jcorney
77 XS400
A couple weeks ago I posted a video of an engine knock I had in a newly rebuilt motor in my 1977 XS400. It was determined that there was end play in the crank that was causing the knock. At some point I may rebuild this motor with new bearings, but for now I just want to ride the bike!!! So I picked up another motor. This motor has electronic ignition. The motor did not come with a wiring harness. I do have a harness from a 3rd motor I have, but I don't know if it is a points harness or a TCI harness. My question is, should I pull the head off my motor with the points and set the motor up to use points (which I know works properly) or try to get the TCI working? What do you think would be harder? I don't really want to pull the head, but I think the wiring could be a nightmare. The wiring harness on the bike has the pink coils for the points and the wiring harness I have in a box has the gray ones with the screw on wires. Not sure if that means it is for the TCI or not. If that harness is for a TCI motor that may be easier??? Does anyone know how I can tell? Then again, changing the harness out on the bike would suck too. Last question would be if I could put the points where the TCI unit is without changing out the head? The cover of course has the brass plug that I would have to figure out how to remove.
As you can see, I am at a loss as to what I should do. My gut says change the head, but...... I don't know!!
As you can see, I am at a loss as to what I should do. My gut says change the head, but...... I don't know!!