Stopping the engine, Servicing your engine, The importance of maintenance – HONDA GXV390 User Manual
Page 4: Maintenance safety, Safety precautions, Maintenance schedule, Warning

4
STOPPING THE ENGINE
1. Recoil Start Models
Move the throttle control to the
SLOW position.
2. Move the throttle control to the
stop position.
Electric Start Models
Move the throttle control to the
slow position, then turn the
engine switch to the OFF or
STOP position.
3. Turn the fuel valve lever to the
OFF position if you do not
intend to restart the engine
soon.
SERVICING YOUR ENGINE
THE IMPORTANCE OF MAINTENANCE
Good maintenance is essential for safe, economical and trouble-free
operation. It will also help reduce pollution.
To help you properly care for your engine, 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 engine 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.
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.
Remember that an authorized Honda servicing dealer knows your
engine best and is fully equipped to maintain and repair it.
To ensure the best quality and reliability, use only new genuine Honda
parts or their equivalents for repair and replacement.
MAINTENANCE SCHEDULE
(1) Service more frequently when used in dusty areas.
(2) Change engine oil every 25 hours when used under heavy load or
in high ambient temperatures.
(3) These items should be serviced by an authorized Honda servicing
dealer, unless you have the proper tools and are mechanically
proficient. Refer to the Honda shop manual for service
procedures.
(4) For commercial use, log hours of operation to determine proper
maintenance intervals.
LPG Models:
Turn the fuel valve OFF at
the source.
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.
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.
SLOW
OFF
OFF
FUEL VALVE LEVER
REGULAR SERVICE
PERIOD (3)
Each
Use
First
Month
or
20 Hrs
Every 3
Months
or
50 Hrs
Every 6
Months
or
100 Hrs
Every
Year
or
300
Hrs
Page
ITEM
Perform at every indicated month or operating
hour interval, whichever comes first.
Engine oil
Check
O
Replace
O
O
Engine oil
(LPG models)
Check level
O
Change
O
O
Engine oil filter
Replace
O
Air filter
Check
O
Clean
O (1)
Replace
O
Cooling air filter
(LPG models)
Clean
O (1)
Spark plug
Check-
adjust
O
Replace
O
Spark arrester (optional part)
Clean
O
Idle speed
Check-
adjust
O(3)
-
Fuel tank and filter
Clean
O(2)
-
Fuel line
Check
Every 2 years
(Replace if necessary)
Valve clearance
Check-
adjust
O(2)
-
Fuel hose (LPG models)
Check
O
-