Honda EX800 Owner's Manual page 21

Spark plug service
Recommended spark plug: BPR4HS-10 (NGK)
or W14FPRULlO (ND)
/
To ensure proper engine operation, the spark plug must be properly gapped
and free of deposits.
1. Remove the spark plug cap.
2. Use the wrench supplied in the tool kit to remove the spark plug.
3. 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.
4. Measure the plug gap with a feeler gauge.
The gap should be 0.9-l'.O mm (0.035-0.039 in). Correct as necessary by
bending the side electrode.
0.9 mm-l.0 mm
10.035-0.039 in)
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