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RMZ 250 jetting question ?

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Hey James, We have a new rmz250 it has the bog when you hit the throttle even when it warmed up, also the bike pops alot when decelerating. Sounds like it's to lean and it needs jet changes. Temp 30's to 40's sea level.

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popping on decel, unless horribly loud, is normal on kxf/rmz's....i think it's the exhaust that does it because every one i've heard does it.

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Hey thanks everyone changed jet to 42 and adjusted air screw to 2 1/4. Works good, also sounds a lot better with the FMF pipe.

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I have a rmz 250 and was wandering what the jetting should be for 50 to 60 degree weather and a alltitude of about 800. It is stalk jetting and i think im running to lean. i would appreciate anything thanks.

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