2002 Bombardier Quest 650XT Service Manual, Page 108Get this manual
Subsection 08
Section 03 ENGINE (CYLINDER AND HEAD)
Install the camshaft timing gear with the writing toward cylinder head exhaust pipe and upper engine support (refer to REMOVAL AND INSTALLATION) engine outlet hose carburetor and pulse line tensioner valve cover shield valve cover and profile sealing ring (see Valve cover above) breather and notched washer decompressor camshaft timing gear cylinder head screws M6 no32
R610motr113A
1Good 2Never
R610motr114A
CAUTION: Crankshaft and camshaft must be locked on TDC position to place camshaft timing gear and timing chain in the proper position