Yamaha WR450F(R) Owner's Service Manual page 39

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Oil capacity:
Engine oil
Periodic oil change
With oil filter replacement
Total amount
Coolant capacity (including all routes):
Air filter:
Fuel:
Type
Tank capacity
Reserve
Carburetor:
Type
Manufacturer
Spark plug:
Type/manufacturer
Gap
Clutch type:
Transmission:
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Transmission type
Operation
Gear ratio: 1st
2nd
3rd
4th
5th
Chassis:
Frame type
Caster angle
Trail
Tire:
Type
Size (front)
Size (rear)
Tire pressure (front and rear)
GENERAL SPECIFICATIONS
1.0 L (0.88 Imp qt, 1.06 US qt)
1.1 L (0.97 Imp qt, 1.16 US qt)
1.2 L (1.06 Imp qt, 1.27 US qt)
1.6 L (1.41 Imp qt, 1.69 US qt)
Wet type element
Premium unleaded gasoline only with a research
octane number of 95 or higher.(Except for ZA)
Premium gasoline (For ZA)
10 L (2.2 Imp gal, 2.64 US gal)
1.2 L (0.26 Imp gal, 0.32 US gal)
FCR MX39
KEIHIN
CR8E/NGK (resistance type)
0.7 ~ 0.8 mm (0.028 ~ 0.031 in)
Wet, multiple-disc
Gear
62/22 (2.818)
Chain drive
50/14 (3.571)
Constant mesh, 5-speed
Left foot operation
29/12 (2.416)
26/15 (1.733)
21/16 (1.312)
21/20 (1.050)
21/25 (0.840)
Semi double cradle
27.2˚
118 mm (4.65 in)
With tube
80/100-21 51M (USA, CDN, ZA)
90/90-21 54R (EUROPE, AUS, NZ)
110/100-18 64M (USA, CDN, ZA)
130/90-18 69R (EUROPE, AUS, NZ)
100 kPa (1.0 kgf/cm
2 - 2
SPEC
2
, 15 psi)
2

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