Engine Specifications

Engine Type:
Cooling:
Displacement:
Bore x Stroke:
Compression Ratio:
Ignition System:
Lubrication System:
Carburetor:
Starting:
2-stroke, 3-cylinder Reed valve
Water cooled

1071 cc
80 x 71 mm
5.8 : 1
DC-CDI, Digital Advance
Oil injection
Keihin, CDCV 38 x 3
Electric

Drive System Specifications

Coupling:
Jet Pump Type:
Thrust:
Steering:
Braking:
Direct drive from engine
Axial flow, single stage
803 lb.
Steerable nozzle
Water Drag

Hull Specifications

Length:
Width:
Height:
Dry Weight:
Fuel Capacity:
122 in.
46.1 in.
41.3 in.
613 lb.
12.95 Gal. Including reserve

Model Identification

Year and model:
Color:
HIN Range:
Engine No. Range:
Engine No. Location:
98 JT1100-B1 Jet Ski1100STX
Jet White
KA0028 798
JHT10AE000001
Top front reed valve cover

Tuning Specifications

Spark plug:
Spark gap:
Ignition timing 1250 rpm:
Ignition timing 3000 rpm:
Compression pressure:
NGK BR9ES
0.7 - 0.8 mm
17 BTDC
27 BTDC
136 psi