I eat my R6
Join Date: Dec 2014
Location: Southwest Ohio
Bike: 2008 Yamaha YZF-R6s Stock
Re: Replace camshaft sprockets
Bah, don't worry about torque. Finger... no... wrist tight and it'll be fine.
Joking of course.
I can visualize it, but explaining it...
Two longish thick boards, each with a hole in them, set on your lap. The backside of the sprocket rests on the boards with the cam hanging free. Something strong, like a cut broom stick or socket extension inserts through the sprocket holes and into the boards. That should hold it while you use the leverage afforded by the boards to get it to the required 17 ft-lbs... which ain't really much.
Obviously I've not needed to do that yet.