| Brand |
Yamaha
|
Honda
|
| Model |
F20B
|
BF20
|
|
Power
|
20HP
|
20HP
|
|
Rated Speed
|
5000r/min
|
5000r/min
|
|
Cylinders Arrangement/Number
|
2
|
2
|
|
Displacement
|
362cm3
|
350cm3
|
|
Weight
|
51.7kg
|
52.5kg
|
|
Bore
|
63mm
|
59mm
|
|
Stroke
|
58.1mm
|
64mm
|
|
Cooling
|
|
Water Cooled
|
|
Gear Ratio
|
2.08:1
|
2.08:1
|
|
ShaftLength
|
(in/mm)
|
15 or 20/381 or 508(in/mm)
|
|
Gears
|
F N R
|
F N R
|
|
Alternator
|
12V - 10A
|
Electric 12 Amps (148 Watts) Manual 6 Amps (76 Watts)
|
|
Ignition
|
CDI/Computer
|
Programmed Ignition System
|
|
Starter
|
Manual (BM), Electric (BE)
|
Manual/Electric
|
|
Exhaust
|
|
Through prop
|
|
Trim
|
Manual (BM) (0, 4, 8 and 12 degrees), Power Tilt (BE)
|
4 stages
|
|
FuelInduction
|
1 carb.
|
Single Venturi
|
|
Lubrication
|
Wet sump
|
Wet Sump
|
|
Steering
|
|
Remote or tiller
|
|
Engine Type
|
20 HP 4-STROKE
|
20 HP 4-STROKE
|
|
Outboard
|
Outboard
|
Outboard
|
