Hi folks, Having checked and reshimmed (some of) the valve clearances on my 2001 VFR800FI, i now need to reinstall the camshafts (all four out of the engine). I have a Haynes manaual and have downloaded the factory manual. Question 1: My main concern is getting the wrong TDC on the pulse rotor and ending up 360 degrees out of sync. Is that something that can happen and how does one safeguard against that? Does anyone have any useful insights, tips or tricks? Is it best to work front to rear or vice versa? Q2: I was proposing to use Honda red silicone sealant for the valve cover gaskets. Anyone have any thoughts on the best sealant to use? Q3: I've blanked off the PAIR system but may need to reuse one or two of the old PAIR dowel O-rings and spark plug tunnel o-rings due to difficulty getting spares. Is this a complete no-no?