User Manual
Table Of Contents
5.
BF40NBF50A
Model
TY Pe
Displacement
Bore x stroke
S
P
E
C
I
F
I
CAT1
0
N
S
ENGINE
BF40A BF50A
4-stro ke,
0.
H .C., 3-cylinder
808 cm3 (49.4 cu. in.)
70 x 70 mm (2.8 x 2.8 in)
Compression ratio
Fuel consumption
Cooling system
lanition svstem
Rated horsepower
I
29.8 kW (40 PS) at 5,000-6,000 rpm
I
37.3 kW (50 PS) at 5,500-6,000 rpm
I
9.2
:
1
Forced water circulation by impeller pump with thermostat
CDI
276 g (9.74
oz.)
I
kWh
265 g (9.35
02.)
/
kWh
Maximum torque
Fuel used
Fuel tank capacity
60 N*m (6.05 kg-m, 43.8 Ib-ft)
at 3,500 rDm
I
65 N*m (6.5 kg-m, 47.1 Ib-ft)
at 4.500 rDm
Automotive unleaded gasoline (minimum 86 pump octane)
25 liters (6.6 US gal)
Fuel pump
Exhaust system
Ignition timing
I
5-28" B.T.D.C.
I
5-32' B.T.D.C.
Mechanical plunger type
Thru-hub type
Spark plug
I
DR7ES (NGK), X22ESR-U (DENSO)
Clutch
Gear ratio
Carburetor
I
Horizontal butterfly valve-type triple carburetor
Dog clutch
(forward-neutral-reverse)
2.09:l (33126 x 23/14)
Lubricating system
I
Pressure lubrication by trochoid pump
Reduction type
Gear case oil capacity
Recommended gear case oil
Propeller
Oil capacity
Spiral bevel gear
0.52 liters (0.550 US qt)
API Service classification GL4 or GL5
2.2 liter (2.32 US qt) at oil change
2.4 liter (2.54 US at1 with oil filter redacement
Rotating direction
Driving system
Recommended oil
I
SAE5W-30, API Service classification SG, SH,
SJ
Clockwise (viewed from rear)
Spline
Starting system
I
Electric starter
Battery system
1
494 MCA minimum (engine operations only)
Stopping system
I
Ignition primary circuit ground
LOWER
UNIT
I
Model
I
BF40A
I
BF50A
I
Date
of
Issue: June 2003
0
2001-2003 American Honda
Motor
Co.,
Inc.