Engine - Yamaha WR450F(Y) 2009 Owner's Service Manual

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Shifter:
Shifter type
Guide bar bending limit
Kickstarter:
Type
Carburetor:
I. D. mark
Main jet (M.J)
Main air jet (M.A.J)
Jet needle (J.N)
Cutaway (C.A)
Pilot jet (P.J)
Pilot air jet (P.A.J)
Pilot outlet (P.O)
Bypass (B.P)
Valve seat size (V.S)
Starter jet (G.S)
Leak jet (Acc.P)
Float height (F.H)
Engine idle speed
Intake vacuum
Hot starter lever free play
Lubrication system:
Oil filter type
Oil pump type
Tip clearance
Side clearance
Housing and rotor clearance
Bypass valve setting pressure
Cooling:
Radiator core size
Width
Height (Left/Right)
Thickness
Radiator cap opening pressure
Radiator capacity (total)
Water pump
Type
Item
MAINTENANCE SPECIFICATIONS
Standard
Cam drum and guide bar
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Ratchet type
USA, CDN, AUS,
NZ, ZA
5TJE E0
#162
ø2.0
NFNT
1.5
#45
#70
ø0.9
ø1.0
ø3.8
#65
#60
8 mm (0.31 in)
1,750–1,950 r/min
34.8–40.1 kPa
(261–301 mmHg,
10.28–11.85 inHg)
3–6 mm (0.12–0.24
in)
Paper type
Trochoid type
0.12 mm or less (0.0047 in or less)
0.09–0.17 mm (0.0035–0.0067 in)
0.03–0.10 mm (0.0012–0.0039 in)
40–80 kPa (0.4–0.8 kg/cm
psi)
120.2 mm (4.73 in)
260 mm (10.24 in)/240 mm (9.45 in)
22 mm (0.87 in)
2
110 kPa (1.1 kg/cm
0.57 L (0.50 Imp qt, 0.60 US qt)
Single-suction centrifugal pump
2-8
----
0.05 mm (0.002
in)
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EUROPE
5TJL L0
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#160
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NNHU
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#48
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0.20 mm (0.008
in)
0.24 mm (0.009
in)
0.17 mm
(0.0067 in)
2
, 5.69–11.38
----
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, 15.6 psi)
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Limit

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