McCulloch B40 P ELITE Operator's Manual download pdf (Page 24)

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24 – English

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.

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.

0,9 - 1,0 mm

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McCulloch B40 P ELITE Operator's Manual Page 24