7
SERVICING YOUR PUMP
Proper maintenance is essential for safe, economical, and
trouble-free operation. It will also help reduce air pollution.
To help you properly care for your pump, the following pages include
a maintenance schedule, routine inspection procedures, and simple
maintenance procedures using basic hand tools. Other service tasks
that are more difficult, or require special tools, are best handled by
professionals and are normally performed by a Honda technician or
other qualified mechanic.
The maintenance schedule applies to normal operating conditions. If
you operate your pump under severe conditions, such as sustained
high-load or high-temperature operation, or use in unusually wet or
dusty conditions, consult your servicing dealer for recommendations
applicable to your individual needs and use.
Remember that an authorized Honda servicing dealer knows your
pump best and is fully equipped to maintain and repair it.
To ensure the best quality and reliability, use only new, Honda
Genuine parts or their equivalents for repair and replacement.
Maintenance, replacement, or repair of the emission control
devices and systems may be performed by any engine repair
establishment or individual, using parts that are “certified” to
EPA standards.

MAINTENANCE SAFETY

Some of the most important safety precautions follow. However, we
cannot warn you of every conceivable hazard that can arise in
performing maintenance. Only you can decide whether or not you
should perform a given task.

Safety Precautions

• Make sure the engine is off before you begin any maintenance or
repairs. This will eliminate several potential hazards:
•Carbon monoxide poisoning from engine exhaust.
Be sure there is adequate ventilation whenever you operate
the engine.
•Burns from hot parts.
Let the engine and exhaust system cool before touching.
•Injury from moving parts.
Do not run the engine unless instructed to do so.
• Read the instructions before you begin, and make sure you have
the tools and skills required.
• To reduce the possibility of fire or explosion, be careful when
working around gasoline. Use only a nonflammable solvent, not
gasoline, to clean parts. Keep cigarettes, sparks, and flames away
from all fuel-related parts.

MAINTENANCE SCHEDULE

1. Service more frequently when used in dusty areas.
2. These items should be serviced by an authorized Honda servicing
dealer, unless you have the proper tools and are mechanically
proficient.
Failure to follow this maintenance schedule could result in
non-warrantable failures.
B WARNING
Improper maintenance, or failure to correct a problem
before operation, can cause a malfunction in which you
can be seriously hurt or killed.
Always follow the inspection and maintenance
recommendations and schedules in this owner’s manual.
B WARNING
Failure to properly follow maintenance instructions and
precautions can cause you to be seriously hurt or killed.
Always follow the procedures and precautions in this
owner’s manual.

Interval Item

Before each use
Check the engine oil level (page 8)
Check the air filter (page9)
Check pump hoses and strainer (page 12)
After each use Flush the pump chamber (page12)
First month or
20 hours
Change the engine oil (page8)
Grease the pump connecting rod bearing
(page 12)
Every 3 months or
50 hours Clean the air filter 1 (page 9)
Clean the sediment cup (page11)
Grease the pump connecting rod bearing
(page 12)
Check the gear box oil level (page 12)
Every 6 months or
100 hours Change the engine oil 1 (page8 )
Inspect-adjust the spark plug (page10)
Clean-check the spark arrester (page10)
(optional equipment)
Every year or
300 hours Change the engine oil 1 (page8 )
Replace the air cleaner paper filter 1 (page9)
Replace the spark plug (page10)
Adjust the valve clearance 2
Adjust the idle speed 2
Clean the fuel tank and filter 2
Change the gear box oil (page 12)
Inspect the pump clappet valve (page 13)
Inspect the pump diaphragm (page13 )
Check the torque of nuts and bolts
Every 2 years Check the fuel line and replace if necessary 2