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8
EBU25740Troubleshooting Although Yamaha ATVs receive a thorough in-
spection before shipment from the factory, trouble
may occur during operation. Any problem in the fu-
el, compression, or ignition systems, for example,
can cause poor starting and loss of power.
The following troubleshooting charts represent
quick and easy procedures for checking these vital
systems yourself. However, should your ATV re-
quire any repair, take it to a Yamaha dealer, whose
skilled technicians have the necessary tools, expe-
rience, and know-how to service the ATV properly.
Use only genuine Yamaha replacement parts. Im-
itation parts may look like Yamaha parts, but they
are often inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWB02280Do 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.U2LB60E0.book Page 66 Thursday, March 21, 2013 10:20 AM
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EBU25961
SPECIFICATIONS
Dimensions:Overall length:2065 mm (81.3 in)
Overall width: 1180 mm (46.5 in)
Overall height:
1240 mm (48.8 in)
Seat height: 905 mm (35.6 in)
Wheelbase: 1250 mm (49.2 in)
Ground clearance:
275 mm (10.8 in)
Minimum turning radius: 3200 mm (126 in)Weight:With oil and fuel:
294.0 kg (648 lb)Noise and vibration level:Noise level (77/311/EEC):YFM550DE 79.0 dB(A)@2950 r/min
YFM550PE 79.0 dB(A)@2950 r/min (EUR)(FRA)(GBR)
YFM550PHE 79.0 dB(A)@2950 r/min
YFM550PLE 79.0 dB(A)@2950 r/min Vibration on seat (EN1032, ISO5008):
YFM550DE Will not exceed 0.5 m/s²
YFM550PE Will not exceed 0.5 m/s² (EUR)(FRA)(GBR)
YFM550PHE Will not exceed 0.5 m/s²
YFM550PLE Will not exceed 0.5 m/s²
Vibration on handlebar (EN1032, ISO5008): YFM550DE Will not exceed 2.5 m/s²
YFM550PE Will not exceed 2.5 m/s² (EUR)(FRA)(GBR)
YFM550PHE Will not exceed 2.5 m/s²
YFM550PLE Will not exceed 2.5 m/s²
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement: Single cylinder
Displacement: 558 cm³
Bore × stroke:
92.0 × 84.0 mm (3.62 × 3.31 in)
Compression ratio: 9.30 : 1
Starting system: Electric starter
Lubrication system:
Wet sumpEngine oil:Recommended brand:YAMALUBE
U2LB60E0.book Page 1 Thursday, March 21, 2013 10:20 AM
