Spark Plug - McCulloch B40 P ELITE Operator's Manual

S1154653-38,B40 B,P ELITE_1.fm Page 24 Wednesday, March 14, 2012 7:51 AM

Spark plug

The spark plug condition is influenced by:
• Incorrect carburettor adjustment.
• An incorrect fuel mixture (too much or incorrect type
of oil).
• A dirty air filter.
These factors cause deposits on the spark plug
electrodes, which may result in operating problems and
starting difficulties.
If the machine is low on power, difficult to start or runs
poorly at idle speed: always check the spark plug first
before taking any further action. If the spark plug is dirty,
clean it and check that the electrode gap is 0,9-1,0 mm.
The spark plug should be replaced after about a month in
operation or earlier if necessary.
0,9 - 1,0 mm
CAUTION! Always use the recommended spark plug
type! Use of the wrong spark plug can damage the piston/
cylinder. Check that the spark plug is fitted with a
suppressor.
24 – English
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