29
GB
ITEM
REMARKS
Pre - operation
check (daily)
Pre - operation
Pre - operation Initial
1 month
or 20 Hr
Every
3 months
Every
Every
or 50Hr
Every
6 months
Every
Every
or 100Hr
Every
12 months
Every
Every
or 300Hr
Valve Clearance
Check and adjust when
engine is cold.
Check and adjust when
Check and adjust when
•
Fuel Line
Check fuel hose for crack or
damage.
Replace if necessary.
damage.
damage.
•
Exhaust System
Check for leakage.
Retighten or replace gasket
Check for leakage.
Check for leakage.
if necessary.
Retighten or replace gasket
Retighten or replace gasket
•
Check muffler screen.
Clean / replace if necessary.
•
Carburetor
Check choke operation.
•
Cooling system
Check fan damage.
•
Starting
system
Starting
Starting
Check recoil starter
operation.
•
Decarbonization
More frequently if
necessary.
•
Fittings /
Fasteners
Fittings /
Fittings /
Check all fittings and
fasteners; correct if
Check all fittings and
Check all fittings and
necessary.
•
2) ENGINE OIL REPLACEMENT (PIC. 15 - PIC. 6)
1. Place the machine on a level surface and warm up the engine
for several minutes. Then stop the engine.
2. Remove the oil filler cap
3. Place an oil pan under the engine. Remove the oil drain plug
so that the oil can be completely drained.
4. Check the oil drain plug, gasket, oil filler cap and O-ring. If
damaged replace.
5. Reinstall the oil drain plug.
6. Add engine oil to the upper level.
Recommended engine oil:
API Service «SE» or «SF», if not available, «SD».
CAUTION:
Be sure no foreign material enters the crankcase.
3) AIR FILTER (PIC. 16)
Maintaining an air cleaner in proper condition is very important.
Dirt induced through improperly installed, improperly serviced,
or inadequate elements damages and wears out engines. Keep
the air filter always clean.
1. Take out the air filter, clean it well in kerosene and dry it.
2. After wetting the air filter with clean engine oil, squeeze it tight
by hand.
3. Lastly, put the air filter in the case and install it securely.
CAUTION:
The engine should never run without the element; excessive
piston and/or cylinder wear may result.
4) CLEANING AND ADJUSTING SPARK PLUG (PIC.17)
Standard electrode color:
Tan Color
Spark Plug Gap:
0.7-0.8 mm (0.028-0.031 in)
5) FUEL COCK (PIC. 18)
1. Stop the engine.
2. Turn the fuel cock lever to «OFF».
3. Clean with solvent.
3. Wipe off.
4. Check the gasket. Replace it if damaged.
! WARNING
BE sure the fuel cock cup is tightened securely.
6) FUEL TANK FILTER (PIC. 19)
1) Clean with solvent.
2) Wipe off.
3) Re-install the fuel tank filter.
7) MUFFLER SCREEN (PIC.20)
! WARNING
• The engine and muffler will be very hot after the engine has
been run.
• Avoid touching the engine and muffler while they are still hot
with any part of your body or clothing during inspection or
repair.
1. Remove the muffler protector and muffler screen.
2. Clean the carbon deposits out of the muffler screen using a
wire brush.
3. Check the muffler screen. Replace it if damaged.
4. Install the muffler screen and muffler protector.
(1)
Muffler protector
(2)
Muffler screen
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