ignition problem

Novice mechanic here I’ve done some electrical work - rebuilt light harness (brakes, backup, turn signals). My ignition works sometime but 50% of the time I get no power to the starter - nothing happens. When it does work I feel it is weak. So I had a bypass button installed and it works every...

My72 fj40 will not start. It did start after winter storage but would run maybe on 4 cylinders. I came our of it after a short time. This actually started last fall before I put it in storage. Once the engine was warmed up , it would start and run fine. Now it will not start. It did briefly ...