(Iii) Inspection Of Spark Plug - Baja WD250U Service Manual

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(III) Inspection of spark plug

1. Rest the vehicle on level ground and clean the
spark plug with compressed air to avoid the dust
entering the engine.
2. Remove the spark plug (1)
The standard spark plug: DTRTC, if not correct,
replace it.
3. Inspection of spark plug
a. Electrode (1)
Worn or damaged, replace it
b. Insulator (2) color
Brown or light brown is normal condition
If the color is clearly different, check the engine.
4. Clean the spark plug
Clean the spark plug with spark plug cleaner.
5. Measure the spark plug clearance (1) .
Measure with feeler gauge. If out of specification,
adjust.
Spark plug standard clearance: 0.6-0.7mm
6. Installment of spark plug
a. Clean the washer surface and spark plug surface
before installing the spark plug.
b. Tighten up the spark plug with hand before in-
stalling it according to specification.
Torque of Spark plug: 17.5N ·m
60