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Honda Outboard Motor BF15A User Manual

Honda Outboard Motor BF15A
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5. High altitude operation
At high altitude, the standard carburetor air-fuel mixture will be excessively
rich. performance will decrease, and fuel consumption will increase.
High altitude performance can be improved by installing a smaller diameter
main fuel jet in the carburetor and readjusting the pilot screw. If you always
operate the outboard motor at altitudes higher than 6,000 feet above sea
level, have your authorized Honda Outboard Motor dealer perform these
carburetor modifications.
Even with suitable carburetor jetting, engine horsepower will decrease ap-
proximately 3.5% for each 1,000 foot increase in altitude. The affect of
altitude on horsepower will be greater than this if no carburetor modifica-
tion is made.
CAUTION: Operation of the outboard motor at an altitu,de lower than the
carburetor is jetted for may result in reduced performance, overheating,
and serious engine damage caused by an excessively lean air/fuel mixture.
26

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Honda Outboard Motor BF15A Specifications

General IconGeneral
Displacement350 cc (21.4 cubic inches)
Horsepower15 HP
Cooling SystemWater cooled
Fuel DeliveryCarburetor
Ignition SystemCDI
Starting SystemManual or Electric
Gear Ratio2.08:1
Trim Positions5
LubricationWet sump
FuelUnleaded gasoline (86 octane)
Propeller3-blade aluminum
Gear ShiftF-N-R
Bore x Stroke59 mm x 64 mm (2.3 in x 2.5 in)
Full Throttle RPM Range5, 000-6, 000 RPM
Dry Weight46 kg
Oil Capacity1.1 L
Alternator6A, 12V
Shaft Length15" (Short), 20" (Long)
Fuel Tank Capacity12 L (External tank)
ExhaustThrough propeller hub

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