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SportsBoat_F7G10.book Page 205 Wednesday, June 14, 2023 9:23 AM

Specifications

Item Specification
Engine
Number of engines 2
Engine type Liquid cooled 4-stroke, DOHC
Number of cylinders 4
Engine displacement 3-star models
1898 cm³
4-star models
1812 cm³
Bore × stroke 3-star models
88.0 × 78.0 mm (3.46 × 3.07 in)
4-star models
86.0 × 78.0 mm (3.39 × 3.07 in)
Compression ratio 3-star models
11.2 : 1
4-star models
11.0 : 1
Valve clearance-intake (cold) 0.14–0.23 mm (0.0055–0.0091 in)
Valve clearance-exhaust (cold) 0.28–0.37 mm (0.0110–0.0146 in)
Lubrication system Wet sump
Cooling system Water
Starting system Electric
Ignition system T.C.I.
Spark plug (NGK) LFR6A
Spark plug gap 0.8–0.9 mm (0.031–0.035 in)
Battery capacity 12 V, 85 Ah
Charging system Flywheel magneto
Drive unit
Propulsion system Jet pump
Jet pump type Axial flow, single stage
Impeller rotation Counterclockwise
Pitch angle 3-star models
16.1°
4-star models
14.5°
Transmission Direct drive from engine
Jet thrust nozzle angle 23+23°

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