Replacing The Spark Plug; Checking The Ignition Spark; Checking The Muffler Screws - Makita EA3501F Instruction Manual

11
30
8
0,5 mm
9
10
12
13

Replacing the spark plug

CAUTION:
Do not touch the spark plug or plug cap if the engine is
running (high voltage).
Switch off the engine before starting any maintenance
work. A hot engine can cause burns. Wear protective
gloves!
The spark plug must be replaced in case of damage to the
insulator, electrode erosion (burn) or if the electrodes are
very dirty or oily.
Remove the filter cover (see "Cleaning the air filter").
Pull the plug cap (8) off the spark plug. Use only the
combination wrench supplied with the saw to remove the
spark plug.
Electrode gap
The electrode gap must be 0.5 mm.
CAUTION: Use only the following spark plugs:
NGK CMR7A-5.

Checking the ignition spark

Insert combination tool between hood and cylinder as shown.
CAUTION! Do not insert the combination tool into the
spark plug hole! Make contact only with the cylinder
(otherwise you might damage the engine).
Using insulated pliers, press the unscrewed spark plug (9)
against the combination tool (away from the spark plug hole)
with the spark plug cap firmly on the plug.
Put combination switch (10) in the ON position.
Pull the starter cable hard.
If the function is correct, an ignition spark must be visible
near the electrodes.

Checking the muffler screws

Unscrew 3 screws (11) and remove the upper half of the
muffler (12).
Note: For saw models with catalytic converters, remove the
converter along with the upper muffler half.
The screws on the bottom muffler half (13) are now
accessible, and it is possible to check them for tightness.
If they are loose, tighten by hand (Caution: do not over-
tighten).