76
SPECIFICATIONS
BOMBARDIER DS
VEHICLE MODEL NUMBER
7404
ENGINE
Type
654 BOMBARDIER-ROTAX, 4 stroke,
double overhead camshaft, bush chain drive
Number of cylinder
Single cylinder
Number of valve
4 bucket tappet-operated valves
Displacement
652 cc (39.7 cu. in)
Compression ratio
9.7:1
Lubrication
Dry sump lubrication by oil pump with replaceable
oil filter (lubrication of engine and transmission
simultaneously)
Decompressor
Automatic
Exhaust system
Bombardier, stainless header pipe painted steel
muffler
TRANSMISSION
Clutch
1 multi-disc
Transmission
Integrated 5 speeds constant mesh transmission.
COOLING
Type
Liquid cooled with integrated water pump
Radiator
Front mounted with thermostatic fan
CARBURETION
Carburetor make and type
Mikuni BSR42.
Constant depression type with manual choke
Idle speed
± 100
1300 RPM
ELECTRICAL
Magneto generator make and type
Denso, 290 W
Ignition type
Breakerless high voltage condenser ignition
system with electronic spark advance
Ignition timing
Not adjustable
Engine RPM limiter
7700 RPM (any gear in forward)
Spark plug make and type
NGK DR8EA
Number of spark plug
2
Spark plug gap
0.6 to 0.7 mm (0.024 to 0.027 in)
Battery
12 V, 13 Ah. Dry type battery.
Starting system
Electric start. Start in any gear
(with clutch applied or on NEUTRAL)
Headlight
60/55 W, H4V
Taillight and brake light
8/27 W, 1157
vmo2000_001b.fm Page 76 Friday, September 17, 1999 1:21 PM
