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20
CLEANING OF FUEL FILTER
WARNING: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Monthly (every 50 operating hours)
Suction head in the fuel tank
–The fuel filler (1) of the suction head is used to filler the fuel required by the
carburetor.
–A periodical visual inspection of the fuel filter is to be conducted. For that
purpose open the tank cap, use a wire hook and pull out the suction head
through the tank opening. Filters found to have hardened, been polluted or
clogged up are to be replaced.
–Insufficient fuel supply can result in the admissible maximum speed being
exceeded. It is therefore important to replace the fuel filter at least quarterly
to ensure satisfactory fuel supply to the carburetor.
REPLACEMENT OF FUEL PIPE
CAUTION: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Daily (every 10 operating hours)
Replacement: Annually (every 200 operating hours)
Replace the fuel pipe every year, regardless of operating frequency. Fuel
leakage may lead to fire.
If any leakage is detected during inspection, replace the oil pipe immediately.
INSPECTION OF BOLTS, NUTS AND SCREWS
–Retighten loose bolts, nuts, etc.
–Check for fuel and oil leakage.
–Replace damaged parts with new ones for safety operation.
CLEANING OF PARTS
–Keep the engine always clean.
–Keep the cylinder fins free of dust or dirt. Dust or dirt adhering to the fins will
cause seizure.
Fuel pipe
House clamp
Fuel
filter(1)
Fuel pipe
0.7mm-0.8mm
(0.028”-0.032”)
CHECKING THE SPARK PLUG
–Only use the supplied universal wrench to remove or to install the spark
plug.
–The gap between the two electrodes of the spark plug should be 0.7-0.8mm
(0.028”-0.032”). If the gap is too wide or too narrow, adjust it. If the spark
plug is clogged with carton or fouled, clean it thoroubhly or replace it.
CAUTION : Never touch the spark plug connector while the engine is running
(danger of high voltage electric shock).
SUPPLY OF GREASE TO GEAR CASE
–Supply grease (Shell Alvania 2 or equivalent) to the gear case through the
grease hole every 30 hours. (Genuine MAKITA grease may be purchased
from your MAKITA dealer.)
REPLACEMENT OF GASKETS AND PACKINGS
In reassembling after the engine is dismounted, be sure to replace the gaskets and packings with new ones.
Any maintenance of adjustment work that is not included and described in this manual is only to be performed by Authorized Service Agents.
Gear case
Grease hole