Specifications And Requirements; Specifications - Yamaha F2.5 Owner's Manual

EMU34520

Specifications

TIP:
"(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.
TIP:
"*" means, select the engine oil referring to the
chart of engine oil paragraph. For further infor-
mation, see page 14.
EMU2821C
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:
17.1 kg (38 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
Bore × stroke:
54.0 × 31.5 mm (2.13 × 1.24 in)

Specifications and requirements

Drive unit:
Fuel and oil:
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)
Gear positions:
Forward-neutral
Gear ratio:
2.08 (27/13)
Trim and tilt system:
Manual tilt
Propeller mark:
BS
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
Recommended engine oil group 1*:
SAE 10W-30/10W-40/5W-30
API SE/SF/SG/SH/SJ/SL
Recommended engine oil group 2*:
SAE 15W-40/20W-40/20W-50
API SH/SJ/SL
12