Yamaha 50 - Specifications and Requirements; Engine and System Specifications

13
Specifications and requirements
EMU31480
Specifications
T
IP:
“(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.
EMU2821E
Dimension:
Overall length:
670 mm (26.4 in)
Overall width:
360 mm (14.2 in)
Overall height L:
1319 mm (51.9 in)
Transom height L:
533 mm (21.0 in)
Weight (without propeller) L:
86.0 kg (190 lb)
Performance:
Full throttle operating range:
4500–5500 r/min
Maximum output:
36.8 kW@5000 r/min
(50 HP@5000 r/min)
Idling speed (in neutral):
800 ± 50 r/min
Engine:
Type:
2-stroke L
Displacement:
698.0 cm
3
Bore × stroke:
67.0 × 66.0 mm (2.64 × 2.60 in)
Ignition system:
CDI
Spark plug (NGK):
B8HS-10
Spark plug gap:
0.9–1.0 mm (0.035–0.039 in)
Control system:
Remote control
Starting system:
Electric
Starting carburetion system:
Prime start
Min. cold cranking amps (CCA/SAE):
245.0 A
Min. marine cranking amps (MCA/ABYC):
323.0 A
Min. reserve capacity (RC/SAE):
52 minutes
Maximum generator output:
6 A
Drive unit:
Gear positions:
Forward-neutral-reverse
Gear ratio:
1.85 (24/13)
Trim and tilt system:
Power trim and tilt
Propeller mark:
G
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Min. pump octane:
86
Fuel tank capacity:
25 L (6.60 US gal, 5.50 Imp.gal)
Recommended engine oil:
YAMALUBE 2-stroke outboard motor
oil
Lubrication:
Oil injection
Engine oil tank capacity:
1.5 L (1.59 US qt, 1.32 Imp.qt)
Recommended gear oil:
Hypoid gear oil SAE#90