Author Topic: Completely stumped on electrical problem  (Read 1062 times)

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Offline Wisohc

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Completely stumped on electrical problem
« on: June 16, 2015, 04:36:09 PM »
So I got my bike up and running (78 cb750K) and things were going great then I noticed after riding for an hour or so I had to kick start it to get running again. I read everything I could on the forums and figured either I didn't have it revving high enough to charge or there was a problem with my charging system.

Today after charging the battery overnight then letting it sit for 2 hours I checked it and it was reading somewhere around 12.8. I put it in the bike and it fired right up. I then checked the charge I was getting when revving and these were my results:

Immediately after starting at idle I was getting 12.5
When I would rev and hold it around 4500 rpm I would get up to 16


I immediately backed off when I saw it get higher than 15 and just let it idle some more. When I tried it again after the bike had warmed up I could rev it as high as I wanted and it wouldn't go past 14.8.

I then shut the bike off to disconnect the multimeter and when I went to start it again just a few minutes later I wasn't getting power. The battery is still reading a good charge and none of the fuses are blown. Can anybody shed some light on this? I have no idea what happened.


« Last Edit: June 16, 2015, 04:41:54 PM by Wisohc »

Offline Wisohc

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Re: Completely stumped on electrical problem
« Reply #1 on: June 16, 2015, 05:13:55 PM »
Just came to say I figured it out and saw your reply. It was the ignition switch. I jumped the red wire to the black and everything came to life.