Yamaha 50A Outboard Motor User Manual


 
Model
Unit 40MHA
Item
4-1
E
DIMENSIONS
PERFORMANCE
8Overall Length mm (in.)
8Overall Width mm (in.)
8Overall Height S/L/X mm (in.)
8Transom height S/L/X mm (in.)
8Weight S/L/X kg (lb.)
1,281 (50.4)
349 (13.7)
—/1,350 (53.1)/—
—/533 (21.0)/—
—/77.5 (171)/—
8Full throttle operating range r/min
8Maximum output kW (HP)
8Idling speed r/min
4,500–5,500
29.4 (40) at 5,000 r/min
750–850
ENGINE
8Engine type
Number of cylinder
Displacement cm
3
(cu.in.)
Bore
× stroke mm (in.)
8Ignition system
8Spark plug NGK
Spark plug gap mm (in.)
8Control system
8Starting system
8Battery capacity V-AH
Minimum cold crank performance Amps a-17.8°C (0°F)
Minimum reserve capacity minutes at 26.7°C (80°F)
8Alternator output V-Amp (W)
8Starting carburetion system
2-stroke, L
3
698 (42.6)
67.0 × 66.0 (2.6 × 2.6)
C.D.I system
B7HS-10
0.9–1.0 (0.035–0.039)
Tiller control
Manual start
12-(80)
Choke valve start system
DRIVE UNIT
8Gear positions
Gear ratio
8Trim and tilt system
8Propeller mark
Forward-Neutral-Reverse
1.85 (24/13)
Manual tilt
G
FUEL AND OIL
TIGHTNING TORQUE
8Fuel
Fuel tank capacity L (US gal, Imp gal)
8Recommended engine oil
Oil tank capacity L (US qt, Imp qt)
8Lubrication
8Fuel/oil ratio
8Recommended gearcase oil
Gear oil quantity cm
3
(US oz, Imp oz)
Regular-unleaded gasoline (petrol) (P.O.N.: minimum 86)
YAMALUBE 2 STROKE OUTBOARD OIL, or an equivalent
TC-W3 certified outboard oil
Engine: 1.5 (1.6, 1.3)
Remote: —
YAMAHA PRECISION BLEND SYSTEM
Hypoid gear oil (SAE 90)
430 (14.5, 15.1)
25 (2.5, 18)
35 (3.5, 25)
EMK10011*
SPECIFICATION DATA
8Spark plug N•m (kgf•m, lb•ft)
8Propeller nut N•m (kgf•m, lb•ft)
63B-9-19-4 (E) 4/18/01 11:40 AM Page 2