6-13
TROUBLESHOOTING
OTHER SYMPTOMS
Symptoms Major causes Remedies
Engine exhaust is white or
bluish
• Excessive engine oil • Adjust to the specified level.
Refer to page 5-17.
• Insufficient engine warm-up. • Perform the warm-up
operation.
Refer to page 3-5.
• Engine control system is
faulty.
• Adjust or repair (ask your
sales or service dealer).
• Fuel line is faulty. • Adjust or repair (ask your
sales or service dealer).
• Prolonged idling (approx.
two hours or more)
• Increase the engine RPM
and check for smoke.
• Poor fuel • Replace the fuel.
Engine exhaust is
occasionally black
• Air cleaner is clogged • Clean the air cleaner.
Refer to page 5-34.
• Engine control system is
faulty.
• Adjust or repair (ask your
sales or service dealer).
• Fuel line is faulty. • Adjust or repair (ask your
sales or service dealer).
• Clogging in the exhaust line. • Adjust or repair (ask your
sales or service dealer).
Irregular noise is produced
from the engine
(combustion or mechanical
noise)
• Low quality fuel is being
used
• Replace the fuel.
• Engine is overheating • Refer to “If the engine
overheats” on page 6-3.
• Damage inside the muffler • Replace the muffler.
For replacement, ask your
sales or service dealer.