Technical data

Section 13 TECHNICAL DATA
Sub-Section 01 (SP AND SPI MODELS)
13-01-1
SP AND SPI MODELS 1
ENGINE SP (5876) SPI (5878)
Engine type Bombardier-Rotax 587
Induction type Rotary valve
Exhaust system Type Water cooled, water injected
Water injection fitting 4.6 mm (.181 in)
Starting system Electric start
Lubrication Fuel / oil mixture VROI (Variable Rate Oil Injection
Oil injection pump Gear driven
Oil type BOMBARDIER-ROTAX injection oil
Number of cylinders 2
Bore Standard 76.0 mm (2.992 in)
First oversize 76.25 mm (3.002 in)
Second oversize 76.50 mm (3.012 in)
Stroke 64 mm (2.520 in)
Displacement 580.7 cm³ (35.4 in³)
Corrected compression ratio 6.5 : 1
Cylinder head warpage (maximum) 0.05 mm (.002 in)
Piston ring type and quantity 1 Semi-trapez – 1 Rectangular
Ring end gap New 0.25 - 0.40 mm (.010 - .016 in)
Wear limit 1.00 mm (.039 in)
Ring / piston groove
clearance
New 0.05 - 0.08 mm (.002 - .003 in)
Wear limit 0.2 mm (.008 in)
Piston / cylinder wall
clearance
New 0.05 - 0.07 mm (.002 - .003 in)
Wear limit 0.2 mm (.008 in)
Cylinder taper (maximum) 0.100 mm (.004 in)
Cylinder out of round (maximum) 0.080 mm (.003 in)
Connecting rod bigend
axial play
New 0.39 - 0.74 mm (.015 - .029 in)
Wear limit 1.2 mm (.047 in)
Crankshaft deflection ➀
Rotary valve timing Opening 130° ± 5 BTDC
Closing 65° ± 5 ATDC
Rotary valve duration 147°
Crankcase / rotary valve gap 0.25 - 0.35 mm (.010 - .014 in)
Connecting rod / crank-
shaft pin radial clearance
New 0.02 - 0.03 mm (.0008 - .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)
ADDITIONAL INFORMATION : Squish gap : 1.2 - 1.8 mm (.047 - .071 in).
➀MAG side : 0.05 mm (.002 in)
PTO side : 0.03 mm (.001in)
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