TROUBLESHOOTING
6LY3 Operation Manual 117
TROUBLESHOOTING
INFORMATION
If your engine does not operate properly,
refer to the troubleshooting chart or see
your authorized Yanmar marine dealer or
distributor.
Supply the authorized Yanmar marine
dealer or distributor with the following
information:
• Model name and serial number of your
engine
• Boat name, hull material, size (tons)
• Use, type of boating, number of hours
run
• Total number of operation hours (refer
to hourmeter), age of boat
• Operating conditions when the
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
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