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SYMPTOM
• White exhaust smoke
TROUBLESHOOTING
INFORMATION
If your engine does not operate properly, refer to
the troubleshooting chart or consult your
authorized Yanmar industrial engine dealer or
distributor.
Supply the authorized Yanmar industrial engine
dealer or distributor with the following information:
• Model name and serial number of your
engine
• The driven machine type (tractor, generator,
skid steer loader), manufacturers name,
model and serial number
• How long the engine has been in service (the
number of engine hours or the number of
calendar months)
• Operating conditions when problem occurs:
Engine rpm
Color of exhaust smoke
Type of diesel fuel
Type of engine oil
Any abnormal noises or vibration
Operating environment such as high
altitude or extreme ambient temperatures,
etc.
• Engine maintenance history and previous
problems
• Other factors that contribute to the problem
L-N Operation Manual
PROBABLE CAUSE
• Improper diesel fuel
• Faulty spray pattern of fuel
injection
• Fuel injection timing delay
• Engine burning oil
TROUBLESHOOTING
ACTION
• Replace with recommended
diesel fuel
• See authorized Yanmar
industrial engine dealer or
distributor
REFER TO
Diesel Fuel
Specifications on
page 24
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Table of Contents
Troubleshooting
