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Buell Forum » Old School Buell » M2 Cyclone » Archive through November 08, 2013 » Help! oil on edge of rear tire « Previous Next »

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Guerrilla
Posted on Tuesday, September 17, 2013 - 06:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So, I recently traded a 55 international truck with a buddy for an M2. So far I have had to bypass the kickstand safety switch and just fixed a major oil leak from the front rocker cover. Thought I was in for some good fall riding after that. But, alas there is still oil leaking from somewhere, and it is getting on my rear tire.

The oil is only on the right (sprocket) side of the tire at the very edge. there is also oil on the shock, but not much anywhere else.

Anyone have any idea where I might be leaking? I have been looking around and cant find any obvious spots.
any help would be most appreciated
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S1owner
Posted on Tuesday, September 17, 2013 - 07:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

There is a hose that runs from the carb area up and out near the rear tire look aroud back there and see if you have a hose sitting there then re route it to a catch can I had the same issue on my S1
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Ratbuell
Posted on Tuesday, September 17, 2013 - 09:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Factory breather hoses run INTO the carburetor, so there shouldn't be anything in that area.

Could be rear shock lost a seal.

Could be oil pressure sending unit (front of engine, above/behind oil filter).

Could be oil filter.

Could be an oil line, under/behind the cam cover.

Hose it ALL down good with brakleen and let it dry. Make sure it all looks clean and dry. Then, go for a short ride - just enough to warm up the bike and get it weeping, but not enough to coat everything. Then, check it again.
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Kilroy
Posted on Wednesday, September 18, 2013 - 05:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Primary vent/breather hose runs up under seat and ends above your rear tire. Rarely get anything out of there unless you have a crank seal leak and you have engine oil flooding into your primary past the seal. Check your engine oil level and primary level to see if they are out of whack.
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Buellistic
Posted on Wednesday, September 18, 2013 - 08:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

For "SAFETY" you should run all your BREATHER HOSES to a CATCH CONTAINER !!!
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Buelljunkie
Posted on Sunday, September 22, 2013 - 10:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The oil on the shock...did it appear right below the drive pulley? You may want to pull the sprocket cover and make sure the seal is still on the output shaft. I had this symptom on my 95 S2. Found small amounts of oil on the shock, pulled the sprocket cover and found the bearing had spun and the race had started to walk off of the shaft. The needles had actually started to fall out of the race. The fiberglass cover was all that was holding the race in.
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Jumbo_petite
Posted on Monday, September 23, 2013 - 06:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

could also be an over filled oil tank . I had the same condition. DAHIK
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