Slow/Hard Cranking - Good Battery - 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 6 Old 12-22-2008, 08:02 PM Thread Starter
Join Date: Jun 2008
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Slow/Hard Cranking - Good Battery

I bought my 2006 KLR with 610 miles on the clock. It had been sitting for 2 years so the carburator was clogged and the battery was weak. I cleaned the carb and replaced the battery with a high performance Yuasa AGM type. I have never had enough power to start the bike in gear because the clutch drags a bit when cold. I just start the bike in neutral, let it warm up, put it in gear and go. I have noticed that the battery doesn't get an adequate charge from the charging system to keep things topped of - so I thought. I have been keeping the bike plugged into a battery tender plus so the battery stays full up. Today, I tried to start the bike in neutral, etc. and it acted like I had a really weak battery. My first thought was that the tender was bad, but I checked the power on the battery and even after a bunch of cranking, it still had 12.7 volts. It seems that my battery isn't the issue. When I was riding the other day, I stalled the bike on a hill and it wouldn't turn over fast enough to start. I pushed the bike a while and tried again and it fired right up! I'm beginning to wonder if I have a compression release issue or a bad starter or something else. The starter is pretty new (1200 miles) and clean. I have ridden through a bit of water, but wasn't this bike designed for that?

Any Ideas?
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post #2 of 6 Old 12-23-2008, 12:15 AM
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Join Date: Sep 2008
Location: Ketchikan Alaska
Posts: 147
After riding check your battery voltage to determine whether or not you have a charging problem first.
If the battery is getting charged then I would look into the starter is it a kawasaki starter or aftermarket ?
Check all elect. connection's ground from battery and also positive cable from batt to silenoid and then to starter.

Last edited by motorheads5; 12-23-2008 at 12:18 AM.
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post #3 of 6 Old 12-23-2008, 11:22 AM Thread Starter
Join Date: Jun 2008
Posts: 11
I doubt the charging system is the issue now because I had a fully charged battery having trouble turning the engine over. The starter is the original equipment. Are there better aftermarket starters to be had?
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post #4 of 6 Old 12-23-2008, 08:25 PM
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Join Date: Sep 2006
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What weight are you running for oil? A thinner oil (or synthetic) might help a great deal..
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post #5 of 6 Old 12-23-2008, 10:06 PM Thread Starter
Join Date: Jun 2008
Posts: 11
I'm a bit embarassed It turns out that my battery would get to 13.99 volts but, it had no staying power. I took it back to the dealer who did a load test and told me the battery was a Big Zero. They charged up a new one and sent me home with it at no charge

Paper, I use 10w-40 Amsoil for the exact reason you mentioned.
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post #6 of 6 Old 12-23-2008, 10:13 PM
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Join Date: Sep 2006
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It's amazing how often batteries are the reason for issues like this.. Simple things first.. No spark, change spark plug.. Slow to start, and it's the expensive new battery..

Glad you had the battery checked!! It's nice when you don't have to pull your hair out trying to figure out a problem.
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