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Fmf 4.1 jeting

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Is this bog when gassing it or when the motor is running at a higher RPM. If it is a bog William1 is pretty much on the money but I wouldn't rule out a fuel screw adjustment either if it is on acceleration.

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Fuel screw is for idle only. Adjusting it to compensate for a fuel issue off idle is when people end up with all sorts of woes.

As the bike throttle is opened, the pilot jet and fuel screws effect is constantly diminishing and the needles straight diameter is increasing. Once you get to about 1/4 throttle, the effect of the pilot jet and fuel screw is about zero.

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