Just ordered the gaskets, ect. that I will need, and getting everything ready to put it back together. (lapping the valves now) Question: This motor has low hours, but there is an excessive amount of carbon built up on both intake valves. Is there something to prevent this, or is this just nomal? (Kaw FH500V) Also, if anyone just happens to know the valve lash, and what the head bolts torque on, it would be most helpful, and much appreciated. (thankz) *did switch to full synthetic sooner than I might should have, but other than that, it's maintained to the letter+. (not that full synthetic would have any effect) Switching to NGK........hear they work alot better than the Champions....any thoughts?