If the exhaust valves were tight then would it cause the bike to kick over easy cause the clearance on the decompression arm would be tighter? When I got the bike used it was fairly easy to kick over. I did a valve check and the valves were tight, I did a valve adjustment and set the decompression to spec, and now the bike is doesn't kick over as easy but it's not stiff, just not as smooth. Just to be sure I set the decompression right: exh. valve .011 with a filler gauge between the shim and rocker then .014 between the rocker and decompression arm and set the screw. I checked my timing marks and everything is lined up, I even realigned it 1 tooth off to see if I wasn't seeing it right but then it would really totally be noticeable off. Bike runs great though.