high idle

Norman

LORD VADER Moderator
Jan 16, 2008
2,605
2
38
68
pampa texas
Is your throttle cable adjusted a little bit too tight? there should be some free play in the twist grip before the throttle responds about 1/8" of free play is good.
 

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,843
237
63
up north now
Check the carb to intake and intake to cylinder areas for leaks. Better yet, take them apart and seal them up with RTV on both sides.
 

Brains

New Member
Jul 21, 2008
132
0
0
Adelaide Australia
I had the same issue with one of my bikes a while back & the remedy to it was exactly as Norman suggested, the cable did not have enough free play in it so every time I moved the handle bars left or right the engine statrted to rev higher & I couldnt get my revs down with the idle screw, gave the cable some slack & it fixed the problem instantly