Burning out fuses - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 12 Old 01-27-2017, 08:51 AM Thread Starter
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Burning out fuses

I just got an 88 klr 650 all original and running great but with weak battery. I replaced the battery and the bike would not turn on when I turn the key so I look to the two glass fuses under the seat and sure enough one was blown. I had to replace the original fuse casing because the wires broke while removing the fuse so now I have two inline fuses in the plastic spring cases but when I go to put in the second fuse in the yellow wire it burns out immediately. Is it possible to overcharge a battery? Also I switched up to 15 amp fuses instead of the 10 per recommendation on this site.
What happened?

Last edited by MikeyWayne; 01-27-2017 at 09:50 AM.
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post #2 of 12 Old 01-27-2017, 10:10 AM
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I think your main fuse should be 20 amps; 15 amps remains good for your headlight circuit.

Continuously blowing your main power fuse suggests a short-circuit in your wiring; a "hot" wire erroneously connected to ground. Frayed wiring harnesses often produce this situation.
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post #3 of 12 Old 01-27-2017, 11:06 AM Thread Starter
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Awesome thank you for the response! I'm a total noob, does that mean I need to check along the entire wire system, or are there likely shorting points? Probably something I fudged changing the battery with 30 yr old corroded wires ay?
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post #4 of 12 Old 01-27-2017, 11:40 AM Thread Starter
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Holy crap I just realized the battery they sold me at Napa has positive and negative terminals reversed does this make a difference?
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post #5 of 12 Old 01-27-2017, 11:59 AM
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Quote:
Originally Posted by MikeyWayne View Post
Holy crap I just realized the battery they sold me at Napa has positive and negative terminals reversed does this make a difference?
Did you expect anyone here to tell you it doesn't matter?

Get the correct battery installed.

“Take the risk of thinking for yourself , much more happiness , truth, beauty, and wisdom will come to you that way.” Hitchens
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post #6 of 12 Old 01-27-2017, 12:24 PM
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Quote:
Originally Posted by MikeyWayne View Post
Holy crap I just realized the battery they sold me at Napa has positive and negative terminals reversed does this make a difference?
Most likely you will need to replace the Voltage Rectifier/Regulator because of blown diodes in the rectifier now. Other wise your charging system will not work. 14L-A2 is the proper battery number with + terminal on the RH rear corner.

The mechanic performing the work always needs to double check as to correct parts purchased. Sorry.
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post #7 of 12 Old 01-27-2017, 01:03 PM
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Generally, red wire goes on positive (+) battery terminal.
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post #8 of 12 Old 01-27-2017, 02:42 PM Thread Starter
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Yep I was just lazy and trusted Napa. Thank you very much for the rectifier tip also. charging correct battery now. Thank you for replies
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post #9 of 12 Old 01-27-2017, 03:47 PM
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Without thinking deeply into it I will say if you are really really lucky, that blown fuse may have protected the regulator/rectifier.

Last edited by GoMotor; 01-27-2017 at 03:50 PM.
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post #10 of 12 Old 01-30-2017, 08:46 AM Thread Starter
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I believe it did since I haven't had any starting issues. Thank you
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