Section 17 TECHNICAL DATA
Subsection 03 (XP DI MODEL)
XP DI MODEL
ENGINE XP DI
Engine type BOMBARDIER-ROTAX 947 DI, 2-stroke
Induction type Reed valve
Type Water cooled, water injected with regulator
Water injection fitting (head) 3.5 mm (.139 in)
Water injection fitting (cone) Not applicable
Exhaust system
Water injection fitting (muffler) 3 mm (.118 in)
Exhaust valve RAVE
Starting system
Electric start
Fuel/oil mixture
VROI (Variable Rate Oil Injection)
Oil injection pump
Direct drivenLubrication
Oil injection type XP-S
TM
synthetic 2-stroke OR XP-S
TM
synthetic blend
Number of cylinders 2
Standard
88 mm (3.465 in)
First oversize 88.25 mm (3.474 in)Bore
Second oversize
Not applicable
Stroke 78.20 mm (3.079 in)
Displacement 951.2 cm³ (58 in³)
Corrected compression ratio
6.0: 1
Cylinder head volume
50.76 ± 0.6 cc
Cylinder head warpage (maximum)
0.10 mm (.004 in) total
Piston ring type and quantity 2 semi-trapez chrome coated steel rings
New 0.55 - 0.7 mm (.022 - .028 in)
Ring end gap
Wear limit 1.1 mm (.043 in)
New 0.044 - 0.089 mm (.002 - .003 in)
Ring/pistongrooveclearance
Wear limit 0.2 mm (.0079 in)
New (minimum) 0.12 mm (.0047 in)
Piston / cylinder wall clearance
Wear limit 0.22 mm (.0087 in)
Cylinder taper (maximum)
0.10 mm (.004 in)
Cylinder out of round (maximum)
0.08 mm (.003 in)
New 0.390 - 0.737 mm (.015 - .029 in)
Connecting rod big end axial
play
Wear limit 1.2 mm (.047 in)
Crankshaft deflection MAG side: 0.050 mm (.002 in); PTO side: 0.030 mm (.001 in)
Opening
Not applicable
Rotary valve timing
Closing
Not applicable
Rotary valve duration Not applicable
Rotary valve/cover clearance Not applicable
New 0.017 - 0.034 mm (.0006 - .0013 in)
Connecting rod / crankshaft pin
radial clearance
Wear limit 0.050 mm (.002 in)
New 0.001 - 0.014 mm (.00039 - .00055 in)
Connecting rod/piston pin
radial clearance
Wear limit 0.017 mm (.00067 in)
Type Piston
Displacement 43 cm³ (2.6 in³)
Drive Balancing shaft
Intake side Reed valves
Air compressor
Exhaust side Reed valves
ADDITIONAL INFORMATION:
smr2004-Complete Line Up 771
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