04 YZ450F Running Rich on Top w/ Stock Main

Kind of funny, runs pretty good except at the top end I'm stuttering and my buddy says he can smell gas when hes riding behind me... Any ideas??


The main is the stock 165. Not really sure where else to check. Thanks!!

So, it's worth mentioning the air filter is dirty, the plug is a CR7E not a CR8E and I was riding at a slightly higher altitude.


Sounds solved to me, maybe some veteran YZer will come along and lay down the knowledge hammer.

Just thought of something, anybody know the stock needle or clip position? I can't imagine I'm totally right.


Any pro knowledge hammerers?

Clean the air filter and reoil it first.  Then we'll talk.

I love that hammer gray!



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