Is the alternator charging the battery? Should be in the 13.5 to 14.1 volts with engine running at 3000 rpm. ?The original alternator rotors were prone to throw the winding wires of the solder connection to the commentator, could be diode board also. ?Unlikely electronic ignition unless it has a dead short in it. ?Also all ground wires including the main ground on the frame under the bolt that holds the left coil on. Ground wire from battery to 10mm transmission breather bolt (right below speedo cable). Bolt could be lose or stripped.
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Has anyone had any experience with a Mortek electronic ignition system? My '76 R90S has one and the bike electrical system is screwed up somehow. First the headlight did not work. Then while riding with the parking light only on, after about 45mins the bike died and would not start. Finally got it going rough and rode it home after a few tries and now starter does not work. Lots of clicking only. Battery is new. Maybe it's the diode board? All wiring on the bike is as good as new.. Thanks for any help! Steve in Maine
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Steve
