User Manual

4. BF25NBF30A
Model BF25A BF30A
TY Pe
Displacement
4-stroke, O.H.C., 3-cylinder
499 cm3 (30.5 cu. in.)
Bore x stroke
Rated horsepower
58 x 63 mm (2.3 x 2.5 in)
I
18.7 kW (25 PS) at 5,000-6,000 rpm 22.4 kW (30 PS) at 5,700-6,200 rpm
ICarburetor
I Horizontal butterfly valve-type triple carburetor I
35.2 N*m (3.59 kg-m, 26.0 Ib-ft)
at 4,000 rpm
Maximum torque
I
ILubricating system I Pressure lubrication by trochoid pump
36.3 N-m (3.7 kg-m, 26.8 Ib-ft)
at 4,500 rpm
--
I .6 liter (I .69 US qt) at oil change
1.9 liter (2.0
US qt) with oil filter replacement
Oil capacity
Compression ratio
Fuel consumption
Cooling system
SAE
1 OW-30, API Service classification
SG,
SH, SJ
I Recommended oil
9.2
: 1
Forced water circulation by impeller pump with thermostat
239 g (8.4 oz.)
/ kWh 291 g (10.3 oz.) / kWh
SAE 5W-30, API Service
classification SG, SH,
SJ
Ignition system
Ignition timing
Spark plug
CDI
S26" B.T.D.C. 5-32" B.T.D.C.
DR7EA (NGK), X22ESR-U (DENSO)
Starting system
Battery system
Electric starter and recoil starter
494 MCA minimum (engine operations only)
LOWER UNIT
Stopping system
Fuel used
Ignition primary circuit ground
Automotive unleaded gasoline (minimum 86 pump octane)
Fuel tank capacity
Fuel pump
Exhaust system
INumber of blades
I 3 I
25 liters (6.6 US gal)
Mechanical plunger type
Thru-hub
Model
Clutch
BF25A BF30A
Dog clutch (forward-neutral-reverse)
I Rotating direction I Clockwise (viewed from rear) I
Gear ratio
Reduction type
Gear case oil capacity
Recommended gear case oil
I Driving system I Spline I
-
2.08:l (27/13)
Spiral bevel gear
0.29 liters (0.307 US qt)
API Service classification GL4 or GL5
Date of Issue: June 2003
0 2001-2003 American Honda Motor Co., Inc.
4-4
Diameter
235 mm (9.24 in)
235 mm (9.25 in)
XRS type: 254 mm (10 in)
Propeller
_.
305 mm (12 in)
Pitch 305 mm (12 in)
XRS type: 210 mm (8.25 in)