Operation Manual

In order to service the spark plug, you will need a spark plug wrench

(commercially available).

Recommended spark plugs:

BPRGES (NGK)

W20EPR-U (DENSO)

To ensure proper engine operation, the spark plug must be properly

gapped and free of deposits.

If the engine has been running, 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 plug.

PLUG WRENCH

PLUG CAP

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)