I started work on my second bike a few weeks ago, still not decided what to do with it yet.
Just thought I’d put it back together after stripping parts from it over the last few years, every time I had a problem with first bike I’d pull something off this one, even if it was only to diagnose a problem then not put it back, anyway refitted the carbs, coils, cdi rectifier, fueltap, also managed to get the front brake unseized. Tried to start it today and it fired up fine except only on one cylinder, I tested the coil by switching it with the other one then tried to trace the wires back 1st wire only went back along the loom a short way before it split back to the other coil so my thinking is its ok up to that point as other coil works fine so put in a bridge wire between that point and the coil, no joy so traced 2nd wire back to cdi tested this on other bike it works fine so put bridge wire between cdi and coil still no joy, on to third wire which went to multi connecter behind the headlight then on to r/h switchgear
So tried a spare switch and another bridge wire to the coil, still no spark on the first cylinder, well I do get maybe one weak spark now a again which it was doing before I started tracing back. I have cleaned every connection and the rest of the electrics are all working . I think a bit more head scratching before I get to the root of this one, any ideas anyone?