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Need Help: 98 CBR 900rr electrical issues. (Again)


DerekClouser

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So about a month ago I was having electrical issues (battery wasn't staying charged) - replaced stator, rectifier, & battery.

Rode about 1100 miles (including epic ride), no issues til last night. Battery is dead again.

I will be running voltage tests (was charging battery last night) to make sure the stator/rectifier are working. If they are, what issues would you suggest me looking into next? I know I am having good connections between the positive and ground to the battery as well.

If the stator/rectifier are working I guess the next step would see if I have a short somewhere that's draining the battery.

Any other ideas?

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  • 4 weeks later...

Pull all the fuses and measure:
Measure from the + terminal of the battery to ground, key off.
Measure from the + terminal of the battery to ground, key on.

Replace the fuses one at a time and:
Measure from the + terminal of the battery to ground, key off.
Measure from the + terminal of the battery to ground, key on.

This will tell you if you have a short and which side of which circuit it is on.
Yea, it's slow and cumbersome but it is definitive.

Get a wiring diagram for your bike and post it to this thread.

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