Use and Care Manual
3. The appropriate clearance between two electrodes of spark plug
is 0.7 to 0.8 mm (0.028″ to 0.031″). Adjust to the correct clearance
when it is too wide or too narrow.
Clean thoroughly or replace the spark plug if it has accumulated car-
bon or contaminated.
For replacement, use NGK CMR6H.
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 damage 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 difculty of start-up or failure of engine speed increase.
Check the fuel lter regularly as follows:
1
2
3
► 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 foreign 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 specied by each local authority
for disposing the gasoline 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
14 ENGLISH