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

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EMU38092

Specifications

TIP:
"(AL)" stated in the specification data below
represents the numerical value for the alumi-
num propeller installed.
EMU48360
Dimension and weight:
Overall length:
625 mm (24.6 in)
Overall width:
363 mm (14.3 in)
Overall height S:
1028 mm (40.5 in)
Overall height L:
1155 mm (45.5 in)
Motor transom height S:
433 mm (17.0 in)
Motor transom height L:
560 mm (22.0 in)
Dry weight (AL) S:
17 kg (37 lb)
Dry weight (AL) L:
18 kg (40 lb)
Performance:
Full throttle operating range:
5250–5750 r/min
Rated power:
1.8 kW (2.5 HP)
Idle speed (in neutral):
1800–2000 r/min
Power unit:
Type:
4-stroke OHV S1 2 valves
Total displacement:
72 cm³ (4.4 c.i.)
Bore × stroke:
54.0 × 31.5 mm (2.13 × 1.24 in)
Ignition system:
TCI

Specifications and requirements

Lower unit:
Fuel and oil:
Spark plug (NGK):
CR6HSB
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Steering system:
Tiller handle
Starting system:
Manual starter
Starting carburetion system:
Choke valve
Valve clearance IN (cold engine):
0.08–0.12 mm (0.0032–0.0047 in)
Valve clearance EX (cold engine):
0.08–0.12 mm (0.0032–0.0047 in)
Gear shift positions:
Forward-neutral
Gear ratio:
2.08 (27/13)
Trim and tilt system:
Manual tilt
Propeller mark:
BS
Recommended fuel:
Regular unleaded gasoline
Min. research octane number (RON):
90
Fuel tank capacity (built in type):
0.9 L (0.24 US gal, 0.20 Imp.gal)
Recommended engine oil:
YAMALUBE 4 or 4-stroke outboard
motor oil
Recommended engine oil grade 1:
SAE 10W-30/10W-40/5W-30
API SE/SF/SG/SH/SJ/SL
Engine oil quantity:
0.35 L (0.37 US qt, 0.31 Imp.qt)
10

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