Maintenance; Specifications - Yamaha F2.5 Owner's Manual

EMU31480

Specifications

NOTE:
"(AL)" stated in the specification data below
represents the numerical value for the alumi-
num propeller installed.
Likewise, "(SUS)" represents the value for
stainless steel propeller installed and "(PL)"
for plastic propeller installed.
EMU28218
Dimension:
Overall length:
623 mm (24.5 in)
Overall width:
345 mm (13.6 in)
Overall height S:
1021 mm (40.2 in)
Transom height S:
432 mm (17.0 in)
Weight (AL) S:
17.0 kg (37 lb)
Performance:
Full throttle operating range:
5250–5750 r/min
Maximum output:
1.8 kW@5500 r/min (2.5 HP@5500 r/min)
Idling speed (in neutral):
1900 ±100 r/min
Engine:
Type:
4-stroke S
Displacement:
72.0 cm³ (4.39 cu.in)
Bore × stroke:
54.0 × 31.5 mm (2.13 × 1.24 in)
Ignition system:
TCI
Spark plug (NGK):
BR6HS
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Control system:
Tiller
Starting system:
Manual
Starting carburetion system:
Choke valve
Valve clearance (cold engine) IN:
0.08–0.12 mm (0.0032–0.0047 in)
Valve clearance (cold engine) EX:
0.08–0.12 mm (0.0032–0.0047 in)
Drive unit:
Gear positions:
Forward-neutral
Gear ratio:
2.08 (27/13)
Trim and tilt system:
Manual tilt
Propeller mark:
BS
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Min. pump octane:
86
Fuel tank capacity (built in type):
0.9 L (0.24 US gal) (0.20 Imp.gal)
Recommended engine oil:
4-stroke outboard motor oil
Engine oil grade API:
API SE, SF, SG, SH, SJ, SL
Engine oil type SAE:
SAE10W30 or SAE10W40
Lubrication:
Wet sump
Engine oil quantity (excluding oil filter):
0.35 L (0.37 US qt) (0.31 Imp.qt)
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
75.0 cm³ (2.54 US oz) (2.65 Imp.oz)
Tightening torque for engine:
Spark plug:
25.0 Nm (18.4 ft-lb) (2.55 kgf-m)
Engine oil drain bolt:
18.0 Nm (13.3 ft-lb) (1.84 kgf-m)

Maintenance

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