I've recently bought a 70cc Airsal kit. mounted it with no trouble but whatever i do it won't start at all... it ran perfectly before i mounted the cylinder and when i but the standard 50cc back on it runs fine. the moped has good igniton and lets enough fuel into the cylinder.
Im running 15mm bing carburator and a 28mm exhaust.
and a Racing crankshaft in the motor.
Ive replaced all the gaskets in the motorblock. ive tried with "motorstart" spray and fiddling with the ignition timing and different jet sized alongside with powerfiler and standard filter. but without luck.
i hope some of you "mopedheads" are able to help me. ;)