How to Adjust Valve Clearance with Shims on Yamaha YZ250F
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- Опубликовано: 8 июл 2024
- I rebuilt the entire engine on my Yamaha YZ 250F and put it back in the frame without checking the valve clearances, today I measure the clearances between the camshafts and the valve lifters
It’s regular maintenance on a 4 stroke motocross, so it should help if you want to check and set your valve clearances 👨🏻🔧
The symptoms you may already know: your engine becomes harder to start (or the bike doesn’t start at all), or it pops a lot when cutting throttle… then it’s possible your valve clearances became too tight overtime
A clearance too tight - or even at 0 - means that when parts dilate with heat, you have the possibility of having a valve that doesn’t close or seal anymore
So let’s take the torque wrench with the feeler gauges and measure the play between camshafts lobes and valve lifters ! 🔧
Join me in my projects: bit.ly/2Wd2L5Y
Live updates of the build on Instagram: / tristandurandbuilds
LINKS OF PARTS AND TOOLS USED IN THIS VIDEO:
Stainless Steel Feeler Gauges - Metric and Imperial: amzn.to/3hA71p2
Digital Caliper - Imperial and Metric: amzn.to/3yDlFD5
Hot Cams 7.48mm Shim Kit - 1.20 to 3.50mm in 0.05mm increments: amzn.to/3wkMH06
Digital Torque Wrench from 4 to 37 ft-lb: amzn.to/3jUlv69
Hi I'm Tristan!
I live in New York and when I'm not working on my fitness clothing line (yoked.net) I DIY with intensity 😅
For now, I restore wrecked, neglected or simply damaged motorcycles. So I disassemble, weld, machine and fix those bikes so they can go back on the road!
Join me in my projects: bit.ly/2Wd2L5Y
Live updates of my builds on Instagram: / tristandurandbuilds
If you have any questions write them in the comments and I'll make sure to help 👍
Thanks for watching!
#valveshims #motocrossmaintenance #valveclearance 
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Tristian, your explanation of the math is one of the clearest and simplest I’ve seen so far, especially with the valvetrain drawing you made. Most people dont realize that it’s the valve seats that wear and that you need a THINNER shim to increase the valve clearance measurement. Great job man!
Thanks a lot for your kind words, I’m happy to see you like my work 👍
one tip I found out when doing mine for the first time, and would have saved me a lot of time and effort is that when you take your first clearance measurement, record it, the loosen off and remove the cams, then install and re-torque them to spec and measure again. you never know if the mechanic before overtightened or not and in my case it made a huge difference.
Most informative and easy to follow video I have seen on this topic so far! Thanks for taking the time to make this.
Great video, I have a 2008 YZ250F in the UK and have the Hot Rod shim kit and will be attempting my first shim check and adjustment with your great insight, thank you 🙏🏼
This was a great explanation on valve adjustment! The illustrations were simple and straightforward and helped me gain a better understanding. Thank you!
By far this is one of the best explanation videos I've seen so far! This video literally just solved an exact issue I couldn't quite figure out completely. Great video man!
I just got into the 4 stroke motocross scene so I didn't knew much about how to set the timing. But you did such a good job explaining it so great i understood everything! Thank you Tristian 🙌🏼 Greeting from Germany ✌🏼
You do a great job of explaining! Keep up the good work!
Your shop is clean and the lighting in your shop is really good . Great video.
This will come in handy when I have to adjust the very same valves on the very same bike as this video😬 She’s a great bike Tristan, top notch job on this rebuild. Having a blast on it!
Very clear, good job! Feel confident I can do this. Thanks
By far the best explanation on the internet thank you very much, you made it so simple
GREAT JOB Explaining how to adjust the valves with shims!! THANK YOU! One of best videos out there! Thank you
I’m happy to see it helped Gregg ✌️
The best video on VC adjustment.
Excellent job on this video explaining everything. Thank you
Very clear an well executed 😊
Great explanations and great video! Well done 🤙
This video is gold. Truly did a super job, I personally think this is the best video I've seen in a long-time.
Thanks for the compliment ☺️
Thankful . The descriptions are complete and accurate
I try 😅
Yeah Tristan! Well done on a simple yet informative and understand explanation of shimming the valves.
I actually appreciate that I can help, that’s why I made that video 👍
Super good video. Well explained. Great dude.
