oil leak? whats it called?

[GSmadness]

alright my 650 has a oil leak on the back side of the motor. Under the carbs there is something bolted to the jugs. Does anyone know what that is called? Or what its for? Thanks in advance
~Scott

[Guest]

Cam chain tensioner.

[mark]

Cam chain tensioner.

Right (of course). The cam chain tensioner puts tension on the cam chain so that it doesn't come off the cam sprockets etc. It adjusts automatically. You can pull it off and replace the gasket if its leaking.

[Guest]

Right (of course). The cam chain tensioner puts tension on the cam chain so that it doesn't come off the cam sprockets etc. It adjusts automatically. You can pull it off and replace the gasket if its leaking.

$3 gasket. But usually you have to remove the carbs to get to it.

[Steve]

Might be just the gasket, might also be the o-rings in the tensioner itself.

Brian Wringer has an excellent pictorial on how to repair it. \\/


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[GSmadness]

cool thanks everyone. Yeah the carbs are off the bike, thats how i noticed it was leaking. well thanks again.
~Scott

[Dave8338]

Might be just the gasket, might also be the o-rings in the tensioner itself.

Brian Wringer has an excellent pictorial on how to repair it. \\/


.

Steve, thanks for the link. I've been waiting for that to pop up again (lazy) so that I could print it off and add it to the stack of "better than factory" illustrations and explinations in the clymers book.

[bwringer]

The small seal is the part that invariably leaks the most, but the small o-ring is also usually leaking a bit. You have to replace the large o-ring when you disassemble the tensioner, but it's normally not leaking.

Every GS needs this at some point!

[GSmadness]

Alright thanks again, also great write-up. That is going to come in handy when i get all the seals and such.
~Scott

[Guest]

Also make sure it's not coming from the front of the engine and running in between the cylinders to the rear.