BrookieDC
XS650 breaker
Hello everyone,
I'm in the middle of a complete rewire and am completely stumped. I just bought a Pamco system with E-advance, and I'm using the PMA charging system I put in about a year ago. I have rewired the ignition and charging twice to troubleshoot the issue, and I have narrowed it down to the timing (I think). As the thread title implies, my spark plugs are firing very well, and they are wet when I pull them (so there is fuel... I think).
Charging system checks out fine. Re-gapped valves, adjusted cam chain. Only the charging and ignition systems are wired currently - no lights, signals, etc.
So since the spark is there, why isn't it running? This is a new ignition system. When I kick the bike over, sometimes I get a backfire after the motor stops spinning. I rotated the Pamco plate from one extreme to the other and everywhere in-between and it's still not starting. My feeling is that somehow the timing is way out of phase and is firing before there's fuel in the cylinders, or something like that.
It's an '83 SJ with all of the extraneous relays/safeties removed. It developed a glitch this spring that I thought was a ground gremlin but later determined to be a bad Boyer ignition. It would run fine for a mile or so, then it would only be able to run at idle speed - any added fuel would make it want to die. After I rewired, it ran just fine for about 10 minutes. The next time I started it, the same problem resurfaced. It would idle ok but die with any extra fuel. Then it would go back to running fine, and on and on. With the new coil and good charge system, I surmised that it was a faulty ignition and ordered the Pamco.
So I think it's a timing issue, but I don't know where to begin. Could the plate be backwards? I am one of the guilty ones who took the cover off the e-advance unit to inspect it and realized that I hadn't noted the orientation of the board to the cover, but the thread on this site says that the side with the microprocessor goes toward the sensor, and the side of the board that has the regulator/transistor goes towards the coil. Is this incorrect?
Thanks...
I'm in the middle of a complete rewire and am completely stumped. I just bought a Pamco system with E-advance, and I'm using the PMA charging system I put in about a year ago. I have rewired the ignition and charging twice to troubleshoot the issue, and I have narrowed it down to the timing (I think). As the thread title implies, my spark plugs are firing very well, and they are wet when I pull them (so there is fuel... I think).
Charging system checks out fine. Re-gapped valves, adjusted cam chain. Only the charging and ignition systems are wired currently - no lights, signals, etc.
So since the spark is there, why isn't it running? This is a new ignition system. When I kick the bike over, sometimes I get a backfire after the motor stops spinning. I rotated the Pamco plate from one extreme to the other and everywhere in-between and it's still not starting. My feeling is that somehow the timing is way out of phase and is firing before there's fuel in the cylinders, or something like that.
It's an '83 SJ with all of the extraneous relays/safeties removed. It developed a glitch this spring that I thought was a ground gremlin but later determined to be a bad Boyer ignition. It would run fine for a mile or so, then it would only be able to run at idle speed - any added fuel would make it want to die. After I rewired, it ran just fine for about 10 minutes. The next time I started it, the same problem resurfaced. It would idle ok but die with any extra fuel. Then it would go back to running fine, and on and on. With the new coil and good charge system, I surmised that it was a faulty ignition and ordered the Pamco.
So I think it's a timing issue, but I don't know where to begin. Could the plate be backwards? I am one of the guilty ones who took the cover off the e-advance unit to inspect it and realized that I hadn't noted the orientation of the board to the cover, but the thread on this site says that the side with the microprocessor goes toward the sensor, and the side of the board that has the regulator/transistor goes towards the coil. Is this incorrect?
Thanks...
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