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28 – English
Maintenance
Check the level of the battery acid
Check that the level of the battery acid lies between the
markings. Top up the cells with distilled water only.
Ignition system
The engine is equipped with an electronic ignition system.
Only the spark plug requires maintenance.
For recommended spark plug, see Technical data.
Replacing the spark plug
1 Remove the ignition cable shoe and clean around the
spark plug.
2 Remove the spark plug with a 3/4” (19 mm) spark plug
socket wrench.
3 Check the spark plug. Replace the spark plug if the
electrodes are burned or if the insulation is cracked or
damaged. Clean the spark plug with a steel brush if it is to
be reused.
4 Measure the electrode gap with a gapping tool. The gap
should be 0.75 mm/0.030”. Adjust as necessary by
bending the side electrode.
5 Reinsert the spark plug, turning by hand to avoid
damaging the threads.
6 Tighten the spark plug, once it touches the seating, with
the spark plug spanner. Tighten the spark plug so that the
washer is compressed. A used spark plug should be
turned 1/8 of a turn from the seated position. A new spark
plug should be turned a 1/4 turn from the seated position.
7 Replace the ignition cable shoe.
Cleaning the engine and muffler
Keep the engine and muffler free from grass cuttings and dirt.
Grass cuttings steeped in petrol or oil on the engine can
increase the fire risk and impair cooling.
Allow the engine to cool before cleaning. If the dirt is mixed
with oil, remove it using a degreasing agent otherwise just
water and a brush.
Grass cuttings around the muffler dry quickly and constitute a
fire risk. Brush or wash them off when the muffler is cold.
!
WARNING! Procedures on contact with acid
External: Rinse well with plenty of water.
Internal: Drink large quantities of water or
milk. Contact a doctor as soon as possible.
Eyes: Rinse well with plenty of water.
Contact a doctor as soon as possible.
Batteries emit explosive gas. Sparks, flames
and cigarettes must absolutely not be
brought into the vicinity of the battery.
IMPORTANT INFORMATION
Fitting the wrong spark plug type can damage the engine.
IMPORTANT INFORMATION
Inadequately tightened spark plugs can cause overheating
and damage the engine. Tightening the spark plug too
much can damage the threads in the cylinder head.