Near completion on my 1st build...well, it will never be completely "tweaked" I presume? I bought a 48cc BikeBerry FlyingHorse 2stroke, I cant over power the compression of the engine to free-ride (pedal) the bike? I've removed the spark plug & the drive gear/clutch catch? cover. Why am I not getting any free wheel, what am I over looking, not seeing? Thx ahead of time