Yamaha F50D Servise Manual - page 25
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Fuel and oil requirement
(*1) If the recommended engine oil grades are not available, use engine oil with an API classification
of SH, SJ, or SL and an SAE classification of 15W-40, 20W-40, or 20W-50.
(*2) Meeting both API and SAE requirements.
Power unit
Item
Unit
Model
F50DET
FT50CET
FT50CED
FT50CEHD
Fuel type
Regular unleaded gasoline
Fuel minimum rating
RON
91
Engine oil
Engine oil grade (*1)
API
SE, SF, SG, SH, SJ, or SL
SAE
5W-30, 10W-30, or 10W-40
Engine oil quantity
(Oil pan capacity)
without oil filter replacement
L (US qt,
Imp qt)
2.0 (2.1, 1.8)
with oil filter replacement
L (US qt,
Imp qt)
2.2 (2.3, 1.9)
Gear oil type
Hypoid gear oil
Gear oil grade (*2)
API
GL-4
SAE
90
Gear oil quantity
L (US qt,
Imp qt)
0.43
(0.45,
0.38)
0.67 (0.71, 0.59)
Item
Unit
Model
F50DET
FT50CET
FT50CED
FT50CEHD
Type
4-stroke, L
Cylinder quantity
4
Total displacement
cm
3
(cu. in)
935.0 (56.1)
Bore
×
stroke
mm (in)
63.0
×
75.0 (2.48
×
2.95)
Compression ratio
9.3
Control system
Remote control
Tiller
handle
Starting system
Electric
Fuel system
Carburetor
Ignition control system
CDI
Advanced type
Micro computer
Maximum generator output
V, A
12.0, 10.0
Starting enrichment
Prime Start
Spark plug
DPR6EA-9
Firing order
1-3-4-2
Cooling system
Water
Exhaust system
Propeller boss
Lubrication system
Wet sump
Model data