2
Spark Plug
Spark Plug recommendation
Do not use any spark plug other than the one recommended in the
heat recommended.
NOTICE:
If you use a spark plug in the improper heat range you can cause
engine damage.
Spark Plug Replacement:
1) Clean any/all dirt around the spark plug base.
2) Disconnect the spark plug caps and make certain you do not
damage the wires.
3) Remove the spark plug using the spark plug wrench provided in
the tool kit.
4) Inspect the electrodes on the spark plug for corrosion and
deposits, if it has great corrosion replace the plug.
5) Using a wire-type feeler, check the gap on every new spark plug.
If an adjustment is needed, bend the electrode carefully, the gap
should be: 0.024-0.028in (0.60-0.70mm).
6) Thread spark plug in by hand so there is no cross-threading.
7) Tighten, old but still good, spark plug: 1/8-1/4 turn after it seats.
Tighten new spark plug: 1/2 turn after it seats.
8) Reinstall the spark plug caps.
NOTICE:
Incorrect tightening of the spark plug
can cause severe damage to the engine.
Too loose can damage piston, too tight
can damage the threads.
Standard spark plug
MEIYA-D8RTC/NGK-DR8EA/CHAMPION-RA8YC
↓
↓
Spark plug gap
↓
Electrode
↓