Spark Plug - Hyundai HYYW70 Instruction Manual

Maintenance

Spark Plug

For good performance, the spark plug must be properly gapped and free of deposits.
1 You MUST allow the engine to cool down before carrying out any maintenance.
2
Always replace with the same model spark plug as fitted.
3 To check spark plug, remove spark plug cap.
4
Remove spark plug using the supplied spark plug wrench.
5
Clean the spark plug electrode, making sure that there is no damage to the insulator or electrode.
6
The spark plug gap should be 0.70mm to 0.80mm. Check the gap by using a feeler gauge. Adjust
as necessary by carefully bending the side electrode to achieve the correct gap.
7
Refit the cleaned and adjusted spark plug by hand to avoid cross-threading.
8 After spark plug seats then tighten as necessary with a spark plug wrench but avoid
over-tightening.
9
Re-attach the spark plug cap.
19
24