2002 Bombardier Quest 650XT Service Manual, Page 298Get this manual
Section 11 TECHNICAL DATA Subsection 02 (ENGINE AND VEHICLE)
ENGINE AND VEHICLE
VEHICLE MODEL Starting system Number of cylinder(s) Number of valves Decompressor type Bore Stroke Displacement Compression ratio Maximum HP RPM Lubrication Oil filter Air filter type Exhaust system Intake valve opening Intake valve closing Exhaust valve opening Exhaust valve closing Intake Valve stem diameter Exhaust ENGINE Valve guide diameter Valve spring free length Intake Exhaust New minimum New maximum Wear limit New minimum New maximum Wear limit Wear limit New Wear limit New Wear limit New Wear limit New Wear limit New Wear limit mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) 1st 2nd 3rd mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) QUEST 650 QUEST 650 XT Electric with optional recoil valves with hydraulic lifters (no adjustment) Automatic 100 (3.9) 82 (3.2) 644 (39.3) 9.5:1 7000 Wet sump with replaceable oil filter BOMBARDIER-ROTAX stage foam filter Nelson, stainless steel USDA approved 10.00 BTDC 55.00 ABDC 50.00 BBDC 5.00 ATDC 5.961 (.2347) 5.975 (.2352) 5.930 (.2330) 5.946 (.2341) 5.960 (.2346) 5.930 (.2330) 6.060 (.2386) 45.45 (1.789) 43.00 (1.693) 1.10 to 1.30 (.043 to .051) 1.8 (.07) 1.25 to 1.55 (.049 to .061) (.078) 99.951 to 99.969 (3.935 to 3.936) 99.80 (3.929) 0.031 to 0.059 (.001 to .002) 0.090 (.004) Rectangular Taper-face Oil scraper ring 0.15 (.006) 0.15 (.006) 0.15 (.006) 0.35 (.014) 0.35 (.014) 0.30 (.012) 1.5 (.06) 0.025 (.001) 0.015 (.0006) 0.020 (.0008) 0.070 (.0028) 0.060 (.0024) 0.055 (.0021)