I have a 1976 CB500T that has developed a short on the right cyliner. When I can get the bike to run (on 1 cylinder) there is no flash from my timing light from the right spark plug wire. The left side is ok. This problem came out of nowhere when I was in the process of restoring the bike. Since I was going to replace the entire ignition system I figured the problem would get fixed (I figured it would be a bad wire coming out of the coil). After new Dyna coils, new spark plug wires, new points, new condenser, battery, starter solenoid etc. the problem is still there. What's really weird is that the short comes and goes. Sometime the bike will run fine, then wham, the right cylinder goes dead. When the bike was running, I had a friend go back over the ignition timing. He declared everthing in order, point gap ok, plugs ok etc. The next day same problem back again. He swore it was a bad condenser so I located a brand new Honda condenser and put it on. Guess what, right side still dead. I'm at my wits end. The last thing I did was to check the continuity of all the wires going to the coils. They all checked out ok. My local repair shop just cleaned out the carbs and told me I was imagining things, there was nothing wrong with the spark. I rode the bike home and the next day the same problem surfaced. Has anyone run into this problem? If can just find this gremlin I'm back on the road. Thanks in advance for any help. Sorry for the long post but I figured all the relevant facts would help.
Keith
Keith