SPEC
2 - 8
Crankshaft:
Crank width “A”
42.95 ~ 43.00 mm
(1.691 ~ 1.693 in)
----
Runout limit C
----
0.03 mm
(0.0012 in)
Big end side clearance “D”
0.10 ~ 0.40 mm
(0.0039 ~ 0.0157 in)
0.50 mm
(0.02 in)
Big end radial clearance “E”
0.010 ~ 0.025 mm
(0.0004 ~ 0.0010 in)
0.05 mm
(0.002 in)
Clutch:
Friction plate thickness
2.7 ~ 2.9 mm
(0.106 ~ 0.114 in)
2.6 mm
(0.102 in)
Quantity
5
----
Clutch plate thickness
1.1 ~ 1.3 mm (0.043 ~ 0.051 in)
----
Quantity
4
----
Warp limit
----
0.2 mm
(0.008 in)
Clutch spring free length
26.2 mm (1.03 in)
24.2 mm
(0.95 in)
Quantity
4
----
Clutch release method
Inner push, cam push
----
Push rod bending limit
----
0.5 mm
(0.02 in)
Automatic centrifugal clutch:
Clutch-in revolution
2,160 ~ 2,560 r/min
----
Clutch-stall revolution
3,300 ~ 3,800 r/min
----
Shifter:
Shifter type
Cam drum and guide bar
----
Kick starter:
Type
Ratchet type
----
Kick clip friction force
5.8 ~ 14.7 N
(0.59 ~ 1.50 kg, 1.3 ~ 3.3 lb)
----
Carburetor:
I. D. mark
5HN1 01
----
Main jet
(M.J)
#90
----
Main air jet
(M.A.J)
ø 1.1
----
Jet needle
(J.N)
4E9-2
----
Cutaway
(C.A)
2.5
----
Pilot outlet
(P.O)
ø 1.0
×
2.0
----
Pilot jet
(P.J)
#12.5
----
Valve seat size
(V.S)
ø 1.5
----
Starter jet 1
(G.S.1)
#37.5
----
Pilot air screw
1-3/4 turns out
----
Float height
(F.H)
15.5 ~ 16.5 mm (0.61 ~ 0.65 in)
----
Fuel level
(F.L)
2 ~ 3 mm (0.08 ~ 0.1 in)
----
Engine idle speed
1,400 ~ 1,600 r/min
----
Item
Standard
Limit
MAINTENANCE SPECIFICATIONS
C
C
D
A
E
Summary of Contents for TT-R90(R)
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