Ski-Doo TOURING E LT 1997 - Page 603

Section 09 TECHNICAL DATA
Sub-Section 02 (ENGINES)
09-02-2
VEHICLE MODEL FORMULA 500
FORMULA 500
DELUXE
FORMULA 583 FORMULA Z
ENGINE TYPE 494 454 583 583
Number of Cylinders 2 2 2 2
Bore mm (in) 69.5 (2.736) 69.5 (2.736) 76.0 (2.992) 76.0 (2.992)
Stroke mm (in) 65.8 (2.59) 65.8 (2.59) 64.0 (2.52) 64.0 (2.52)
Displacement
cm
3
(in
3
)
499.3 (30.47) 499.3 (30.47) 580.7 (35.44) 580.7 (35.44)
Compression Ratio (corrected) 6.8 6.8 6.7 6.7
Maximum Power Engine Speed ➀ ± 100 RPM 7750 7750 7900 7900
Piston Ring Type
1
st
/2
nd
ST/R ST/R ST/N.A. ST/N.A.
Ring End Gap
new
wear limit
mm (in)
mm (in)
0.25 (.010)
1.0 (.040)
0.25 (.010)
1.0 (.040)
0.25 (.010)
1.0 (.040)
0.25 (.010)
1.0 (.040)
Ring/Piston Groove Clearance
new
wear limit
mm (in)
mm (in)
0.04 (.0016)
0.2 (.008)
0.04 (.0016)
0.2 (.008)
0.04 (.0016)
0.2 (.008)
0.04 (.0016)
0.2 (.008)
Piston/Cylinder Wall Clearance
new
wear limit
mm (in)
mm (in)
0.11 (.0043)
0.15 (.006)
0.11 (.0043)
0.15 (.006)
0.11 (.0043)
0.15 (.006)
0.11 (.0043)
0.15 (.0059)
Connecting Rod Big End Axial Play
new
wear limit
mm (in)
mm (in)
0.39 (.0156)
1.2 (.048)
0.39 (.0156)
1.2 (.048)
0.39 (.0156)
1.2 (.048)
0.39 (.0156)
1.2 (.048)
Maximum Crankshaft End-play ➁ mm (in) 0.3 (.0120) 0.3 (.0120) 0.3 (.012) 0.3 (.012)
Maximum Crankshaft Deflection mm (in) 0.08 (.0032) 0.08 (.0032) 0.08 (.0032) 0.08 (.0032)
Rotary Valve Timing ➂ and P/N 420 924 XXX
Opening
Closing
135° – 64°
509
135° – 64°
509
140° – 71°
502
140° – 71°
502
Magneto Generator Output W 220 220 220 220
Ignition Type CDI CDI CDI CDI
Spark Plug Make and Type NGK BR9ES NGK BR9ES NGK BR9ES NGK BR9ES
Spark Plug Gap mm (in) 0.45 (.018) 0.45 (.018) 0.45 (.018) 0.45 (.018)
Ignition Timing BTDC ➃ mm (in) 1.81 (.071) 1.81 (.071) 1.75 (.069) 1.75 (.069)
Trigger Coil ➄ Ω 190 – 300 190 – 300 190 – 300 190 – 300
Generating Coil ➄ Ω 10 – 17 10 – 17 10 – 17 10 – 17
Lighting Coil ➄ Ω 0.20 – 0.35 0.20 – 0.35 0.20 – 0.35 0.20 – 0.35
High Tension Coil ➄
Primary Ω 0.3 – 0.7 0.3 – 0.7 0.3 – 0.7 0.3 – 07
Secondary kΩ 8 – 16 8 – 16 8 – 16 8 – 16
Carburetor Type PTO/MAG VM 38 345/346 VM 38 345/346 VM 38 349/350 VM 40 88/89
Main Jet PTO/MAG 310/290 310/290 280/270 280/260
Needle Jet 480-P3 480-P3 480-Q6 224 AA-2
Pilot Jet 50505060
Needle Identification
– Clip Position
6FEY1-3 6FEY1-3 6BGY15-4 7ECY1-3
Slide Cut-away 2.5 2.5 2.5 2.5
Float Adjustment ± 1 mm (± .040 in) 18.1 (.71) 18.1 (.71) 18.1 (.71) 18.1 (.71)
Air Screw Adjustment ± 1/16 Turn 1.5 1.5 2.25 2.25
Idle Speed RPM ± 200 RPM 1800 1800 1800 1800
Gas Type/Pump Octane Number Unleaded/87 Unleaded/87 Unleaded/87 Unleaded/87
Gas/Oil Ratio Injection Injection Injection Injection
Type Liquid Liquid Liquid Liquid
Axial Fan Belt Adjustment
Deflection ➅ mm (in) N.A. N.A. N.A. N.A.
Force kg (lbf) N.A. N.A. N.A. N.A.
Thermostat Opening Temperature °C (°F) 42 (108) 42 (108) 42 (108) 42 (108)
Radiator Cap Opening Pressure kPa (PSI) 90 (13) 90 (13) 90 (13) 90 (13)
ENGINE COLD
N•m (lb•ft)
Drive Pulley Retaining Screw ➆➆➆➆
Exhaust Manifold Nuts or Bolts 23 (17) 23 (17) 23 (17) 23 (17)
Magneto Ring Nut 125 (92) 125 (92) 125 (92) 125 (92)
Crankcase Nuts or Screws
M6
M8
9 (6.5)
29 (21)
9 (6.5)
29 (21)
9 (6.5)
23 (17)
9 (6.5)
23 (17)
Crankcase/Engine Support Nuts or Screws 40 (29) 40 (29) 40 (29) 40 (29)
Cylinder Head Nuts 29 (21) 29 (21) 29 (21) 29 (21)
Crankcase/Cylinder Nuts or Screws 29 (21) 29 (21) 29 (21) 29 (21)
Axial Fan Shaft Nut N.A. N.A. N.A. N.A.