I purchased a raw 66/80cc motor last weak and finally got everything connected today. The motor turns on but has no power to actually push me anywhere. I have everything on correctly. The only thing I can think of that may be the problem is that the spark plug cap broke so i just cut it off, stripped the end of the wire and wrapped it around the tip of the spark plug. Like i said, the engine turns on, but doesn't even have enough power to push me on full throttle. any ideas?