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3-9
INSP
ADJ
E
OIL INJECTION SYSTEM/POWER UNIT
OIL INJECTION SYSTEM
Oil line inspection
1. Inspect:
● Oil filter
Contaminants → Clean.
Frays/tears → Replace.
● Rubber seal
Cracks/wear → Replace.
● Oil hoses
● Oil tank
● Oil filler cap
Cracks/damage → Replace.
● Check valve
Malfunction → Replace.
CAUTION:
Do not allow the oil tank to become com-
pletely empty. If the oil tank becomes
empty the oil injection pump must be bled
to ensure proper oil flow, otherwise engine
damage may occur. Refer to “OIL PUMP” in
chapter 4.
POWER UNIT
Spark plug inspection
1. Inspect:
● Electrodes 1
Damage/wear → Replace.
● Insulator color 2
Distinctly different color → Check the
engine condition.
2. Clean:
● Spark plug
(with a spark plug cleaner or wire
brush)
Color guide:
Medium to light tan color:
Normal
Whitish color:
Lean fuel mixture
Air leak
Incorrect settings
Blackish color:
Overly rich mixture
Electrical malfunction
Excessive oil use
Defective spark plug
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