I picked up a non running 88 hawk recently and am having trouble getting spark. Initially I put it on a battery charger/tester set to 12V HIGH/START to crank it over due to the dead battery it came with. It cranked over but the dash flashed like a Christmas tree and turn signal relay chattered like crazy while cranking. Battery positive terminal was shorted to ground until I removed turn signal relay. 5 Fuses rang out to ground, the ones fed with the R/Bl from the ignition switch, while ignition switch was’ON’ and kill switch in ‘RUN’. After unplugging the entire dash, front/rear turns, head/tail lights to try and find a short. I now only get a short on the R/Bl while I hit the start switch. And if I pull the ignition fuse (6) I don’t get a short on R/Bl when I hit start switch. I’m doing all this testing with the starter (+) and battery terminal (+) disconnected. So I’m checking downstream of the ignition fuse (6) which leads me to the Bl/W from IG2 that feeds the ignition coils. I had already checked the spark unit voltage multiple times also the resistances of the primary/secondary coils front and rear and pulse generators. ALL are within spec. But my spark unit voltage drops from ~ 12.9VDC to 12.1 right as I hit start switch even with starter (+) disconnected. I believe I need minimum 12.6? Do the Bu/Y and Y/Bu coming back to the spark unit from the ignition coils get grounded by the spark unit assuming the pulse generators are working properly? I know the pulse generators need the engine cranking to work but with the starter (+) disconnected should my spark unit voltage (Bl/W) be dropping so fast? Holy smokes this is a mess of text. This is my first bike and I’m grasping at straws at this point to get this thing sparking. Thanks to anyone who reads all this.
Nick
Nick
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