G-14
WG972-E2, DF972-E2, WSM
G GENERAL
[6] CHECK POINTS OF EVERY 1000 HOURS
Replacing the Spark Plug
1. Disconnect the spark plug cap (1).
2. Remove the spark plug.
3. Replace the new spark plug.
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Checking the Hot Water Hoses (DF972-E2)
1. Check the hot water hoses (1) for damage.
2. If the hot water hose is damaged, replace it.
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Checking the Vacuum Lock Hoses (DF972-E2)
1. Check the vacuum lock hose (1) for damage.
2. If the hose is damaged, replace it.
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Draining Tar (Vaporizer for DF972-E2)
1. Run the engine until it is warmed up.
2. The shut off valve is shut and the engine is stopped naturally.
3. Place an oil pan underneath the drain port.
4. Remove the drain plug (4), and drain tar.
5. Tighten the plug.
■
•Apply a liquid gasket (Three Bond 1104 or equivalent) to the
thread of the plug.
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Tightening torque Spark plug
19.6 to 24.5 N·m
2.0 to 2.5 kgf·m
14.5 to 18.1 ft-lbs
(1) Spark Plug Cap
(1) Hot Water Hoses to Vaporizer
(1) Vacuum Lock Hoses
(1) Vaporizer
(2) Water Hose
(3) Wrench
(4) Drain Plug
(5) Liquid Gasket
(6) Joint
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