Honda BF90D User Manual

144
MAINTENANCE
1. Disconnect the fuel line from fuel
tank.
2. Empty the tank, pour in a small
quantity of gasoline, and clean the
tank thoroughly by shaking it.
Drain and dispose of the gasoline
properly.
<Tank Filter Cleaning>
1. Remove the four 5 mm screws
using a flat screwdriver, and then
remove the fuel hose connector and
fuel tank filter from the tank.
2. Clean the filter in nonflammable
solvent. Inspect the fuel tank filter
and the connector gasket. Replace
them if damaged.
3. Reinstall the filter and hose
connector in the fuel tank. Tighten
the four 5 mm screws securely.
EMISSION CONTROL SYSTEM
The combustion process produces
carbon monoxide and hydrocarbons.
Control of hydrocarbons is very
important because under certain
conditions, they react to form
photochemical smog when subjected
to sunlight. Carbon monoxide dose
not react in the same way, but it is
toxic.
Problems that May Affect Outboard
Motor Emissions
If you are aware of any of the
following symptoms, have the
outboard motor inspected and
repaired by your authorized Honda
dealer:
1. Hard starting or stalling after
starting
2. Rough idle
3. Misfiring or backfiring during
acceleration
4. Poor performance (driveability)
and poor fuel economy
5 mm SCREWS CONNECTOR
GASKET
FUEL TANK 
FILTER JOINT 
(Fuel Hose Connector)
FUEL TANK
FILTER
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Honda BF90D Specifications

General

Bore & Stroke	73 mm x 89.4 mm
Horsepower	90 HP
Cooling System	Water Cooled
Starting System	Electric
Gear Ratio	2.33:1
Trim Range	-4° to +16°
Tilt Range	70°
Dry Weight	163 kg (359 lbs)
Lubrication	Wet Sump
Recommended Fuel	Unleaded Gasoline (86 Octane or higher)
Gear Shift	F-N-R
Steering	Remote
Trim Method	Power Trim and Tilt
Displacement	1496 cc
Exhaust	Through propeller
Alternator Output	44 Amps
Recommended Engine Oil	10W-30 FC-W
Shaft Length	20" or 25"
Engine Type	4-Stroke SOHC, 4 Cylinders
Fuel Delivery	Programmed Fuel Injection