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Just came back from holiday and fitted two new 6V coils, HT leads plus caps. Went for a run.
The ten mile commando is now a three mile Commando... Did a total of ten miles and it spat/backfired three times before finally conking out. I then let is stand two minutes and turned the reserve petrol tap on (it shouldn't have needed it as I recently put a new main tap on the bike and know the fuel was above the tap inner pipe) and it started. As I was 400 yards from home I didn't test it further but rode it home to ponder. The bike feels weak at the bottom end as if it's weak on fuel yet the plugs have been sooty as reported. Perhaps that's just when it misfires that is causing the sooty plugs??
One thing that I'm not happy with is the fuel pipe routing of the new Mikuni I fitted as I have the tee piece below the carb body requiring the pipe to the carb to then go back upwards to the carb befre going back down again into the carb inlet. Air lock perhaps? I guess as the fuel lowers in the tank the hydrostatic head decreases which won't help? Does anyone have a picture of their fuel line set up to a single Mikuni as the carb entry is at the same level as the base of the fuel taps hence why I routed it the way i did?
