Troubleshooting - Yamaha WR250R Owner's Manual

Periodic maintenance and adjustment
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Troubleshooting

Although Yamaha motorcycles receive
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a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
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compression, or ignition systems, for
example, can cause poor starting and
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loss of power.
The following troubleshooting charts
represent quick and easy procedures
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for checking these vital systems your-
self. However, should your motorcycle
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require any repair, take it to a Yamaha
dealer, whose skilled technicians have
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the necessary tools, experience, and
know-how to service the motorcycle
properly.
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Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
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Yamaha parts, but they are often inferi-
or, have a shorter service life and can
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lead to expensive repair bills.
WARNING
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When checking the fuel system, do
not smoke, and make sure there are
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no open flames or sparks in the ar-
ea, including pilot lights from water
heaters or furnaces. Gasoline or
EAU25872
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
EWA15142
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