odd oil leak - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 3 (permalink) Old 10-04-2011, 08:30 PM Thread Starter
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odd oil leak

Hey guys, i just took a decent road trip on my bike and discovered an odd oil leak. oil seems to be pooling in the rear, right side spark plug recess. I have yet to be able to wrench on it, seeing as how i just relocated for the navy, and it is my daily vehicle. The bike runs just fine, and doesnt blow smoke out of the tailpipe, so its not in the combustion chamber, but unless it's a damaged block, i dont really have any ideas. if anyone else has had this happen, any insite would be greatly appreciated. by the way, i am now riding in san diego area, so any good local info would be appreciated.

98 VN750 with ears shaved, K&N's, Dial a Jet, and yes, bags when it's practical.

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post #2 of 3 (permalink) Old 10-04-2011, 10:58 PM
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There are two o-ring seals on the spark plug retainer tube, one on top, one on bottom. Check them first. Also check the tube for any hole worn by the cam chains.
The rear axle nut can be used as a 27mm removal tool for turning the retaining tube out.

Picture in this diagram:
http://www.bikebandit.com/houseofmot...m4555#sch47838
Retaining tube #92066
O-rings #92055 and 92055B

Hope this helps. Report back and let us know what you find.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

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post #3 of 3 (permalink) Old 10-05-2011, 03:56 PM
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I would also suggest that the drain from the spark plug well is clogged. Otherwise that oil would be making its way to the front of the engine where the drain exits and be showing as a leak there. Find the exit hole and stick a wire up it to clear it.
Cheman

Opps, you said the rear cyl. I guess that means the drain would be in the back? not the front?! Sold my vn750 a year ago so cant go look

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Last edited by Cheman; 10-05-2011 at 04:10 PM.
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