tranny oil leak

dirttastesgr8 · Oct 29, 2002

I have a 93 CR 125. I have noticed recently that a smal puddle of tranny oil is forming underneath the bike. I traced the drip to the countershaft (the front sprocket had a drop of the oil on it). Is this just a bad seal? I just had the motor rebuilt last spring (and still owe my buddy for it!) and the seals are all new. Would adding a leakstopper additive to the transmission oil help? Or do I have to replace that seal? The bike has probably only about 2 hours on it since the rebuild.

cr25096er · Oct 29, 2002

its easy to replace that seal, just pop it off and buy another one.

dirttastesgr8 · Oct 30, 2002

Doh! :eek: I thought I would have to do some major disassembly to get to that seal. So all I have to do is remove the front sprocket to get at it?

biglou · Oct 30, 2002

That sounds about right. I am not sure about this particular model, but yes, just pop the countershaft sprocket off and then you can remove the old seal (pry it out with a screwdriver, but be careful not to nick the seating surface of the case hole, etc.) and tap the new one in with a rubber mallet. Work you way around the seal, don't try to tap one side in all the way and then go to the other side. Just tap it in a little at a time as you work your way around it. I also smear a dab of grease on the coutershaft where the seal will contact it to help prevent it from snagging the new seal.

70 marlin · Nov 7, 2002

not sure on honda's but kawi's have a little bushing that wear's out also? if there's one, check it for grooving.

tranny oil leak

dirttastesgr8

cr25096er

dirttastesgr8

biglou

70 marlin

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