30
FIG. 30 – CHECK ENGINE OIL
FIG. 29 – SPARK PLUG CLEANING
Every year or 100 hours of operation
14.2.3) Spark plug cleaning
(Ref. to Fig. 29)
– Using a 4 mm allen key remove the fi xing screw on the top of the red cover.
– Disconnect the spark plug wire lead and remove the spark plug with the key supplied.
Inspect the spark plug. Replace it if damaged or badly fouled, if the sealing washer is in poor
condition, or if the electrode is worn. Measure the spark plug electrode gap, correct the gap if
necessary by carefully bending the side electrode.
The gap should be: 0.60-0.70 mm (0.024-0.028 in).
– Install the spark plug carefully, by hand, to avoid
crossthreading.
– When installing a new spark plug, tighten 1/2 turn
with the key to compress the washer.
When reinstalling the original spark plug, tighten
1/8-1/4 turn with the key to compress the washer.
A loose spark plug can overheat and damage
the engine. Overtightening the spark plug can
damage the threads in the cylinder head
.
– Attach the spark plug cap to the spark plug.
Install the top cover, and tighten the fi xing screw.
– In case of plug replacement, use type
NGK, CM5H,
CMR5H
or equivalents.
13.2.4) Check engine oil (each use)
(Ref. to Fig. 30)
Before checking or refi lling engine oil, be sure the machine is located on a stable, level surface and
stopped.
– Remove the oil fi ller cap/dipstick and wipe it clean.
– Insert the oil fi ller cap/dipstick without screwing it into the oil fi ller neck, then remove it to check
the oil level shown on the dipstick.
If the oil level is near or below the lower limit mark on the dipstick, fi ll to the bottom edge of the
oil
fi ll hole with the recommended oil (see
§ 1
).
– Change oil if it is contaminated.
– Wipe off any spilled oil before starting the engine.
– Reinstall the oil fi ller cap/dipstick and tighten securely.
spark plug
OIL FILL HOLE
(bottom edge)
LOWER LIMIT
OIL FILLER CAP/DIPSTICK
MITE
ERIORE
LIMITE
SUPERIORE
UPPER LIMIT
UPPER LIMIT