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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 06-29-2009, 06:47 PM Thread Starter
 
Join Date: Jun 2009
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Thumbs up Have you seen this before

2007 KLR :Loaded the bike down with tent and all and headed out for camping trip. We road for about 3 hrs and came upon an amazing view off of the trail. Needless to say that with such an incredible view I left the key position on for about 15 minutes draining my 8-10 month old battery. Not enough juice to start it so I bumped started it and road it for about 2-3hrs above 3000rpm. Turned it off and click...click. It didn't charge it at all. I spent the weekend bumpstarting it and riding all weekend long up in timbucktoo. I would think that a stock charging system would charge a good, but low battery. When I got home I through it on the charger for about 3 hrs and charged it to almost 13 volts.
Bike starts right up but....will it stayed charged.....Any ideas. Can I test the charging system by disconnecting the battery while running and see if the bike stalls or could that FRY something?
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post #2 of 12 Old 06-29-2009, 06:59 PM
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Do me a HUGE favor and tell me that you checked the water level of the battery???

KLR's are notorious for boiling the water out of a battery. They should be checked and filled once a year, minimum.. Check your water level and fill if it's low.. I think you'll find it easier to start and much better battery life when full..
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post #3 of 12 Old 06-29-2009, 07:15 PM Thread Starter
 
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The battery was full and acts great off a charger.
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post #4 of 12 Old 06-29-2009, 07:16 PM
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Now you got me confused.. The KLR's charging system isn't great, but it's not bad, either.. Not sure how much riding would be required to get the battery back to cranking power, though..
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post #5 of 12 Old 06-29-2009, 07:18 PM Thread Starter
 
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Oh yeah, one more thing. After I charged it I took the battery to the local battery store and had it load tested. He said it was good but needed a little charging. I was really hoping the battery was shot.
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post #6 of 12 Old 06-29-2009, 07:26 PM
 
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Maybe didn't drive it long enough to have enough charge in the battery to restart your bike especially if the battery is a little old (slowly losing charge over time when sitting).
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post #7 of 12 Old 06-29-2009, 07:36 PM Thread Starter
 
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All in all about 20hrs of riding on a dead battery that charged in about 3hrs on a charger.
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post #8 of 12 Old 06-29-2009, 10:35 PM Thread Starter
 
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Can I check this off of the battery terminals..If so my volt meter showed 12.30 volts before startup and off of charger. After startup voltage slowly dropped down ultimately to 11.87 volts with about .15 volts fluctuation from various accessories. i.e fan,turn signals-etc. I also kept a constant 3500 rpm with very little gain in voltage..maybe an increase of.05 or so. With bike running my meter on the battery terminals is about 11.87. Turn it of and it increases to about 12.10? Maybe I cant test voltages at battery terminals?
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post #9 of 12 Old 06-30-2009, 11:29 AM Thread Starter
 
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Inadequate Charging Voltage

Ok, I just checked voltage at the terminals with battery disconnected and I have 7.5volts at idle. At 3500 RPM voltage drops down to 3.5volts. Obviously not even remotely close to where it needs to be at 13+. Any thoughts are welcomed.
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post #10 of 12 Old 06-30-2009, 07:38 PM
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Frank,

Whoa! I just read your last post, a battery probably isn't your answer.

I bought an Odyssey dry cell and have no problems. I have left my hot grips on for an hour and had a good start. Batteries Plus stores have dry cells around $79 or you can throw down $120 like I did.

Spinning / flashing LED tail light;Dished seat;Nerf Bars;Panniers and rack;Aluminum skid pan;Master cylinder guard;tall shield;Heated gel grips;Acerbis Rally Pro guards with spoilers;Superbike low front fender;Doo upgrade;16T counter sprocket; K&N filter and box mod;GPS mount;Dash with voltage meter & clock;1" raising links;T bypass mod;anti vibe bars;anti vibe mirror mounts;Euro light switch; Aluminum choke leaver;new dry cell Super battery;Mefo Expolere's;New bearings and races

Last edited by Hardyreels; 06-30-2009 at 07:40 PM.
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