Had the valves done at the first service at 2200 kms with no problems. My 2005 F also had the top end done at 4500 kms [December 05 ] for the evil cam end play gremlin. NO problems once again. I always warm the bike up and run MOBIL 1 15W50 in the motor. The wrench at the shop says you can double the inspection kms with no problems ss the bike is almost bullit proof .