Excellent build always wanted to see inside one of these style of engines the valve adjustments with the shim Missouri interesting but that must have taken some time I've heard guys complaining about it you did an excellent job building and filming thanks
Excellent description thank you so much 💯 🔥
This helped so much. Thankyou very much!
Excellent, Excellent, Excellent job explaining and your diagram was perfect thank you so much!!!
Thank you so much for the awesome video. Only part I was confused on was putting the cam tensioner back in
Thanks Criss! The cam tensioner is pretty straightforward but keep a screwdriver turned all the way in when you slip it on the cylinder 🔧
Great video, very in depth and descriptive, you make the process easy to understand. And your camera work is good so we can SEE what you’re doing.
Thanks Grant, I appreciate that ✌️
Awesome video, thanks!
This video helps me a lot, first I look for help on Polish RUclips, but everything is too broadly
This is as the greatest video BY FAR, I’m trying to decide to do my motorcycle clearance and I was a little worried I wouldn’t understand the math, or how any of it worked, and this was the best video I’ve ever soon, thank you, all the other videos just made me have more questions, you deserve a follow.
amazing video bud I really appreciate it! ive never done any of this so its super informative!
I’m glad you find useful information in my vidéo man ✌️
Awesome.. vid very informative. Just waiting for the full rebuild video so I can hear it start
Holy Shit this is the explanation I needed to see to be confident enough to tear into my 07 yz450f! The zip tie was genius because I was concerned about that too! The explanation of valve wear was perfect. I wanted to know why the shim picked was the shim picked and how it compensated for wear! Nobody could explain it buy you you're a damn Picasso! Beautiful! Thank you!
Great video!
finally! i now understand exactly what is happening inside, you, sir, are a life saver! thank you for all the effort and energy that went into this video, now i'll be able to learn from my mistakes, oops, i meant experience, lol
Thanks for your appreciation man ✌️
this is gold. thank you
Thanks for being detailed and thorough!
Yeah I heard that a few times 😅
Thanks for your appreciation 👍
Man, you are a genius. Thank you very for sharing. I just picked up my very first dirtbike yesterday, a 2006 YZ250, maybe old bike but in great condition. Its starts right away, rums great. Watching your video makes me feel like ive worked on this bike before. My level of experience is only up to a 65cc ktm, rebuilding DIY, My son’s race bike.
Thanks for the compliment man, you have a great bike, a YZ250 is a great bike, I hope you have loads and fun with it 👍
Great explanation! Thank you so much for doing this.
Glad to see you take value from it ☺️
Good video will help me soon thanks
Dude nobody can explain math to me and I've never understood it. But damn if you didn't break it down for me. Wish I had a teacher like you in high school. 💪
Sometimes you just need a different approach to things and it clicks.
Glad I helped man👍
@@TristanDurandBuilds Thanks again bro🤙
Most helpful video I’ve seen yet
That makes me happy to see it helps 👍
great video 👍
Would have been nice to see the rest of the bike going back together. But I'll be using this video for reference in future. You explained it very well 👍
I’ll post the video this week 👍
very good video, thanks alot.
Thank you brilliant expiation well done
Simply the best.Nice and slow great explanation how to do it🇺🇸🇺🇸🇺🇸
Great video thanks
Love that tubular frame means that could be an '05-06, cant believe how clean that is. I have the '05 WR450F thats just as clean and will be doing this soon, great job...
Awesome vid and edits and filming and bike and drawings and you also did a awesome job explaining things
Thanks Conner, I appreciate your encouragement ✌️
@@TristanDurandBuilds your welcome you deserve more subs and likes
Fantastic!
Excellent!
Thanks for the video it was great and that’s a great idea to zip tie your chain on the cam.
Zip ties are the builder’s best friend 😅
Nice drawing!!
Very good video:) Thank you👍😁
Thanks Gareth ✌️
Well done. Thank you very much.
Glad it can help✌️
great video👍👍
Thanks man ✌️
This guy is amazing
I know! 😅
Excellent. ❤
Nice video learned s lot
Thanks for your message Vincent, I’m glad it helped 👍
Detailed information 🙏👌👍
I try 😅
This guy is amazing, am I the only person wish that he was a close relative... awesome video bro
Thanks a lot man I appreciate that ☺️
Hello, thanks for the great explanation! could you tell me how did you solve the celarance on the thigt valve (0.03mm) ? i have exactly the same situation on my bike
Great regard from bali island..im new sbscrb goes on
The best 😎😎
Great video. I was confused because the readings I was getting on my 2001 Kawasaki KLX 300R were literally off the charts. But they were inaccurate. I took the measurements without the Cam cap bolted down. Duh.
