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 tried with "motorstart" spray and fiddling with the ignition timing. but without luck.
i hope some of you "mopedheads" are able to help me. ;)