ASK THE MXPERTS: 2008 YAMAHA YZ250F JETS?
Dear MXA,
I need jetting specs for my 2008 Yamaha YZ250F.
We need a $1000 in small bills, but you have a better chance of getting what you want than we do.
The stock main and pilot jet are fine, but you need to replace the OBEPQ needle with an NFPR and the stock 80 leak jet with a 70.
That should do it (except for adjusting the fuel screw?start at 2-1/8th turns out).
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