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7.3 Maintenance of Spark Plug
Please do the job with a special tool
7.3.1 Disconnect the spark plug cap and the spark
plug, clear the dirt around the spark plug (Figure 39)
7.3.2 Remove the spark plug with a special tool
(Figure 40)
7.3.3 Check the spark plug, if the insulator is broken,
have the spark plug replaced. Do away with carbon fouling around the spark plug with a metal
brush. (Figure 41)
7.3.4 Check the spark plug clearance to see if it is between 0.7-0.8mm, adjust it if necessary (Figure
42)
7.3.5 Re-mount the spark plug and its cap. (Figure 43)
Spark Plug recommended
: F7TC
NOTE
Screw in half round more after the spark plug compresses its
washer if a new spark plug is used. Screw in one-fourth
round more only if the
old one is used.
CAUTION The spark plug must be tightened securely, or it may result in machine damage
owing to over-heating.
CAUTION Please be careful to choose the heat value of the spark plug. Please adopt spark
plug of recommended or equivalent model and type
7.4 Maintenance of Fuel Filter Cup
7.4.1 Set the fuel switch to OFF position, Dismantle the fuel filter cup and gauze
(Figure 44)
7.4.2 Clean the fuel filter cup and gauze.
7.4.3 Mount the fuel filter cup and gauze to their original position.
(Figure 45)
