ok guys i was new to adjusting the valves on the raptor and i followed the DIY write up and after everything was done I put the valve covers back on and reinstalled the gas tank and fired it up. Some reason the motor sounds noisy when I started it up. The valves were really tight so I loosen them up to around .012 intake and .018 on the exhaust side. Im going to go back and recheck them today. Any input would be helpful thanks.