Joined: Nov 2012
From: Los Angeles
I Ride: 1997 Kawasaki ZX 11 D5
Strange Oil Leak...
I recently purchased a 1997 ZX11 (D-model) from my friend, who was the original owner. While this motorcycle was well maintained and garaged it's entire life, my friend owns six motorcycles and this one just sat in the garage for about five years. When I purchased it, he'd been riding it again and he gave it a full overhaul before I took ownership. It had only 14,000 miles and in six months I'd added four thousand miles. It ran great and I had no problems.
But recently I rode over a metal track for a gate to a parking lot and I bottomed out and dented the exhaust tubes on the bottom pretty good. The mechanic, who's serviced this bike since it was new, found out he could get a replacement exhaust (Vance & Hines S2) for only $300. So I scheduled a time for him to replace my exhaust. We did an oil change, too (Motul 300V) and when I picked it up, the bike ran better than ever.
However, while cleaning the bike afterwards one day, I noticed a lot of oily "gunk" all around where the shift lever enters the motor. Underneath there was significant evidence of dripping oil. So, I took the bike back to my mechanic.
He's had it three times now, replaced every seal (except one that he says would require removing the motor), but it still leaks, as shown in the attached pictures, after just a few hundred miles of riding.
Does anyone know what's happening here? Where this leak is coming from? My mechanic said he tried to buff out some pitting on the shift lever. He said he pushed the seal in as far as he could, to avoid the pitting. Could this all just be coming from the pitting? I have pictures, but they all seem to be too large to upload here.
Thanks for any advice anyone has. My mechanic appears to be stumped.