Ski-Doo FORMULA S 1997, Shop Manual

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Section 09 TECHNICAL DATA
Sub-Section 02 (ENGINES)
09-02-4
VEHICLE MODEL
GRAND TOURING
583
SKANDIC WT/SWT SKANDIC WT LC
ENGINE TYPE 583 503 494
Number of Cylinders 2 2 2
Bore mm (in) 76.0 (2.992) 72.0 (2.835) 69.5 (2.736)
Stroke mm (in) 64.0 (2.52) 61.0 (2.402) 65.8 (2.59)
Displacement cm 3 (in 3 ) 580.7 (35.44) 496.7 (30.31) 499.3 (30.47)
Compression Ratio (corrected) 6.7 6.2 6.8
Maximum Power Engine Speed
➀
± 100 RPM 7900 6500 6800
Piston Ring Type 1 st /2 nd ST/N.A. ST/R ST/R
Ring End Gap
new
wear limit mm (in)
mm (in) 0.25 (.010)
1.0 (.040)
0.2 (.0079)
1.0 (.0394) 0.25 (.010)
1.0 (.040)
Ring/Piston Groove Clearance
new
wear limit mm (in)
mm (in) 0.04 (.0016)
0.2 (.0079)
0.04 (.0016)
0.2 (.0079)
0.04 (.0016)
0.2 (.0079)
Piston/Cylinder Wall Clearance
new
wear limit mm (in)
mm (in) 0.11 (.0045)
0.15 (.0059) 0.9 (.0035)
0.2 (.0079) 0.11 (.0043)
0.15 (.006)
Connecting Rod Big End Axial Play
new
wear limit mm (in)
mm (in) 0.39 (.0154)
1.2 (.0480)
0.2 (.0079)
1.0 (.0394) 0.39 (.0154)
1.2 (.048)
Maximum Crankshaft End-play
➁
mm (in) 0.3 (.0120) 0.3 (.0118) 0.3 (.012)
Maximum Crankshaft Deflection mm (in) 0.08 (.0032) 0.08 (.0031) 0.08 (.0032)
Rotary Valve Timing
➂
and P/N 420 924 XXX
Opening
Closing
140° – 71°
502
N.A.
148° – 52°
509
Magneto Generator Output W 220 240 220
Ignition Type CDI CDI CDI
Spark Plug Make and Type NGK BR9ES NGK BR8ES NGK BR9ES
Spark Plug Gap mm (in) 0.45 (.018) 0.45 (.018) 0.45 (.018)
Ignition Timing BTDC
➃
mm (in) 1.75 (.069) 1.66 (.065) 1.81 (.071)
Trigger Coil
➄
Ω
190 – 300 140 – 180 190 – 300
Generating Coil
➄
Ω
10 – 17 230 – 330 10 – 17
Lighting Coil
➄
Ω
0.2 – 0.35 0.23 – 0.28 0.20 – 0.35
High Tension Coil
➄
Primary
Ω
0.3 – 0.7 N.A. 0.3 – 0.7
Secondary k
Ω
8 – 16 5.1 – 6.3 8 – 16
Carburetor Type PTO/MAG VM 38 349/350 VM 32 VM 34
Main Jet PTO/MAG 280/270 230 260/280
Needle Jet 480-Q6 159 O-0 159-P0
Pilot Jet 50 25 30
Needle Identification
– Clip Position
6FEY1-3 6DH8-4 6DH4-3
Slide Cut-away 2.5 3.0 2.0
Float Adjustment ± 1 mm (± .040 in) 18.1 (.71) 23.9 (.94) 23.9 (.94)
Air Screw Adjustment ± 1/16 Turn 1.125 1.5 PTO 1.0/MAG 0.75
Idle Speed RPM ± 200 RPM 1800 1650 1900
Gas Type/Pump Octane Number Unleaded/87 Unleaded/87 Unleaded/87
Gas/Oil Ratio Injection Injection Injection
Type Liquid Axial Fan Liquid
Axial Fan Belt Adjustment
Deflection
➅
mm (in) N.A. 9 – 10 (.35 – .39) N.A.
Force kg (lbf) N.A. 5 (11) N.A.
Thermostat Opening Temperature °C (°F) 42 (108) N.A. 42 (108)
Radiator Cap Opening Pressure kPa (PSI) 90 (13) N.A. 90 (13)
ENG
INE
C
O
LD
N•
m
(
lb
•ft
)
Drive Pulley Retaining Screw
➃ ➆ ➆
Exhaust Manifold Nuts or Bolts 23 (17) 22 (16) 22 (16)
Magneto Ring Nut 125 (92) 105 (77) 125 (92)
Crankcase Nuts or Screws
M6
M8 9 (6.5)
23 (17)
—
22 (16)
9 (6.5)
21 (16)
Crankcase/Engine Support Nuts or Screws 40 (29) 39 (29) 40 (29)
Cylinder Head Nuts 29 (21) 22 (16) 29 (21)
Crankcase/Cylinder Nuts or Screws 29 (21) N.A. 29 (21)
Axial Fan Shaft Nut N.A. 48 (35) N.A.