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Kawasaki JS800A3 User Manual

General specifications, Model identification, Tuning specifications

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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

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)