Maintenance
Spark plug
28
Spark plug
Use only the following products:
•
NHSP LD F6RTC
•
NGK BPR6ES
•
Champion RN11YC
•
The included tool
•
A cool motor
Fig. 16: Spark plug connector
How to check the spark plug:
1. Pull the spark plug connector off the motor (see Fig. 16).
2. Apply the spark plug wrench (included).
3. Screw the spark plug out.
4. The spark plug should be light to dark brown.
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Check the electrode gap with a gauge. It should be
0.6 mm to 0.7 mm (see Fig. 17).
If the insulator's ceramics are damaged, the plug must be
replaced.
If the plug is sooty or black, this means that the mixture is
too rich (short-term operation, choke activated too long).
Clean the plug with a spark plug brush (copper wire!). A
steel wire brush can destroy the plug under some cir-
cumstances.
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Spark plug type
Requirements
Checking the spark plug
