Spark plug service
Recommended spark plugs: BPR5ES (NGK)
W 1 GEPR-U (ND)
To ensure proper engine operation, the spark plug must be properly
gapped and free of deposits.
If the engine has been runnig, the muffler will be very hot. Be careful not
to touch the muffler.
1. Remove the spark plug cap.
2. Clean any dirt from around the spark plug base.
3. Use the wrench supplied in the tool kit to remove the spark pulg.
4.Visually inspect the spark plug. Discard it if the insulator is cracked or
chipped. Clean the spark plug with a wire brush if it is to be reused.
5. Measure the plug gap with a feeler gauge.
Correct as necessary by carefully bending the side electrode.
The gap should be:
0.70-0.80 mm (0.028-0.031 in)
0.70-0.80 mm
(0.028-0.031 in)
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