Jump to content

Yz250f hesitation

Recommended Posts

I have a 2009 yz250f with fmf megabomb header and fmf powercore ti muffler, there is slight hesitation right off idle if you hold it there it will sputter. If you just pin it, it won’t do it. IMG_2955.JPG

Share this post


Link to post
Share on other sites

Had a similar problem but I had sputtering and hesitation when I tried to pin it. At low speed and i was good. Carb needed to be cleaned. I just new jets in and it runs great.
Maybe it wasn't jetted correctly either with the new exhaust. Just a thought.

Share this post


Link to post
Share on other sites
Had a similar problem but I had sputtering and hesitation when I tried to pin it. At low speed and i was good. Carb needed to be cleaned. I just new jets in and it runs great.
Maybe it wasn't jetted correctly either with the new exhaust. Just a thought.

I’ll probably have to rejet it, I got the top end completely rebuild and the person that done it rejetted it because the ones that were in it were way off and it wouldn’t run worth shit. Once it was rejetted it ran great but always had that little hesitation.

Share this post


Link to post
Share on other sites

Curious if the #78 o ring trick would help. Have you looked into that? 

Share this post


Link to post
Share on other sites
Curious if the #78 o ring trick would help. Have you looked into that? 

Thanks! I’ve never heard of that, to you put it on the jet needle???

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:


×
×
  • Create New...