Maintenance & Technical > KX500 Original

Leaking Oil Seal - Behind Sprocket

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JAD777:
I'm hoping someone can help with this.  I bought a 93 K5 a couple months back and just finished getting everything ready for this season (i.e. Oil Change, Brakes, Grease, etc.). I now have oil leaking out of the seal for the front sprocket.  Note: When I drained the oil, it was real dark / thick and there wasn't much (i.e. I'm thinking the level was lower then the seal).

My question is:  Can I change the oil seal from the outside (without having to remove and split the engine) - See diagram?  If so, are there any tricks / gotcha's that I should know.  Or can I simply work out the old one and install a new one...

Any info would be great!!!  - This site is the best...

Thanks
JAD777 - Ontario Canada

gowen:
Yes you can change the seal from the outside, just remove the sproket then the metal collar, then use a flat head or seal remover to pop out the oil seal. There is a o-ring you can get from home depot that will fix it too, I'll let you know if I find it.

hoopty:
It's NOT that seal that is leaking. It IS the tiny little o-ring behind the metal collar that is leaking. Search the forums and you'll find a posting by one of the admins concerning this very thing and how to ensure it doesn't happen again.

hughes:
The 0-ring is after the seal. So if oil is leaking pass the 0-ring than it must be leaking by the seal. Replace both and be done with it. I suspect the 0-ring is to keep the colar from contacting the seal.

hoopty:
Pull out the collar and you'll see what I'm talking about. I replaced seal after seal after seal until I took it apart and realized the o-ring is too small and THAT is where the leak is coming from. Fixed that and it's been years since I've changed one of those seals. But hey, you're in there anyway so change the seal while you're at it...

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