Right, it happens to be the best of us 😅
Hello. I don't see the mark on the flywheel. can you find the brand?
where would you recommend getting a carburetor from, for a 2002 yz250f??
You deserve a million subs. How long should i check the clearance again after this.
Thanks for the compliment!
You should do it every season if you don’t race and if you race, before every race 👍
Hi! I just bought the same bike, but it comes with a big bore athena 290 cc cilinder...
My question is, may i have to change the valve clearance or i have to keep the same of the 250cc? Thanks a lot!!
This is the Best video I have seen on this. Question: if I put cams in head and bolt the caps down should I be able to turn the cams. When I bolt it down it’s really tight and cannot turn the cams at all. No timing chain on it and no buckets. Cam doesn’t budge. Seems like I should be able to rotate them until the lobe hits the bucket or valve stim.
Agreed, it should turn freely, you have a problem somewhere, either the cams aren’t straight (or wrong diameter) or the caps aren’t placed properly
Nice explanation👌bro.I admire your mood.With my years even if have 1 WRF450cc im boring 2 open it.So I open only 2strokes (friends bikes)easier job 😉
I’ll do a 450 soon 🤫
@@TristanDurandBuilds Man I type even if I have 😅🤣😂shit english I mean even if I had problem with my WRF450CC I'm boring to do more than change oils/oil filter /air filter & if we are ready after winter with a lot of mood maybe clean carburettor
@@TristanDurandBuilds English not my mother language im from GR. Greece 🇬🇷 3years lessons plus working summertime night clubs.(But general speaking)I prefer 2strokes for everything fixing- riding after all I was racing with RM 125cc 96model summer of 96 best RM ever all the rest Suzuki was trash 🗑 😄 Now we are old 40+ so I have 1 WRF cuz it was the only bike I never ride.PS too heavy for my REDBULL style of practice 😜😉
How much is the used yz250f engine there,
Awesome video. Will those valve clearances apply to a 2003 wr450f? Thanks for the info
Sounds like a no
What year is the bike?
Perfect drawing. It can be confusing as to why a thinner shim gives you more clearance. And vice versa.
Yes the first time for me was confusing too, I was used to seeing too much gap on cars
Wow... I would like to buy a 2009 yz250f and the gentleman is telling me that bike takes to long to start or doesnt start at all. He was told by his mechanic that he needs an overhaul cylinder kit. I think its the valve shims. What do you think?
Wheres the rest of the videos
Question. So you have valve specs in your service manual to go by when adjusting valve clearance. But how do you adjust valve clearance if you change your stock cams for performance cams. Wouldnt the valve clearance specs change cause you have different cams. Can you please explain
I would still use the stock numbers (unless the new cam comes with new specs)
I noticed he didn't use a valve spring compressor to take them out or put them in. Will I need one? I have a 2010 yz250f
I didn’t take the valves out, if I was taking the valves out I would have to use a spring compressor 🔧
Another reason 2 stroke dirt bikes are way better.
Ya mannn
Tbh for me I don't like the sound of a 2 stroke and thats about it.
Only reason
@@xxs1lentk1ller30 They are lighter and more powerful. And on and on and on.Get cracking . then come back. Thx
They ride smother too
You bought everything new,new fork and fender.The frame is powderd or just colour?
I bought a lot new indeed but I restored a lot as well, I’ll show all that in the video of the complete rebuild that I publish this week end 👍
@@TristanDurandBuilds thanks Tristan
Is it the same clearance for my yz250f 2007
You should look for a service manual online to make sure of this, it may not be as you have a 4 valve
@@TristanDurandBuilds this has 5 valves too
What if the valve buckets won't come out
They should with a magnet, something may be bent if they don’t come out 🤷🏻♂️
Good tip with the zip ties.
So did it start?
Ha ha, you should see that soon, the coming video is a big video for me, a lot happened
How great would it be if you upload just a little more
I know, I’m trying, I’ll upload this weekend
69th like!!! Great video!
Lol! Thanks man ✌️
I have to ask where is Yamaha xv920 ??????????????
I really what for this darling
The Virago will reappear soon, I want to ride it for the summer 👍