when i turn on the scrambler at 1/2 choke it ideal normal no problem but when i turn the choke off it rev to high rpms? what cause this...

 

anyone?????

 

Usually with a 2 stroke, high or runaway idle speed is an air leak, when lean, 2 strokes tend to rev higher. When it is idling high, spray carb or brake cleaner around the carb, intake,exhaust, and if the idle suddenly changes, you found the leak. There is also a chance a seal on the motor is leaking, this would allow it to suck air into crankcase, leaning out the mixture. If you dont find a leak on the top end, spray around the gasket surfaces on the jug, and cases to see if you are sucking air on the bottom end.

 

i think there mite be leak around the oil system not sure yet have to get a can of carb clean to make sure. the carb seems fine but not 100 % sure i mite pick of a rebuild kit for it... i will let you know tonight thanks for the reply..

 

Pilot jet is plugged

 

do a compresion test....my buddy's was doing that and it was a head gasket

 

you have an airleak most likely. turn up the air fuel screw.

 

Tyler, if he does have an air leak, it would be best to repair it, not bandaid it by adding more fuel, if it got suddenly worse, he could burn up the motor.

 

i agree 100%. but chances are that it wont get worse. i sure wouldn't want to go into the internals of a big utilty machine. its a pain. i would just richen up the air/fuel mixture screw and keep an eye on it and see if it gets worse. my .02