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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.U1CT61E0.book Page 61 Wednesday, April 20, 2011 6:36 PM
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EBU25961
SPECIFICATIONS
Dimensions:Overall length:1993 mm (78.5 in)
Overall width: 1093 mm (43.0 in)
Overall height:
1120 mm (44.1 in)
Seat height: 840 mm (33.1 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:
YFM450FAPB 287.0 kg (633 lb)
YFM45FGPB (panel wheel model) 281.0 kg (619 lb)
YFM45FGPB (cast wheel model) 284.0 kg (626 lb)
YFM45FGPHB 281.0 kg (619 lb)Noise and vibration level:Noise level (77/311/EEC):YFM45FGPB 78.3 dB(A)
YFM45FGPHB 78.3 dB(A)
Vibration on seat (EN1032, ISO5008): YFM45FGPB 0.6 m/s ²
YFM45FGPHB 0.6 m/s ² Vibration on handlebar (EN1032, ISO5008):
YFM45FGPB Will not exceed 2.5 m/s ²
YFM45FGPHB Will not exceed 2.5 m/s ²
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement: Forward-inclined single cylinder
Displacement:
421 cm ³
Bore × stroke:
84.5 × 75.0 mm (3.33 × 2.95 in)
Compression ratio: 10.00 : 1
Starting system:
Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:
YAMALUBE
U1CT61E0.book Page 1 Wednesday, April 20, 2011 6:36 PM
