Honda BF35A-BF45A Outboard Motors Shop Manual., Page 252Get this manual
Model Tve
BF4OA 4-stroke, O.H.C 3-cylinder
BF5OA 808 cm3(49.4 cu in) 70 70 (2.8 2.8 in)
Diswlacement Bore stroke Rated power I Maximum torque
40 PS (29.8 kW)at 5,0006,000 min-I (rpm) 6.05 kg-m (43.8 ft-lb)at 3,500 min-I (rpm)
50 PS (36.8 kW)at 5,5006,000 min-l (rpm) 6.5 kg-m (47.1 ft-1b)Iat 4.500 min-I (rpm)
1 Compression ratio
= consumption ratio
276 gkW-h (203 glps-h, 0.45 Iblhp-h)
265 gkW-h (195 glps-h, 0.43 Iblhp-h) CDI28' B.T.D.C532' B.T.D.CDR7EA (NGK), X22ESR-U (NIPPONDENSO) Horizontal tvwe, butterfly valve (3 carburetor) Forced water circulation by impeller pump with thermostat
cool in system
Ignition system Ignition timing Spark plug Carburetor
Lubrication system Lubrication capacity Starter system svstem na Fuel Fuel tank capacity Exhaust system Recommended oil