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SportsBoat_F4Y12.book Page 185 Tuesday, July 5, 2022 1:54 PM

Specifications

Item Specification
Performance
Maximum fuel consumption (for each engine) 3-star models
49.7 L/h (13.1 US gal/h, 10.9 Imp.gal/h)
4-star models
43.8 L/h (11.6 US gal/h, 9.6 Imp.gal/h)
Cruising range at full throttle 3-star models
2.86 hour
4-star models
3.24 hour
Trolling speed 1300 ±100 r/min
Engine
Number of engines 2
Engine type Liquid cooled 4-stroke, DOHC
Number of cylinders 4
Engine displacement 1812 cm 3
Bore × stroke 86.0 × 78.0 mm (3.39 × 3.07 in)
Compression ratio 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

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