I am nuking out the problems with my build. I have just put on a Grubee skyhawk 66cc kit on my Schwinn cruiser bike. I had a problem with it breaking the chain. We discovered that the engine had shifted slightly. So we removed the rubber tape from the rear motor mount, repositioned the engine and tightened everything back down. Now, the chain isnt breaking but its coming off the sprocket to the outside of the sprocket. I can get it started and go about two blocks till it happens. I assume this is an alignment issue between the two sprockets. So is there a chain aligner that I can put on or what?