I recently bought a used '99 YZ400 and am planing a complete disassembly over the winter. I will be adding a WB header pipe and E-series silencer as well as new sprockets / chain ( 14/52? ). The bike will be set-up for motocross. I may open up the top end to check things out and will definetly do the CW locktite thing as it is noisy and at first thought it was top end. Bike has lots of compression and does not smoke at all so judging from other posts I am guessing CW. I will be powder coating the frame black and yes will take the greatest precautions in keeping sandblasting / paint out of frame. Will use plugs to seal and will rinse out with varsol as a precaution after curing. My question is where can I find a stock sized tank in white? I do not want a large tank if it can be avoided. I am setting up the bike white as the plastics are worn and I love the Euro look. The grahpics kits out there ( Slik and One ) seem to do an O.K. job of hiding blue, but the tank is just that, blue. Seems like a dumb gripe but being a perfectionist a matching tank would make sense.