ignition box

  1. T

    No spark on the spark-plugs

    Hi! I bought a Yamaha XS400 12e 1983 last year and it was running fine but needed service and new sealings in the front fork.. The old battery was not keeping the power so I had to buy a new one but when I tried to start the bike it will not start...? The starter is running fine and I've checked...
  2. A

    HELP - Right cylinder not advancing...

    Hey guys. So I just bought a XS 400 SECA from 1983. When I bought the bike it hesitated in the mid-range acceleration. I figured that it was just a carb adjustment. But no! After checking the spark plugs I found that the right sparkplug was very sooty (running rich) and the left was perfect...
  3. FarmBoy72

    Electronic Ignition Issues, Troubleshooting, and "refurbishment" (1 cylinder misfires and crackling)

    Hello guys, A few years ago when I switched my 78 from points to TCI I replaced all of the electrolytic capacitors in the ignition. These type of capacitors only have about a 10-15 year lifespan sometimes so its a good measure to replace them right at the start. After doing so the left...
  4. halfbreed4lyfe

    Ignition unit testing

    is there anyone in the Midwest(Chicago land) that wouldn't mind me sending them my ignition unit to test in their bike. I'm told the only way to test it is on another bike. My coils are good plugs and wires all good as well. I only get spark on one side. Swapped coil wires and spark switches to...
  5. N

    TCI ignition unit [is it possible?!]

    sorry if there is already a thread on this topic but I was looking through the threads and ive only encountered how to wire a tci ignition unit. my question is... Is it possible to remove this unit from the bike and still run? im pretty sure the ignition unit/box is what it is called. If not I...
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