Checking valve clearances on my 2021 Yamaha YZ250FX
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- Опубликовано: 13 сен 2024
- 25 hour valve clearance check on my 2021 Yamaha YZ250FX.
Tools used in the video
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14mm hex head - amzn.to/3AQuNpE
Drill/driver socket adapter set - amzn.to/3hYbUsl
20v porter cable drill driver - amzn.to/3yQAMJs
I couldn't find exact links for some of the tools but here are some good options:
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Socket set - amzn.to/3e9r1hc
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#YZ250FX
#YZ250F
I should have mentioned in the video that removing the fuel tank entirely isn't necessary to perform this check. For purposes of the video I removed it to facilitate better lighting, camera angle and to get the fuel line completely out of the picture. I also thought it was a good opportunity to show how to disconnect it for those who haven't done it before.
Thank you for doing that.
Hey man, you should do video where you check the piston, your videos are very helpful!!
Checked my 2020FX valves at 70 and then again at 105 hours. No change detected in measurements and within spec. Now I have 50 hours on my 2021FX and have not bothered to check them. Very happy with these 250FX bikes.
That’s awesome. Thanks for watching!
Hi guys im am going to buy wr250 or 250fx 2020-2022,not sure but I have gotten question about engine lifetime
How many hours you do on a piston on theses bikes ? Any problems with them ?
I am choosing between excf 250 and wr but I think that the suspension of the wr is way much better than ktm.
I will use this bike to cross country/ woods and enduro racing
@@forestboy1817 is very personal but I choose 250fx. Kyb is the best and yamaha engine is more durable
Thanks for a great video! You made it look easy. I'm at 210 hours and still in spec but I do ride like an old man!
Thanks Darrel!
Это вы 210 моточасов на одном поршне проехали?
265 hours on my 2016 Wr450f still in spec !
Exactly the video I was looking for! Well done with the detail in the tear down!
Glad it was helpful. Here’s a follow up video showing how to adjust valves
ruclips.net/video/O9_vBAa2hzQ/видео.html
Thanks for the video I only have about 15 hours total on my 2021 250 im glad I can continue to trail ride for another season pretty safely 👍🏻
Good video. You don't have to remove the fuel tank. Just turn it around and it will sit on the battery/rear fender. I put a towel down so it does't slide.
Thanks for watching! I'm aware removing the fuel tank isn't necessary. I should have mentioned that in the video as you're the 2nd person to comment that. I needed to remove it for the lighting and camera angle plus it allowed me to get the fuel line completely out of the picture. I also thought it was a good opportunity to show how to disconnect it for those who haven't done it before.
Thanks Donnie! Very helpful.
Thanks for this video Man! I'm new to the 4stroke world I've been on 2 strokes my whole life so I'm lost.
Thanks for watching!
Just picked up a 19yz250f I’m doing maintenance and recording clearance as I go thanks for the vid
Thanks for watching. Here’s a video on changing shims if you need it. ruclips.net/video/O9_vBAa2hzQ/видео.html
Great video as usual. Our trails are still closed due to fire season. Looks like they will be closed for a while. I did just get a new gravel bicycle so hopefully I can hit some trails with it.
Thanks for watching!
What the f is a gravel bicycle?
you don't have to remove the fuel tank... you can lift it up and bungee cord it out of the way... that way you dont have to deal with the connectors
Yeah, I should have mentioned that. I had to remove it to get good lighting and camera angle. Thanks for watching.
As always great video👍🏼👍🏼
Thanks for watching!
Can you reuse the head gasket?
Have you replaced piston/rings on your YZ250FX yet? If so, how many hours? Video? Thanks!
@@used2befast No, I sold the 21 at 140 hours. I now have a 23 with 97 hours. I bought the parts to do it but just haven’t seen the need to yet. I know guys who have well over 300 hours with no work. But it definitely depends on how they are ridden, etc.
When would you suggest replacing the piston?
