stupid leak!

Joined
May 30, 2006
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#1
i have a 05 KTM 525 mxc and theres a engine oil leak that i have tried to fix three times already. the front sprocket seems to be throwing the oil everywhere. i just want to know where the leak is coming from its starting to piss me off! :bang:
 
Joined
Aug 8, 2000
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#2
Is it engine oil or chain lube? (You said it was coming from the front sprocket)

Engine - check the countershaft seal.

Chain - maybe look at another brand of chain lube...
 
Joined
Dec 29, 2002
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#4
Some aftermarket countershaft sprockets are just a smidge thinner than stock and will not put the required pressure on the countershaft seal. This will cause leaks. I solved it on my 200sx by putting an O-ring behind the sprocket.