Hey guys I’m new to this forum. I have a problem. Bought a 87 Foreman 350 off a farmer which ran when I got it. Had to replace frame so transferred all to a new/used frame and a buddy of mine took wiring off and installed it back on rebuild. I’m trying to start it and getting no spark. Replaced solenoid and fuel pump relay because I grounded pump when I tried starting it one time by accident and I thought it shorted the relay. I did find that the blue/yellow wire from pulse generator does not go to anything on harness and can’t find where it would go, my buddy that helped didn’t remember if it went to anything. Tested wire and there is power from it when cycling motor. Saw where a blue/yellow wire goes into cdi for pulse generator so I jumped wire since I can’t find where it plugs in and got spark. Motor backfired then puffed a little black smoke which it puffed when it ran. Thought I might mess it up so took jump wire off. Any ideas I’m getting pretty frusrated been a headache since I bought it but to much invested to give up now. Thank you.