Troubleshooting - Yamaha YFM125GZ Owner's Manual

Tightening torques:
Front wheel nut:
1
55 Nm (5.5 m·kgf, 39.8 ft·lbf)
Rear wheel nut:
2
55 Nm (5.5 m·kgf, 39.8 ft·lbf)
3
EBU25720

Troubleshooting

4
Although Yamaha ATVs receive a thorough in-
spection before shipment from the factory, trouble
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may occur during operation. Any problem in the fu-
el, compression, or ignition systems, for example,
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can cause poor starting and loss of power.
The following troubleshooting chart represents a
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quick and easy procedure for checking these vital
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systems yourself. However, should your ATV re-
quire any repair, take it to a Yamaha dealer, whose
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skilled technicians have the necessary tools, expe-
rience, and know-how to service the ATV properly.
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Use only genuine Yamaha replacement parts. Im-
itation parts may look like Yamaha parts, but they
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are often inferior, have a shorter service life and
can lead to expensive repair bills.
EWB02280
WARNING
Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-
lot lights from water heaters or furnaces.
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