Checking The Spark Plug; Suction Head In The Fuel Tank - Makita EM4351UH Original Instruction Manual

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 - 0.8 mm
(0.028" - 0.032"). If the gap is too wide or too narrow, adjust it. If the spark
plug is clogged or contaminated, clean it thoroughly or replace it.
Place the plug cap properly as illustrated after checking.
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.)
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 filter (1) of the suction head is used to filter the fuel required by the
carburetor.
– A periodical visual inspection of the fuel filter is to be conducted. Open the
tank cap, use a wire hook and pull out the suction head through the tank
opening. If the filter is hard or clogged up, replace it.
– Replace the fuel filter at least quarterly to ensure an enough fuel supply to the
carburetor. Otherwise an insufficient fuel supply will cause the engine start
failure and limited maximum speed.
– After checking, cleaning or replacing, fix the fuel filter onto the fuel pipe with
the hose clamp. Push the fuel filter in all the way to the bottom of the fuel
tank.
0.7 mm - 0.8 mm
(0.028" - 0.032")
24
Gear case
Grease hole
Fuel pipe
Hose clamp
Fuel filter
Fuel filter