Jonsered 6000+ Operator's Manual page 32

Air filter
The air filter must be regularly cleaned from dust
and dirt in order to avoid:
• Carburettor malfunctions
• Starting problems
• Engine power reduction
• Unnecessary wear on
the engine parts
• Abnormal fuel consumption
Clean the air filter daily or more often if the air is
exceptionally dusty in the working area.
• Disassemble the air filter by removing the
cylinder cover and unscrew the filter. When
reassembling, make sure that the filter is tight
against the filter holder. Clean the filter by
brushing or shaking it.
• A more thorough cleaning of the filter is
obtained by washing it in water and soap.
An air filter, which is used for some time, cannot be
cleaned completely. Therefore it must be replaced
by a new one, with regular intervals.
IMPORTANT! A damaged air filter must always
be replaced.
Spark plug
The spark plug condition is influenced by:
• An incorrect carburettor setting.
• Wrong fuel mixture (too much oil in the
gasoline).
• A dirty air filter.
These factors cause deposits on the spark plug
electrodes, which may result in malfunction and
starting difficulties.
If the engine is low on power, difficult to start or
runs poorly at idling speed, always check the
spark plug first.
If the spark plug is dirty, clean it and check the
electrode gap. Readjust if necessary. The correct
gap is 0.5 mm (.020"). The spark plug should be
replaced after about a month in operation or earlier
if the electrodes are badly eroded.
IMPORTANT! Always use the recommended spark
plug type. An incorrect spark plug can severely
damage the piston/cylinder.
32
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MAINTENANCE
0,5 mm