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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 KAW200013405 —
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)