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Yamaha WR450FX Owner's Service Manual page 33

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Clutch:
Friction plate thickness
Quantity
Clutch plate 1 thickness
Quantity
Warp limit
Clutch plate 2 thickness
Quantity
Warp limit
Clutch spring free length
Quantity
Clutch housing thrust clearance
Clutch housing radial clearance
Clutch release method
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
Item
MAINTENANCE SPECIFICATIONS
Standard
2.92–3.08 mm (0.115–0.121 in)
8
1.9–2.1 mm (0.075–0.083 in)
4
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1.5–1.7 mm (0.059–0.067 in)
3
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50.0 mm (1.97 in)
6
0.10–0.35 mm (0.0039–0.0138 in)
0.010–0.044 mm (0.0004–0.0017 in)
Inner push, cam push
Cam drum and guide bar
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Ratchet type
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)
2-8
Limit
2.8 mm (0.110
in)
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0.1 mm (0.004
in)
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0.1 mm (0.004
in)
49.0 mm (1.93
in)
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0.05 mm (0.002
in)
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