lights dimming - 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 4 Old 03-03-2010, 07:07 PM Thread Starter
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Join Date: Jan 2010
Posts: 19
lights dimming

Hello, everyone , I am a new player at this , so bear with me,, My problem is when I start my bike (1999KLR) then turn on the lights the headlight looks good , and bright, but when I rev up th engine is gets dimmer,, once it dims it does not get more , and more dimmed, just the intial time,, any help would be appreciated,, thanks in advance Scott in Prescott,Az..
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post #2 of 4 Old 03-03-2010, 07:30 PM
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Join Date: Jun 2008
Location: Central AZ
Posts: 177
Hey Scott..sounds like you need to check the charging system.

I would start with the battery, water level ok? Next the cable connections to the battery, remove and shine up all 4 ends and the spot they terminate to.
Replace and snug them up good.

Still a problem?, put your volt meter accross the battery leads and note the voltage not running. 13.5v? You're good, lower not good, needs a charge. Start and note the voltage as you rev up the engine..does it go up? If the volts don't rise and you have water and clean connections your charging system may be in trouble.
Let us know what you find and we'll go from there.

If you need some hands on, let me know, I'm near Mayer.

Don H
Spring Valley AZ
'03 KLR 650/DS sidecar
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post #3 of 4 Old 03-05-2010, 08:46 PM Thread Starter
1st Gear
Join Date: Jan 2010
Posts: 19
Ok,thanks , I will check the voltage, thanks again
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post #4 of 4 Old 04-25-2013, 03:07 PM
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Join Date: Mar 2013
Posts: 19
KnightRider - did you ever find the solution to this? I'm having the very same symptoms on my 86 kl600. Thing is, it never had a battery, but when I first got it the headlight worked nice and bright the way it should, so it seems unlikely that a bad battery is the problem.
I also swapped out the R/R with no change.
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