Use and Care Manual

20
ENGLISH
0.7 mm – 0.8 mm (0.028″ – 0.031″)
4. To close the plug cover, make a half turn of
it, and press around the dented part.
1
► 1. Plug cover
Cleaning the fuel lter
CAUTION: Make sure there is no dam-
age on the fuel tank. If there are any damage
on the fuel tank, ask authorized service center
immediately for repair.
NOTICE: Clean the fuel lter regularly.
Clogged fuel lter may cause difculty of
start-up or failure of engine speed increase.
Check the fuel lter regularly as follows:
1
32
► 1. Fuel tank cap 2. Fuel lter 3. Hose clamp
1. Remove the fuel tank cap, drain the fuel to
empty the tank. Check the tank inside for any for-
eign materials. If any, wipe clean such materials.
2. Pull out the fuel lter with wire through the
fuel lling port.
3. If the fuel lter surface is contaminated,
clean it with gasoline.
NOTICE: Follow the method specied by
each local authority for disposing the gaso-
line used for cleaning the fuel lter.
NOTICE: Replace the fuel lter if it is
excessively contaminated.
4. After checking, cleaning or replacing, insert
the fuel lter into the fuel pipe and x it with the
hose clamp. Reset the fuel lter in the fuel tank
and tighten rmly the fuel tank cap.
Adjustment of idling speed
CAUTION: The carburetor is factory
adjusted. Never adjust other than idling
speed. For other adjustments, ask your autho-
rized service center.
Appropriate low-speed rotation is 2,800 min
-1
(rpm).
If it is necessary to change the rotation speed,
adjust the idle speed with a Phillips screwdriver.
If the engine stops or runs unsteadily at idle, turn
the adjusting screw to the right, and the idling
speed increases. If the machine blows too strong
at idle, turn the adjusting screw to the left, and
the idling speed drops.
1
► 1. Idling adjusting screw
Checking throttle valve
If the control cable is bent or caught, the throttle
valve does not contact with the idle adjusting
screw, and it prevents the engine from proper
idling. In such a case, reposition the control
cable to ensure proper valve movement.