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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.U37S61E0.book Page 61 Tuesday, June 2, 2009 10:33 AM
10-1
10
EBU25960
SPECIFICATIONS
Dimensions:Overall length:
1991 mm (78.4 in)
Overall width:
1093 mm (43.0 in)
Overall height:
1120 mm (44.1 in)
Seat height:
850 mm (33.5 in)
Wheelbase:
1233 mm (48.5 in)
Ground clearance:
245 mm (9.6 in)
Minimum turning radius:
3000 mm (118 in)Weight:With oil and fuel:
YFM450FAZ 289.0 kg (637 lb)
YFM45FGHZ 285.0 kg (628 lb)
YFM45FGZ 285.0 kg (628 lb)Noise and vibration level:Noise level (77/311/EEC):
YFM45FGHZ 78.3 dB(A)
YFM45FGZ 78.3 dB(A)
Vibration on seat (EN1032, ISO5008):
YFM45FGHZ Will not exceed 0.5 m/s²
YFM45FGZ Will not exceed 0.5 m/s²Vibration on handlebar (EN1032, ISO5008):
YFM45FGHZ Will not exceed 2.5 m/s²
YFM45FGZ Will not exceed 2.5 m/s²
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
421 cm³
Bore × stroke:
84.5 × 75.0 mm (3.33 × 2.95 in)
Compression ratio:
10.00 :1
Starting system:
Electric and recoil starter
Lubrication system:
Wet sumpEngine oil:Recommended brand:
YAMALUBE
U37S61E0.book Page 1 Tuesday, June 2, 2009 10:33 AM
