Anyone know how to tighten the chain on an 848? They said mine had apparently stretched a bit and was a little loose. I'm not 100% sure how to tighten it
There are two 10mm pinch bolts on the swingarm. You don't even need a paddock stand to do this. You will need a spanner. Loosen the two pinch bolts, rotate the eccentric counterclockwise (as you face the axle) and you will see the chain tighten. There should be a decal somewhere on the swingarm telling you how much slack you should have. The slack is measured as the distance from the middle of the chain (between the two sprockets) to the metal of the swingarm (not the rubber slider). Note that the chain will always touch the swingarm when you push up on it with your finger; it must have this slack to account for the suspension squatting. Tighten the pinch bolts (sorry I don't know the torque, though it's most likely online somewhere).
If you want to be mage perfect about it, measure your ride height before you begin anything. After you tighten the chain, the ride height will change due to the axle being on an eccentric, so adjust the height back to where it was.
I have a spanner you can borrow if you'd like, but it's for a 916, so it may not fit. But the dealer may just as easily do it on the spot too, if you go that route (it's really that fast). rock on.
edit:
i meant counterclockwise. (in any case, just observe what happens as you turn it, it's not difficult to figure out which way to do it)
