Yamaha R6 Forum: YZF-R6 Forums banner
1 - 3 of 3 Posts

·
Registered
Joined
·
3,661 Posts
Wow... never seen that before. Looks like it was starved of oil somehow. Ordinarily there's a healthy amount of lubrication up there. Shredded clutches have been known to clog the oil cooler on the front of the engine. Other than that, has to be low/no oil, severly overheated and/or severely neglected oil. Check the rest of the motor for evidence of overheat/starvation as well.

3rd-Gen parts should be the same. Should work; but seek a second opinion to be sure.
 

·
Registered
Joined
·
3,661 Posts
Cam bolt bores barely hold to torque spec, particularly when there have been multiple valve-checks on an engine. People have been known to strip the bores.

Theory? - Cam bolts backed off enough to allow the gap and head to separate a little. Oil was then sheared-off in that gap, leading to starvation?
 
1 - 3 of 3 Posts
Top