Honda GX630 Owner's Manual page 5

SAFETY PRECAUTIONS
• Make sure the engine is off before you begin any maintenance or
repairs. To prevent accidental startup, disconnect the spark plug
cap. This will eliminate several potential hazards:
– Carbon monoxide poisoning from engine exhaust.
Operate outside, away from open windows or doors.
– 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 LPG or NATURAL GAS. Use only a
non-flammable 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 Honda
Genuine parts or their equivalents for repair and replacement.
MAINTENANCE SCHEDULE
REGULAR SERVICE PERIOD (3)
Perform at every
indicated month or
operating hour interval,
whichever comes first.
ITEM
Engine oil Check level
Change
Engine oil filter Replace
Air cleaner Check
Clean
Replace
Spark plug Check-adjust
Replace
Spark arrester Clean
(applicable types)
Idle speed Check-adjust
Valve clearance Check-adjust
Combustion Clean
chamber
Fuel tube Check
*
Replace the paper filter element only.
**
Refer to the Shop Manual.
(1) Service more frequently when used in dusty areas.
(2) These items should be serviced by your servicing dealer,
unless you have the proper tools and are mechanically
proficient. Refer to the Honda shop manual for service
procedures.
(3) For commercial use, log hours of operation to determine
proper maintenance intervals.
(4) In Europe and other countries where the machinery directive
2006/42/EC is enforced, this cleaning should be done by your
servicing dealer.
Failure to follow this maintenance schedule could result in
non-warrantable failures.
Each First Every 3 Every 6 Every
Use Month Months Months Year
or or or or
20 Hrs 50 Hrs 100 Hrs 300 Hrs
o
o o
Every 200 Hrs.
o
o (1)
o
o
o (4)
o (2)
o (2)
After every 1000 Hrs. (2)
Every 2 years (Replace if necessary) (2)
REFUELING
Recommended Fuel
LPG: Propane content of 95% or higher.
NATURAL GAS: Methane content of 90% or equivalent.
This engine is certified to operate on LPG or NATURAL GAS only.
Occasionally you may hear a light ''spark knock'' or ''pinging''
(metallic rapping noise) while operating under heavy loads. This is
no cause for concern.
If spark knock or pinging occurs at a steady engine speed, under
normal load, see an authorized Honda servicing dealer.
Running the engine with persistent spark knock or pinging can
cause engine damage.
Running the engine with persistent spark knock or pinging is
considered misuse, and the Distributor's Limited Warranty does not
cover parts damaged by misuse.
Every 2 Refer
Years to
or Page
500 Hrs
6
6
7
7
7
o*
8
9
**
**
**
**
ENGLISH
5