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Air goes in and out but mostly out. Your engine doesn't have that many hours so you should have some blow by. When engine is running you should be able to feel air coming out breather hole in the air box .


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Should be able to feel it.


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Every engine is different. Maybe take breather tube off at engine and then blow air through to make sure it's clear.


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Is the inside of the air box nice and clean?


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Discussion Starter · #27 ·
It's nice and clean. I took off the crankcase breather and blew through it. Completely free and clear. I started it up with the breather hose off and after a minute or two it darted to blow a normal amount of air through it. There's no run out in the crank at all per a dial indicator .006 so this leads me back to the oil seal.....any ideas?


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Replace that seal and make sure to grease inner seal surfaces. Also check and make sure the oil return hole is clear by blowing air through it too. If it's clear install the new seal after using the 1000 grit emery paper on crank.
 

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Discussion Starter · #29 ·
It's the tolerance between the crank and the oil seal. It's like the oil seal is too big


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Does that seal have a circular spring on the inner lip?


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I take it you are no longer under warranty to take it to a dealer to fix. You barely have any hours on your ride and a seal should not go bad that quickly.

Chasing oil leaks is and can be a pain in the ass.
 

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When you get a new seal take static measurements. I've seen brand new seals that are bad.


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You said you checked run out but what about diameter of the crank. I know it sounds crazy but you have to check all possibilities. That should fall under warranty though.


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But if the crank is not correct that's a manufacture defect.


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What about finding a seal at Napa that has a smaller inside diameter ?


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In the primary clutch?


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Well I hope some others have some other ideas.


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