h)
Use a soft cloth for cleaning.
i)
Do not use sharp and/or metal objects (e.g. a wire brush or metal spatula) for
cleaning, as these may damage the surface of the material from which the unit
is made.
j)
Change engine oil after the first month or 20 hours of operation. Thereafter,
change oil every 300 operating hours or every six months, whichever comes
first.
• To change engine oil, it is best done when the oil is warm because it is
thinner and flows more easily.
First unscrew the oil filler cap and then the drain plug, first putting a
container for used oil underneath it.
After draining the oil, close the drain plug tightly and wipe dry the area
around it from the rest of the used oil. You can refill the engine with fresh
oil.
CAUTION: heated oil is hot - risk of burns!
k)
Inspect the spark plug from time to time for wear and dirt.
• To access the spark plug, remove the ignition cable pipe under which the
plug is screwed into the engine.
Unscrew the spark plug and inspect the tip for dirt and burn marks.
If it only needs to be cleaned, remove deposits on the electrode, e.g. with
a wire brush or fine sandpaper, or rinse it in petrol extraction using a brush.
Check the electrode gap before reassembly and adjust if necessary.
Also check the gap at the electrode when installing a new spark plug.
IMPORTANT: It is best to remove a spark plug when the engine is cold or
has cooled down.