Idling question

[shawnshank]

I'm running a 40cc Tanaka engine on a GEBE kit and it runs like a charm but I notice that when I start the engine and let it idle and lift up the rear wheel, the wheel starts rolling at a preety good speed. It's not enough to move the bike when it's on the ground and the kickstand is down but I'm just curious if this is normal or does it need to be adjusted in some way to stop idling so high.

 

[mattysids]

well assuming this is running a centrifugal clutch, then yes you do need to lower the idle speed unless the engine sounds like it's at a good speed and the clutch is just not well isolated

The idle speed screw is ordinarily a larger screw on the carb with a spring on it's threads. It would NOT be in a set of two screws right next to each other which are the mixture screws