Kawasaki JS800A3 User Manual
General specifications, Model identification, Tuning specifications
General Specifications
Engine
Engine Type
2-stroke, 2-cylinder, Reed valve, Water cooled
Displacement
781 cc
Bore x Stroke
82.0 x 74.0 mm
Compression Ratio
7.2:1
Ignition System
Magneto CDI (Digital)
Lubrication System
Pre-mix (60:1)
Carburetor
Mikuni BN40-38x2
Starting
Electric
Drive System
Coupling
Direct drive from engine
Jet Pump:
Type
Axial flow, single stage
Thrust
699 lb.
Steering
Steerable nozzle
Braking
Water Drag
Hull
Length
2,300 mm (90.6 in.)
Width
730 mm (28.7 in.)
Height
735 mm (28.9 in.)
Dry Weight
159 kg (351 lb.)
Fuel Tank Capacity
17 liter (4.5 gal.)
Model Identification
Year & Model
‘05 JS800-A3:800 SX-R
Color
1. Jet White (8C)
HIN Range
KAW20001
3405 —
Engine No. Range
JS800AE000001 —
Engine No. Location
Top rear reed valve housing of the crankcase
Tuning Specifications
Spark Plug
NGK BR8ES
—Gap
0.7-0.8 mm
Ignition Timing
— Idle Speed 13° BTDC at 1,250 rpm
— High Speed 20.2° BTDC at 4,000 rpm
Carburetor
Idle Speed
1250 ±100 rpm (in water)
Low Speed Needle
7/8 turns out
High Speed Needle
3/4 turns out
Compression Pressure
129-199 psi (throttle open)