StarVentureRider

my lifter was not near as bad as yours, mine was scored a little on bottom from not rotating in lifter bore. cams and lifters were put in set valves to 0 clearance , ran engine and still had more top end noise than i thought should be there. I rode down the road at about 20mph at about 2000 rpm and just seems to have more chatter on top than another venture I rode. so Idecided to double check what was just done and found front cylinder intake lifter not rotating.yamaha has not gotten back to me for an idea of what to do next

I started noticing more top end clatter checked valve clearance found front cylinder lifters not pumped up. pulled lifters found intake lifter scored along with cam lobe. Intake lifter not turning in bore. yamaha replaced cams and lifters noise was still there. Is back apart and by the pattern on lifters the same lifter is not turning. The bike has 6600 miles I have a small Yamaha dealership but do not sell bikes anymore. Have been working on bikes for 30 years