Engine Oil Recommendations; Spark Plug Service - Honda BF40D Owner's Manual

Engine Oil Recommendations

Oil is a major factor affecting
performance and service life. Use
4-stroke detergent oil.
SAE 5W-30 is recommended for
general use.
Honda recommends that you use API
service category SG, SH or SJ oil.
The SAE oil viscosity and service
category are in the API label on the
oil container.
SERVICING YOUR OUTBOARD MOTOR

Spark Plug Service

RECOMMENDED SPARK PLUGS:
DR7EB (NGK)
X22ESR-UB (DENSO)
Incorrect spark plugs can cause
engine damage.
Unlatch and remove the engine
2.
cover (p. 73 ).
SPARK PLUG CAPS
SPARK PLUG WRENCH
2. Disconnect the spark plug caps
from the spark plugs.
3. Remove the spark plugs with a
spark plug wrench.
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