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Model
XZ550RJ
Carburetor
Type/ Manufacturer/ Quantity
BD34/MIKUNl/2
LD. Mark
11 J01
Main Jet
IM.J.I
Front: 122.5
Rear: 127.5
Main Air Jet
IM.A.J.I
01.8
Throttle valve
(T.V.)
#120
Pilot Jet
(P.J.)
#60
Pilot Air Jet
(P.A.J.)
#120
Pilot Screw
IP.S.)
2±½
Valve Seat
(V.S.)
01.8
Starter Jet
IG.S.,I
#55
Starter Jet
(G.S.,1
00.8
Fuel Level
IF.LI
20 ± 1 mm 10.79 ± 0.04 in)
Float Height
(F.H.I
36 ± 1 mm 11 .72 ±0.04in)
Engine Idling Speed
1,300
±
50 r/min
Vacuum Pressure at Idling Speed
Above 180mm Hg (7.09in Hg)
Vacuum Synchronous Difference
Below
10
mm Hg (0.39 in Hg)
Lubrication System:
Oil Filter Type
Paper mesh
Oil Pump Type
Trochoid pump
Tip Clearance
0.12mm (0.0047inl
Side Clearance
0.03 - 0.08 mm (0.0012 -0.0031 in)
Bypass Valve Setting Pressure
98.07 ± 19.61 kPa 11.0 ± 0.2 kg/cm', 14.2 ±2.8 psi)
Relief Valve Operating Pressure
392.3 ± 49 kPa (4.0 ± 0.5 kg/cm', 56.9 ± 7.1 psi)
Lubrication Chart
8-10
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