Ski-Doo FORMULA S 1997, Shop Manual

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Section 09 TECHNICAL DATA
Sub-Section 02 (ENGINES)
09-02-1
VEHICLE MODEL FORMULA III/III LT MACH 1 MACH Z/Z LT
ENGINE TYPE 599 699 809
Number of Cylinders 3 3 3
Bore mm (in) 67.5 (2.5394) 69.5 (2.7461) 70.5 (2.7756)
Stroke mm (in) 61.0 (2.402) 61.0 (2.402) 68.0 (2.677)
Displacement cm 3 (in 3 ) 597.94 (36.49) 699.2 (42.7) 796.3 (48.59)
Compression Ratio (corrected) 6.8 6.8 6.8
Maximum Power Engine Speed
➀
± 100 RPM 8500 8500 8300
Piston Ring Type 1 st /2 nd ST/R ST/R ST/R
Ring End Gap
new
wear limit mm (in)
mm (in) 0.2 (.008)
1.0 (.039) 0.2 (.008)
1.0 (.039) 0.20 (.008)
1.0 (.039)
Ring/Piston Groove Clearance
new
wear limit mm (in)
mm (in) 0.03 (.0012)
0.2 (.008)
0.03 (.0012)
0.2 (.008)
0.03 (.0012)
0.2 (.008)
Piston/Cylinder Wall Clearance
new
wear limit mm (in)
mm (in) 0.07 (.0028)
0.15 (.0059) 0.10 (.0039)
0.15 (.0059) 0.11 (.0043)
0.15 (.0059)
Connecting Rod Big End Axial Play
new
wear limit mm (in)
mm (in) 0.39 (.0154)
1.2 (.0472)
0.39 (.0154)
1.2 (.0472)
0.31 (.0122)
1.2 (.0472)
Maximum Crankshaft End-play
➁
mm (in) 0.3 (.0118) 0.3 (.0118) 0.3 (.012)
Maximum Crankshaft Deflection mm (in) 0.08 (.0031) 0.08 (.0031) 0.08 (.0031)
Rotary Valve Timing
➂
and P/N 420 924 XXX
Opening
Closing
N.A. N.A. N.A.
Magneto Generator Output W 220 220 220
Ignition Type CDI CDI CDI
Spark Plug Make and Type NGK BR10ES NGK BR10ES NGK BR10ES
Spark Plug Gap mm (in) 0.45 (.018) 0.45 (.018) 0.45 (.018)
Ignition Timing BTDC
➃
mm (in) 2.18 (.086) 2.18 (.086) 2.11 (.083)
Trigger Coil
➄
Ω
190 – 300 190 – 300 190 – 300
Generating Coil
➄
Low Speed
Ω
49 – 75 49 – 75 49 – 75
High Speed
Ω
2.8 – 4.3 2.8 – 4.3 2.8 – 4.3
Lighting Coil
➄
Ω
0.20 – 0.35 0.20 – 0.35 0.20 – 0.35
High Tension Coil
➄
Primary
Ω
0.2 – 0.5 0.2 – 0.5 0.2 – 0.5
Secondary k
Ω
6 – 13 6 – 13 6 – 13
Carburetor Type PTO/CTR/MAG VM 36-176/177/178 VM 38-356/357/358 3 x TM 38-C159
Main Jet PTO/CTR/MAG 330/330/330 350/350/350 380/380/380
Needle Jet 256 P-0 480 P-7 327 O-4
Pilot Jet 50 50 50
Needle Identification
– Clip Position
6DEY4-3 6DEY2-4 8AGY1-41
Slide Cut-away 2.5 2.5 2.0
Float Adjustment ± 1 mm (± .040 in) 18.1 (.71) 18.1 (.71) 20.0 (.79)
Air Screw Adjustment ± 1/16 Turn 1-1/2 2-1/4 4
Idle Speed RPM ± 200 RPM 1900 1800 1800
Gas Type/Pump Octane Number Super Unleaded/91 Super Unleaded/91 Super Unleaded/91
Gas/Oil Ratio Injection Injection Injection
Type Liquid Liquid Liquid
Axial Fan Belt Adjustment
Deflection
➅
mm (in) N.A. N.A. N.A.
Force kg (lbf) N.A. N.A. N.A.
Thermostat Opening Temperature °C (°F) 42 (108) 42 (108) 42 (108)
Radiator Cap Opening Pressure kPa (PSI) 90 (13) 90 (13) 90 (13)
EN
G
IN
E
C
O
LD
N•m (l
b•f
t)
Drive Pulley Retaining Screw
➆ ➆ ➆
Exhaust Manifold Nuts or Bolts 9 (6.6) 9 (6.6) 9 (6.6)
Magneto Ring Nut 125 (92) 125 (92) 125 (92)
Crankcase Nuts or Screws
M6
M8 13 (9.5)
22 (16)
13 (9.5)
22 (16)
13 (9.5)
29 (21)
Crankcase/Engine Support Nuts or Screws 13 (9.6) 13 (9.6) 13 (9.6)
Cylinder Head Nuts 29 (21) 29 (21) 29 (21)
Crankcase/Cylinder Nuts or Screws 29 (21) 29 (21) 29 (21)
Axial Fan Shaft Nut N.A. N.A. N.A.