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Model
Carburetors:
Type × Quantity
Manufacturer
I.D. mark
Main jet
(M.J)
Main air jet
(M.A.J)
Jet needle
(J.N)
Needle jet
(N.J)
Pilot jet
(P.J)
Pilot air jet
(P.A.J)
Pilot outlet
(P.O)
Bypass 1
(B.P.1)
(B.P.2)
(B.P.3)
(B.P.4)
(B.P.5)
Throttle valve
(Th.V)
Valve seat size
(V.S)
Starter jet
(G.S)
Float height
(F.H)
Fuel level (below the line on the float
chamber)
Throttle cable free play
Engine idle speed
Fuel pump:
Type
Manufacturer
Oil filter:
Oil filter type
Bypass valve opening pressure
Oil pump:
Oil pump type
Inner-rotor-to-outer-rotor-tip clearance 0.09 ~ 0.15 mm (0.004 ~ 0.006 in)
Outer-rotor-to-oil-pump-housing
clearance
Relief valve operating pressure
Oil pressure (hot)
MAINTENANCE SPECIFICATIONS
RS90RX/RS90GTX/RS90GTAX/RS90LTX/RS90LTGTX
CVK40 × 3
KEIHIN
8GM1 00
#148
#70
N425-8SJ00
W9554-26538#6
#45
#120
0.9
0.8
0.8
0.8
0.8
0.8
1020-870-80 (
1.2
#70
16 mm (0.630 in)
0.2 ~ 2.2 mm (0.008 ~ 0.087 in)
2.0 ~ 3.0 mm (0.08 ~ 0.12 in)
1,300 ~ 1,500 r/min
Diaphragm
8GM (MIKUNI)
Cartridge (paper)
78 ~ 118 kPa (0.78 ~ 1.18 kg/cm
Trochoidal
0.03 ~ 0.08 mm (0.001 ~ 0.003 in)
440 ~ 560 kPa (4.4 ~ 5.6 kg/cm
45 kPa (0.45 kg/cm
62
θ
= 10°)
2
, 11.1 ~ 16.8 psi)
2
, 62.6 ~ 79.6 psi)
2
, 6.40 psi) at 1,400 r/min
SPEC
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