Specifications - Yamaha WR450F Owner's Manual

SPECIFICATIONS

Dimensions:
Overall length:
2315 mm (91.1 in)
Overall width:
1
825 mm (32.5 in)
Overall height:
1275 mm (50.2 in)
2
Seat height:
960 mm (37.8 in)
Wheelbase:
3
1475 mm (58.1 in)
Ground clearance:
4 335 mm (13.19 in)
Minimum turning radius:
2400 mm (94.5 in)
5
Weight:
Curb weight:
129 kg (284 lb)
6
Technical permissible mass (Maximum load +
curb weight):
219 kg (483 lb)
7
Noise and vibration level:
Noise level (77/311/EEC):
80.2 dB(A)
8
Vibration on seat (EN1032, ISO5008):
Will not exceed 0.5 m/s
9
Vibration on handlebar (EN1032, ISO5008):
Will not exceed 2.5 m/s
Engine:
Engine type:
Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Single cylinder
EAU50975 Displacement:
449 cm
Bore  stroke:
95.0  63.4 mm (3.74  2.50 in)
Compression ratio:
12.30 : 1
Starting system:
Electric starter and kickstarter
Lubrication system:
Dry sump
Engine oil:
Recommended brand:
YAMALUBE
Type:
SAE 10W-40, 10W-50, 15W-40, 20W-40 or
20W-50
0
2
–20 –10 0
2
Recommended engine oil grade:
API service SG type or higher, JASO stan-
dard MA
Engine oil quantity:
Without oil filter element replacement:
0.95 L (1.00 US qt, 0.84 Imp.qt)
3
10 30 50 70 90 110 130 ˚F
SAE 10W-40
SAE 10W-50
SAE 15W-40
SAE 20W-40
SAE 20W-50
10 20 30 40 50 ˚C
8-1
With oil filter element replacement:
1.00 L (1.06 US qt, 0.88 Imp.qt)
Cooling system:
Radiator capacity (including all routes):
1.04 L (1.10 US qt, 0.92 Imp.qt)
Air filter:
Air filter element:
Wet element
Fuel:
Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
7.2 L (1.90 US gal, 1.58 Imp.gal)
Fuel reserve amount:
3.0 L (0.79 US gal, 0.66 Imp.gal)
Fuel injection:
Throttle body:
ID mark:
1DX1 00
Spark plug(s):
Manufacturer/model:
NGK/CR8E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Clutch:
Clutch type:
Wet, multiple-disc
Transmission:
Primary reduction ratio:
2.652 (61/23)
Final drive:
Chain
Secondary reduction ratio:
3.357 (47/14)