MAINTENANCE INSTRUCTIONS
10
MAINTENANCE / CHECK-UP / REPAIRING
It is recommended to practice regular check-ups and maintenance in accordance with usage frequency to keep
your tool in its best condition and prolong life, reducing total running costs. This practice also protects you from
serious injury. Before maintenance, please release the start and stop device.
• Only use #10 lubricant, the tool should be lubricated at tool inlet.
• Do not replace the component or change the construction and design.
• If the component used is not the same as the original component supplied by the manufacturer,
the manufacturer shall not take responsibility.
• Keep the tool in a dry place when not in use.
DAILY CHECK-UP
• Check that all nuts and screws are securely tightened.
• Check fuel level. When filling up with fresh fuel, wipe up all spills and clean fuel tank.
• Check oil level of gear box through window. Oil level should be at the center of window. If lower than this
level, add oil.
WEEKLY MAINTENANCE
• Check the starter, especially the cord and return spring.
• Clean the exterior of the spark plug.
• Remove the spark plug and check the electrode gap. Adjust it to 0.6mm, or change the spark plug.
• Clean the cooling fins on the cylinder and check that the air intake at the starter is not clogged.
• Clean the air filter.
MONTHLY MAINTENANCE
• Rinse the fuel tank with gasoline.
• Clean the exterior of the carburetor and the space around it.
• Clean the fan and the space around it.
1. CARBURETOR ADJUSTMENT
1. When the engine is tested at the factory, the carburetor is properly adjusted.
Do not try to touch it.
2. When idle speed is higher or lower (engine will stop), adjust to correct speed
by idle adjustment screw. Turn clockwise for higher idle. Turn counter clock
wise for lower idle. (Fig. 5-1).
3. How to adjust the volume of inhaled oil (higher speed fuel adjustment)
Full open throttle lever, turn idle adjustment screw to right or left to look for the
peak idle speed. From this position, return adjustment screw to left 1/8-1/4 turn.
2. CHECK-UP SPARK CONDITION
1. Remove spark plug and touch it to metal part except spark plug mounting thread.
2. Pull recoil starter handle.
3. When in normal condition, you see a spark.
(FIG. 5-1)
VOLUME OF INHALED OIL
IDLE ADJUSTMENT SCREW
WARNING
Never touch spark plug to the area at spark plug mounting
thread since remaining gas might exploded.
WARNING
When pulling recoil starter handle, do not touch the metal part of
spark plug or you will get an electric shock.
Wipe and clean up fuel around spark plug area.
