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Periodic Maintenance Chart
Prevent accidental starting during engine service by removing the spark plug caps.
Maintenance
Check and replenish fuel
Check for fuel leakage
Check bolts, nuts and screws for looseness
Check cutting head tightness
Check throttle and engine switch
Check cutting guard
Check cooling air inlets
Check idle speed (head shouldn't turn)
Inject grease in to gear case assembly
Clean fuel filter
Clean fuel tank cap
Clean air cleaner element
Tighten bolts, nuts and screws
Clean spark plug and adjust electrode gap
Remove dust and dirt from cylinder fins
Remove carbon deposits on piston head and inside cylinder
Remove carbon deposits in the exhaust pipe of muffler
Clean screen of spark arrester
Check the sliding portion of crankshaft, connecting rod etc.
Fuel tube
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The service intervals indicated are to be used as a guide. Service should be performed more frequently as necessary by operating
condition.
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When damage or defect occurs in checked parts, replace with a new one.
: Service more frequently under dusty conditions.
: Service to be performed by an authorized equipment dealer.
Adjustment of Throttle Cable
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When setting the engine to equipments, adjust the throttle
cable in the following procedures:
C
A
B
D
E
F
A. Adjusting Screw
B. Lock Nut
C. Throttle Plate
D. Stopper
E. Swivel
F. Idle Screw
8
English
MAINTENANCE AND ADJUSTMENT
1. Remove the air cleaner cap.
Loose the lock nut.
2. Turn the adjusting screw.
Be sure that the idle screw
touches throttle plate at the
swivel and the play of the
throttle cable is around 2 mm.
3. Squeeze the throttle lever. Be
sure that throttle plate touches
the stopper.
4. Tighten the lock nut.
WARNING
First
Daily
20 hours
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It is recommended to replace every 3 years
NOTE
Fuel Tank Cap Service
D
A. Tank Cap
B. Breather Assembly
C. Fuel Tank
D. Breather Passage
Interval
Every
Every
20 hours
50 hours
100 hours
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A breather passage is
incorporated in the tank cap. If
A
the breather passage is clogged,
the fuel will not flow into the
carburetor, causing problems with
B
starting or running the engine.
At the same time, make sure
C
that the base of the breather
assembly is fitted firmly into the
groove inside the tank cap as
shown.
Every
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