How long will my spark plug last? - Kawasaki KLR 650 Forum
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post #1 of 4 Old 06-18-2010, 01:21 PM Thread Starter
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Join Date: Oct 2008
Location: Rupert, Idaho
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How long will my spark plug last?

I got 4500 miles on my '08, I'm conservative, I keep it below 5500 rpms, I like to use high octane gas, how long will the spark plug hold out?


Mike "Maddog" Mecredy
Retired U.S. Air Force
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post #2 of 4 Old 06-18-2010, 01:58 PM
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Location: Fort Sask , Alberta, Canada
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I've got 12,000 miles on the original plug and haven't thought about changing it. Spark plugs tend to be like oil - we change them too soon. In this case it's only one so pretty cheap. Just a pain in the butt to get at.

My Kaw Barn - 2004 KLR, 2006 Concours (sold), 1997 Bayou 400.

"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you shit your pants every now and then. "

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post #3 of 4 Old 06-18-2010, 02:10 PM
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Join Date: Feb 2009
Location: Redondo Beach
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Mike -

I'm coming up on 14K on my '08 with the original plug. Seems OK; last time I pulled (at about 10K) it it looked like new.

klr4evr's right, though. They're cheap. I keep meaning to buy one and put it in the next time I'm in there. Probably should have a spare in my kit anyway...


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post #4 of 4 Old 06-18-2010, 03:38 PM
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Join Date: Sep 2006
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I change em' every 10K on the KLR.. Almost to 20K, so I better get out there and spend another $2.75 for a plug..

Only reason I change them is that I do a 10K service to most of my bikes, changing all fluids and all wear parts.. My new chain and sprockets are in a box, right behind me.. I'll admit, they're replacing the originals at 20K.. I figure 20K is enough for the stock stuff.
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