Spark Plug Service - Honda H5013 Owner's Manual

5. Spark plug service.
Recommended spark plug: BPRGES-11 (NGK)
W20EPR-U 11 (ND)
m
Touching a hot engine or exhaust system can cause serious
burns. Let the engine cool before performing maintenance.
1 IMPORTANT NoT'CE 1 Spark plugs of the wrong heat range can cause
engine damage.
For good performance, the spark plug must be properly gapped and free of
deposits.
1. Open the engine hood and remove the spark plug cap.
2. Clean any dirt from around the spark plug base.
3. Use a spark plug wrench to remove the spark plug.
WRENCH
4. Visually inspect the spark plug. Discard it if there is apparent wear or 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.
The gap should be 1.0-l .l mm (0.039-0.043 in). Correct as
necessary by carefully bending the side electrode.
1.0-1.1 mm
(0.039-0.043 in1
SIDE
ELECTRODE
79