POWX5130 EN
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▪ The spark plug should be light to dark brown (Standard electrode color: Tan Color). A
black spark plug indicates that the mixture is too rich (choke used for too long, frequent
running for short periods).
▪ Clean the spark plug with a spark plug brush. (This has copper bristles - do not use a steel
brush, otherwise you will damage the spark plug!)
▪ Check the gap between the electrodes with a gauge. It should be between 0.6 and 0.8
mm. If necessary, adjust the gap by carefully bending the electrode. If the gap is too wide,
the ignition spark is too weak or may be completely absent. If the gap is too small, the
electrode becomes burnt, and the plug will not spark reliably.
▪ If the electrode is burnt, or the ceramic insulator is damaged, replace the spark plug. Use
spark plugs with the same charasteristics.
▪ Re-place the spark plug in its housing and screw it tight by hand. The spark plug must
allow itself to be screwed in very easily. - otherwise unscrew again, check the thread for
foreign bodies and screw in again (straight).
▪ Use a plug spanner to tighten the hand-tightened spark plug by a further quarter revolution
and no more, otherwise the thread will be damaged.
▪ Re-place the spark plug cable on the spark plug and ensure that it is seated tightly.
12 SERVICE / REPAIRS
▪ Repairs may be carried out by specialized personnel only. For this, use a specialist
workshop.
▪ For repairs, only parts may be used which correspond to the original machine details. This
machine contains electrical and mechanical parts which are essential for protection
against sources of danger.
