Emission Control System - Honda BF40D Owner's Manual

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.
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<Tank Filter Cleaning>
5 mm SCREWS
CONNECTOR
GASKET
FUEL TANK
FUEL TANK
FILTER JOINT
FILTER
(Fuel Hose Connector)
1. Remove the four 5 mm screws
using a flat screwdriver, 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 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