What does this do?

[spaytons]

Back side of a 850 and its leaking. What is it?

[Guest]

Cam chain tensioner.

[spaytons]

Thanks, appreciate it. It sounds fun to repair.

[spaytons]

hmmmmmmmm...........

Go check Basscliff's site. There is a tutorial.

Mine was also leaking. I ordered the gaskets first the dismantled the tensionner.

I found the smoking gun.

There was NO gasket between it and the engine.

DP

[hampshirehog]

Make sure you read the manual before pulling it off. It's a dead easy job but if you don't follow the procedure you could be in trouble.

[matt1100]

..And What Mr. Hampshire means is if you were to muck this up it could cause your pstons to slam into your vavles, trashing your motor. Yes, its fun to repair

[steve murdoch]

You call that a leak?

[Steve]

Yes, it's very simple to repair, but even easier to mess things up if you don't do it right.

I have not been following any of your posts to remember what all you have done to the bike, but this would be a good time to do a bunch of other stuff, too.

You definitely have to remove the carbs to get the tensioner off. Have you cleaned them and replaced their o-rings?

Although it's not necessary, it would be a good time to do a valve adjustment, since you are going to be working at the top of the engine, anyway.

.

[spaytons]

I haven't messed with anything other than a gasket replacement. I'm researching before I get into it. thanks for the tips

[MisterCinders]

Rebuilding the cct is pretty easy. Just order the OEM seals and follow the guide on Bwringer's(?) site. There is a link on BassCliff's page.