see light through all of your jets and that they are stock size or close to it. Set your mixture screw at 2.5 turns out and make sure your float is set right. GL

[@tuulik6588]

I bought a 50cc bike last year(winter project). Did top and bottom end rebuild, basically, I switched out everything in that engine. For like a week or 2 it worked great but now I have to kick it like 10 times to get it started(cold). The only thing I didn't work on was the carb so it couldn't be anything else, right? What else could it be?

[@TepcoCycleRepair]

Clean the carb and check what I go over in this video, you should be good. Something probably clogged the choke circuit.

[@GoldenStateBass]

tried this a bit and it might have been part of my problem but it was actually my float adjustment that was wrong. A simple lowering adjustment and she was purrin.

[@Jursaw]

I am very surprised no other video has shown this. Going to have to give it a shot because I cleaned the pilot jet but still had the same issue

[@TepcoCycleRepair]

This should fix your hard start issue, thanks for commenting!

[@Jursaw]

@@TepcoCycleRepair I will report back in a few days hopefully! Have to find time to work on it

[@TepcoCycleRepair]

@@Jursaw Please do!

[@NeilCowancowannetwork]

Wonder if this would be the same issue my 2009 KTM 450 XCF is having. Bike has a real tough time starting when cold, even worse almost impossible in high altitude. When I got the bike carb was REAL dirty, cleaned it 3 times, also went to set the float and from the factory settings when the float is level I get no gas, I them I adjusted it down in the bowl a little more and then the carb would get gas and the bike would run. Now when the bike is hot it starts fairly easy "most" of the time but not all the time. Do you think this could be the choke circuit hole? Or the float setting, or something else? Driving me nuts! Any help you guys could provide would be awesome!!!! Thanks!

[@TepcoCycleRepair]

Neil Cowan When the float is level it should cut the fuel off. Choke circuit may be the issue although I would check your valves. Tight valves will cause a similar problem but harder to start when hot. I would check, compression, (auto decomp will make it read low, see leak down test below) valve clearance, pilot jet, mixture screw, and if you have the ability do a leak down test which is very important and will answer many questions. I would also start with stock jetting, make sure you can see light through the pilot jet and the mixture screw is set to..try 2 turns out to start and adjust from there.

[@heidihicks9585]

Great advice, I'm definitely going to try this right now. My bike would sometimes start while the choke was open but it wouldnt idle, or the idol was extremely low. so I would adjust the fuel screw, then as the bike warmed up it would idol extremely high so I would have to readjust the screw and turn it back down. I've already jetted the carb. I've read lots of stuff about the air screw and the fuel screw. Do you have any advice on this? My bike is a 2005 Yamaha TTR Le 125 thanks!

[@TepcoCycleRepair]

Yes, set your mixture screw to 2 turns out to start. Make sure, I mean 100% positive, you can see light through the pilot jet. The pilot jet will stop the bike from idling properly if clogged. This repair will fix cold starts, but if it can't idle it's something else. (Most likely the pilot jet)

[@heidihicks9585]

@@TepcoCycleRepair will definitely check that pilot, if that doesn't work you will hear from me on here again. Thank you so much for your reply. I miss riding my bike so much every time I stop I have to keep the clutch held in so it doesn't die...

[@TepcoCycleRepair]

@@heidihicks9585 sounds good, let me know if I can help!

[@heidihicks9585]

I'm at the point I'm going to get a new carb. Pilot was fine. I just can't get bike to idol properly. For a few it will be at a nice purr, then progressively gets higher and higher and higher. if I turn idol screw down, it won't stay started. ugh...she is being such a pain. thanks so much for the help!

[@TepcoCycleRepair]

@@heidihicks9585 sounds like it might be going lean. When it starts, spray carb cleaner around the carb intake boot and cylinder head gasket area and see if that changes the idle. Sounds like it might be sucking air in somewhere. Or fuel flow to the carb is restricted. If you have an online filter, remove it.

[@mcildaftie]

I'm having similar problems with my Suzuki GSX 600 f. I'll have a go to see if this fixes it. Cheers!

[@nathanielselvidge4157]

Well did it work brother?

[@mcildaftie]

@@nathanielselvidge4157 I couldn't get the the tops off. The screws were starting to round. I did manage to balance the carbs and sprayed them with carb or brake cleaner and the bike run much better, smoother and started easier. Thank you for the video

[@hagoofi55]

Hi, does this still apply if it’s a brand new carbourator, also I don’t have that plastic bowl piece that you said don’t lose when you took off the bottom bowl. Do all ttr 125s have it?

[@TepcoCycleRepair]

Yes all the 125's factory carbs should have it. This hole should not be clogged on a new factory carb.

[@lit3220]

hey I'm having the same problem with my 2003 TTR 125l 4 stroke do you think doing the same as you did in this video would solve my problem ????

[@TepcoCycleRepair]

Roy Williams lll absolutely