Do it once.. Do it right!
Join Date: Sep 2014
After reading about the damage you've described, it's obvious to me, that head needs to come off.
Without seeing the damage, anyone here is going to be speculating on the cause..
Have that head rebuilt (to check ALL valves, buckets, shims, seats, springs, etc) repair/replace as necessary.
Check your cams visually for obvious wear on lobes,etc., and also with mic to be in tolerance.
Check the cam chain for stretch.
Machine work can be spendy but when it's done, you know everything is within tolerance (if it's done by a pro)
Or... roll the dice and find a head/cam combo on eBay.
Leak check a used one at a minimum before installing it.
Best o luck.
Enjoy the journey!
2005 R1 Yamaha
2003 BMW K1200LT
1961 Harley Pan/Shovel
1974 CB750 Honda K4
1974 Kawasaki H2
1975 CR125 Elsinore
Honda mini trail's for the kid's