Section 13 TECHNICAL DATA
Subsection 02 (RX DI AND GTX DI MODELS)
SMR2000-072_13_02A.FM 13-02-1
RX DI AND GTX DI MODELS 0
ENGINE RX DI (5646/5656) GTX DI (5649/5659)
Engine type BOMBARDIER-ROTAX 947 DI, 2-stroke
Induction type Reed valve
Exhaust system
Type Water cooled, water injected with regulator
Water injection fitting (head) 3.5 mm (.139 in)
Water injection fitting (cone) Not applicable
Water injection fitting (muffler) 4 mm (.157 in)
Exhaust valve RAVE
Starting system Electric start
Lubrication
Fuel/oil mixture VROI (Variable Rate Oil Injection)
Oil injection pump Direct driven
Oil injection type
BOMBARDIER
Formula XP-S DI (synthetic injection oil only)
Number of cylinders 2
Bore
Standard 88 mm (3.465 in)
First oversize 88.25 mm (3.474 in)
Second oversize Not applicable
Stroke 78.20 mm (3.079 in)
Displacement 951.2 cm³ (58 in³)
Corrected compression ratio 6.1: 1
Cylinder head volume 51.4 ± 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
Ring end gap
New
0.55 - 0.7 mm
(.022 - .028 in)
Wear limit 1.1 mm (.043 in)
Ring/piston groove
clearance
New 0.044 - 0.089 mm (.002 - .003 in)
Wear limit 0.2 mm (.008 in)
Piston/cylinder wall
clearance
New (minimum) 0.12 mm (.0047 in)
Wear limit 0.20 mm (.008 in)
Cylinder taper (maximum) 0.10 mm (.004 in)
Cylinder out of round (maximum) 0.08 mm (.003 in)
Connecting rod big end
axial play
New 0.390 - 0.737 mm (.015 - .029 in)
Wear limit 1.2 mm (.047 in)
Crankshaft deflection MAG side: 0.050 mm (.002 in); PTO side: 0.030 mm (.001 in)
Rotary valve timing
Opening Not applicable
Closing Not applicable
Rotary valve duration Not applicable
Rotary valve/cover clearance Not applicable
Connecting rod/
crankshaft pin radial
clearance
New 0.017 - 0.034 mm (.0006 - .0013 in)
Wear limit 0.050 mm (.002 in)
Connecting rod/piston
pin radial clearance
New 0.003 - 0.012 mm (.00012 - .00047 in)
Wear limit 0.015 mm (.00059 in)
Air compressor
Type Piston
Displacement 43 cm³ (2.6 in³)
Drive Balancing shaft
Intake side Reed valves
Exhaust side Reed valves
ADDITIONAL INFORMATION:
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