- Nov 8, 2009
I have a 1974 850 commando which has been running horrible when it does start but refuses to start most of the time. Ive just rebuilt the engine fitting a new connecting rod and oversize pistons. I had to pull start it just to get it running and then I set the ignition timming with a stroboscope and then the stroboscope itself stopped flashing and the bike started to misfire right after I set the timming in both cylinders perfect. The bike tries but will not start by kick starting and it has a weak blue spark on both sides even after I replaced both points and both condensers. I cant think of anything else that is wrong so if someone could help out that would be fantastic, thanks.