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When adjusting the valves,should the engine be hot or cold? The spec. is .006" but it doesn't say hot or cold? The reason I ask is because ever since I set my valves to .006" it has been too noisey for my liking,especially hot.Tonight I removed the plastics,set the gastank to the side and ran the engine until it was really warm,then quickly removed the inspection plugs and measured the clearance,MAN WAS I SUPRISED,About .011" Clearance.No wonder they're noisey.So here's what I did:I set the valves to a loose .004" when HOT then let the bike cool for about an hour,re-measured the clearance and I couldn't get a .002" in between.So as the engine heats up then the clearance gets bigger,just the opposite of what I thought.I put it all back together and went for a ride and it actually runs better and sounds a whole lot QUIETER!