I finally got around to checking my valve clearances on my 00' 426. The results surprised me. A review of the old posts indicated that I would likely find the clearances on the "tight" side due to the valves wearing into the seats. The measured clearances, however, were slightly out of specification by all being a little loose. For example, the intake valve clearances all measured .330 mm (spec is .25 - .30 mm) and the exhaust valves measured .229, .203 and .203 (spec is .15 - .20 mm). According to these measurements, I need to go to thicker pads. I have changed the oil after every 3 rides, the top end looked very clean and there were no galled spots on the camshafts or the lifter bodies. Any ideas out there as to why my clearances measured loose rather than tight? My only thought is that they might have been way off when new (I wish I would have checked them sooner). FYI, I have noticed absolutely no decrease in performance and the bike cranks with no more than two kicks in nearly all situations. Should I be hesitant to put thicker pads in to bring the clearances into specification. Thanks in advance for your responses.