Currently running a beta 200 in xc2c our small bore class, looking to add a 4t to the stable currently my #1 is the 250fx followed by a Sherco sef 300, then the Ktm 250xcf… Yamaha price point is nice
Can’t go wrong with a 250fx! Thanks for watching.
I had 2020 350xcf and now I have lightly used 2019 250fx and will NEVER part with the fx. Yes the KTM is a quality piece.....for an A class pro, for everyone else? Get the fx....and it handles better too
Off topic but did your Seat Concepts come with the fuel cap cover? Have been looking at that brand but don’t see one available with the cap cover.
It did not come with one. I bought a OEM black one instead of using the blue one. The oem part number for the black one is BR9-2464E-10.
@@DirtBikingwithDonnie thanks you sir!
I’m a 2 stroke guy really looking at the fx. I race a cross country series and ride mostly single track. 6’0 170lbs. I really feel the 450 would wear me out. How’s the 250 been for you?
I love it. I had a 2 stroke KTM before this bike and I should have made the change sooner. I put 140 hours on the bike in this video and now have 40 hours on my 2023 yz250fx.
I've got a 23 450fx and when I setup the app. The units are metric. Celsius and kph. How do I change that? I can't find any way to do it so far.
This may seem like a noob question but it's because I am one lol. Is it the same process for the 450fx? I'm at about 18hrs so that's something I'll be doing here shortly. Thanks.
It’s basically the same process. The clearance specs may be different.
@@DirtBikingwithDonnie awesome. Thanks.
@@codywilkins8380 Also check this video where I showed how to change shims. ruclips.net/video/O9_vBAa2hzQ/видео.html
Do you feel any change in bottom end with the new air filter and cage?
I didn’t notice any power gains from the Notoil super flow kit but I do think it creates a better seal overall. That’s just my opinion, I have several friends running the stock setup with no issues at all.
Keep in mind that the timing chain is usually the weak link on the 250Fs. They will jump time and drop a valve and go BOOM.
Good point. Thanks for watching!
The timing chain on the yz is the best in class, with a screw tensioner that it never fails. You might want to change that statement to maybe KTM... That it's know to have a failing auto adjust tensioner that it's known to let the chain jump teeth...
@@vegasromaniac It's the weakest link, Likely no problem when ran at lower RPMs. But when raced at higher RPMs the chain needs to be checked and replaced per OEM spec.
What socket you using for spark plug? I've ordered couple sets now and they aren't thin enough to fit
I use a regular 14mm deep well socket. I haven’t found a true spark plug socket that works. If you still have your original tools that came with the bike there should be a tool in there as well.
@Dirt Biking with Donnie and Chase gotcha! Thank you.
So I got 300 hours on my bike… how do I fix the clearance if the clearance is off
I made a separate video for changing shims. Here is a link. ruclips.net/video/O9_vBAa2hzQ/видео.html
What size socket to remove spark plug?
14mm
If it isn't making ticking noises or running bad nothing is out of spec. and your just wasting your time ? Why check it
I did it simply to make the video and to get baseline measurements for future checks. It’s something that many people are interested in and the video has done well on revenue, so it was well worth my time. Two of the valves needed shimming at 60 hours and I made another video of that process. Hopefully one of those will be helpful to you at some point. Thanks for watching and commenting.
Isn’t life easier with a 2 stroke?
Lol, yeah but this gives me more video opportunities! Thanks for watching!
You did it wrong, you were supouse to dip the filler gauges in virgin oil, collected from a virgin from the island of easter... Otherwise the spell is over, the bike will become a 2 stroke over night.. :) good job my friend.... Good job
😂 Thanks for watching!
25 hrs…… way to soon. Great video though!
I had some free time, lol. It’s rare. Thanks for watching!
No it’s not. My intakes were tight at 25 hours or so.
Austin Horna Is your bike a Yamaha
@@nvmcrider8475 yeah 2020 yz250fx
Depends on how hard you ride.. adjusted mine 3 times in 100 hours
Дякую ... Украина вас дивится..
Thanks for watching!
In my opinion they have made motors the don't work logged naf end they're very price Motos