LeftyKash
XS650 Enthusiast
Last week on my way back from AMA Vintage Days I pulled into a gas station, hit my kill switch, turned off the bike and filled up t he tank.
After gassing up the bike would turn over, but it wouldn't even try to start. The voltmeter off the key switch showed more or less 12v. I didn't have much for tools, but I took the kill switch out of the circuit, thinking maybe it had gone bad. No dice. I had recently switched to a gonzo TCI, as my OEM one was cutting out intermittently. Since the old one was still on the bike, I plugged it in. The engine tried to start, ran really rough, but wouldn't idle or rev up at all. I gave up and called a buddy with a truck to come get me.
Once I got home, I checked the plugs, they looked ok. Plugged in my spark checker, no spark.
Checked resistance on my coil secondary ~24k ohms ok.
Checked resistance on coil primary 2.8ohms OK,
Checked the pickup coil, 750 ohms on each side, 1500 ohms between them. OK.
On a whim, I opened up the LH cover, and found that the magnet that the PO had put on the rotor had given up the ghost.
I'm not 100% convinced that it is the only issue, but once I wash all the Vintage Days dirt and mud off the bike, I'll pull the rotor and repair.
It was a hot weekend and I'd been riding the bike a lot. It ran perfectly all the way to the gas station. I'm guessing that once I stopped to gas up after that long ride, the adhesive picked up just enough heat to let go. Who knows for sure though?
After gassing up the bike would turn over, but it wouldn't even try to start. The voltmeter off the key switch showed more or less 12v. I didn't have much for tools, but I took the kill switch out of the circuit, thinking maybe it had gone bad. No dice. I had recently switched to a gonzo TCI, as my OEM one was cutting out intermittently. Since the old one was still on the bike, I plugged it in. The engine tried to start, ran really rough, but wouldn't idle or rev up at all. I gave up and called a buddy with a truck to come get me.
Once I got home, I checked the plugs, they looked ok. Plugged in my spark checker, no spark.
Checked resistance on my coil secondary ~24k ohms ok.
Checked resistance on coil primary 2.8ohms OK,
Checked the pickup coil, 750 ohms on each side, 1500 ohms between them. OK.
On a whim, I opened up the LH cover, and found that the magnet that the PO had put on the rotor had given up the ghost.
I'm not 100% convinced that it is the only issue, but once I wash all the Vintage Days dirt and mud off the bike, I'll pull the rotor and repair.
It was a hot weekend and I'd been riding the bike a lot. It ran perfectly all the way to the gas station. I'm guessing that once I stopped to gas up after that long ride, the adhesive picked up just enough heat to let go. Who knows for sure though?
