Black Plug / Oil Burning Question - Kawasaki KLR 650 Forum
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post #1 of 7 Old 03-09-2013, 04:03 PM Thread Starter
Join Date: Feb 2013
Location: Timmins ON Canada
Posts: 13
Black Plug / Oil Burning Question

Hey guys,

I changed my spark plug and oil today as well as installing the KLX needle. My bike only has 1991Km on it and was a completely stock 08 when I bought it. I haven't driven it much yet since its winter so I can't say whether or not it's an oil burner but from what I've seen today I'm guessing it is. There was about .5L of oil missing when I changed the oil and the plug looked like this:

As it was stock I believe the bike should have been running lean but who knows. If shes an oil burner is the black plug an indicator? Also I'm thinking that is a lot of oil missing but I won't be able to tell for sure until I start riding it I suppose.
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post #2 of 7 Old 03-09-2013, 04:13 PM
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By Kawasaki standards, that's not an oil burner, as it's a quart/liter in 2400 miles.

You don't get to join the club until you get to a quart in a thousand.

The plug doesn't look too oil fouled. Were I you I'd keep a very close eye on the oil (check it every time you start the bike) and carry a bit of oil if need be.

The fix is a 685 kit, and that will pay for a lot of oil.


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post #3 of 7 Old 03-09-2013, 07:08 PM
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Hi KiLR!
Plug looks like the engine was running rich. Were you driving with the choke on? Or maybe your filter needs cleaning.

It's not a Tractor....It's a LOCOMOTIVE!! Chugga Chugga
Woooo WOOOOO!!!!!
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post #4 of 7 Old 03-09-2013, 07:25 PM
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Location: Alberta, Canada
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I agree, the plug looks like it's running rich. Oil fouling is much thicker and wet/gunky. Dry black is usually gas. As far as the oil consumption, that's not at all uncommon on the KLR's, especially the gen 2's. I check mine at every fuel stop and try to keep it below 5000 rpm.
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post #5 of 7 Old 03-09-2013, 07:43 PM Thread Starter
Join Date: Feb 2013
Location: Timmins ON Canada
Posts: 13
Thanks for the reply's. I can't say for sure how the bike was being driven or maintained before I bought it but it was stock jetting and the plug was still in the pilot screw hole. But I suppose it's possible that it was set rich from the factory. Either way I now have a UNI filter installed, stock exhaust modded, and the KLX needle in so I will start monitoring this season, hopefully with some tinkering she will run great. I rode her a couple K's up the road today and she seems to be running well, it would be nice if the rest of the damn snow would melt so I can get her out for a real run.
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post #6 of 7 Old 03-09-2013, 09:52 PM
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Join Date: Oct 2006
Location: Pefferlaw,Ontario
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How smoky is the tailpipe? If you wipe your finger in it does it come out completely black? Is it dry black or wet black? On the left side of the carb, is the choke pluger fitting screwed all the way into the carb body? Is the choke plunger being held out by anything? When the bike is idling, what does the exhaust smell like? Does the fumes burn your eyes as in a very rich mixture of unburnt fuel? When you burp the throttle any blue smoke? Did you rebuild the carb as in a complete tear down to clean it? It just may be gummed up from sitting with stagnant fuel.....all things to concider....
I was in your neck of the woods was ay too nice not to be on two wheels!!!
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post #7 of 7 Old 03-10-2013, 11:12 AM
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Join Date: Mar 2013
Posts: 35
Sea Foam and other additives will decarbon and clean carb passages out to a degree.
It will also clean the plug to the point of almost looking like someone bead blasted it.

Carbon is bad.

If you do decide to do additives,
do it right before your oil change
not right after.

Carbon left in the crankcase scratches the cylendor walls etc.

It does not look oily enough to me,
like someone said
could be choke ran too long or
chugged around too much.

Now that you have added a jet
the base line now has a varaible IMO.

A bead blast or new plug and reinspection after driving should have been in order first.
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