PDW Oil Flow Mods, order of importance. - Page 12 - 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 #111 of 111 Old 03-12-2018, 10:49 AM
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Originally Posted by pdwestman View Post
The Additional 'O'-ring which we install around the face of the steel end cap is what separates/seals the dirty oil into oil filter cavity.

The outer 'O'-ring still seals the circumference of the clean oil pathway.

Both 'O'-rings are the same original KLR part #671B2555.
Or, I presume, the FREE FRAM 6070 O-ring!

Thanks for the explanation. The extra "quarantining" of unfiltered oil may add thousands of miles of service life before major overhaul.

I have been somewhat conditioned by my Honda experience, wherein NO replaceable oil filters existed on some small engines. Others with the skills, tools, and time might profit from the 100 % filtered flow mod. Respect for the diligence and persistence involved in developing the oil flow mods.
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