SPEC
2 - 8
MAINTENANCE SPECIFICATIONS
Clutch:
Friction plate thickness
2.9 ~ 3.1 mm
(0.114 ~ 0.122 in)
2.7 mm
(0.106 in)
Quantity
9
----
Clutch plate thickness
1.1 ~ 1.3 mm (0.043 ~ 0.051 in)
----
Quantity
8
----
Warp limit
----
0.1 mm
(0.004 in)
Clutch spring free length
39.1 mm (1.54 in)
38.1 mm
(1.50 in)
Quantity
5
----
Clutch housing thrust clearance
0.10 ~ 0.35 mm
(0.0039 ~ 0.0138 in)
----
Clutch housing radial clearance
0.010 ~ 0.044 mm
(0.0004 ~ 0.0017 in)
----
Clutch release method
Inner push, cam push
----
Shifter:
Shifter type
Cam drum and guide bar
----
Guide bar bending limit
----
0.05 mm
(0.002 in)
Kickstarter:
Type
Kick and ratchet type
----
Carburetor:
USA
EUROPE
CDN, ZA,
AUS, NZ
Type/manufacturer
FCR-MX37/
KEIHIN
←
←
I. D. mark
5PH1 00
5PH2 10
5PH4 20
Main jet
(M.J)
#170
←
←
Main air jet
(M.A.J)
#200
←
←
Jet needle
(J.N)
OBELP-3
OBEGP-4
OBEHP-4
Cutaway
(C.A)
1.5
←
←
Pilot jet
(P.J)
#42
←
←
Pilot air jet
(P.A.J)
#75
←
←
Pilot outlet
(P.O)
ø0.9
←
←
Pilot screw (example)
(P.S)
1-3/4
←
←
Bypass
(B.P)
ø1.0
←
←
Valve seat size
(V.S)
ø3.8
←
←
Starter jet
(G.S)
#72
←
←
Leak jet
(Acc.P)
#60
#105
←
Float height
(F.H)
8 mm (0.31 in)
←
←
Engine idle speed
1,700 ~
1,900 r/min
←
←
Intake vacuum
26.7 ~ 32.0 kPa
(200 ~ 240 mmHg,
7.87 ~ 9.45 inHg)
←
←
Item
Standard
Limit
Summary of Contents for WR250F(N)
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