August 5, 201016 yr Hi, Just bought a sherco 290. when you rev it up abit it seems to take a while for the revs to go down. Any ideas why this is ? Thanks
August 6, 201016 yr Of course if you rev them high, takes a bit to come back down due to the flyweight effect. If you barely rev them and the revs linger and float and such, likely a dirty carby or mix screw set too lean. Or other issues!
August 6, 201016 yr Author ok thanks wasnt used much by the last owner so will take carb off and give it a clean.
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