It's been a while since ive been here since its been winter. I've got my neighbors rider here and im having a problem. Mechanically the engine is sound, awesome compression, turns over smooth, brand new carb (old one was rotten to the point where a rebuild wasnt worth it), new starter and battery. it cranks great...but (always a but) i dont have enough spark to get it to fire. its fired sporadically a few times during cranking, but never more than one pop. theres enough spark to cause a good jolt, but not enough to jump any kind of gap at all. theres a small (2" by 3" by 1/2" thick, i think its a rectifier/voltage regulator) box on the right side of the engine (sitting on the machine) with 3 wires that plug into it from under the flywheel. im not exactly sure what that does but it looks important. if anyone could give me any insight into this or assistance i would be highly appreciative. its a sears model # 917 255350 with a engine # 142 3296042. i used to have acess to service info and cross reference sheets to translate from sears to tecumseh engine numbers. this one has me stumped, im not sure whats going on to cause such a weak spark other than dirty/bad points and condenser system under the flywheel. but i really dread having to pull that. what else should i check?