PIAGGIO ZIP 4T - Overhaul Data; Assembly Clearances; Cylinder - Piston Assy

Name Torque in Nm
Oil sump screws 8 ÷ 10
Inlet manifold screw 7 ÷ 9
Carburettor/manifold clamp screw 1.2 ÷ 1.5 Nm
Screws fixing cables to starter motor 1.5 ÷ 2.5
Starter screws 11 ÷ 13
Transmission cover screws 11 ÷ 13 Nm
Start-up lever screw 11 ÷ 13
Rear brake lever screw 11 ÷ 13
Crankcase cooling cover screw 2 ÷ 2.5
Nut locking clutch unit on pulley 55 ÷ 60 Nm
Crankshaft pulley nut 18 ÷ 20 + 90° ± 10°
Driven pulley shaft nut 40 ÷ 44 Nm
Hub oil drainage screw 3 ÷ 5 Nm
Rear hub cap screws 24 ÷ 26 Nm
Crankcase half union screw 8 ÷ 10
Overhaul data
Assembly clearances
Cylinder - piston assy.
COUPLING BETWEEN PISTON AND CYLINDER
Name
Initials Cylinder Piston Play on fitting
Cylinder Ø C 50
+0.021-0.007
A 49.993 ÷ 50.000 49.948 ÷ 49.955 0.038 ÷ 0.052
Cylinder Ø C 50
+0.021-0.007
B 50.000 ÷ 50.007 49.955 ÷ 49.962 0.038 ÷ 0.052
Piston Ø P 49.962
±0.014
C 50.007 ÷ 50.014 49.962 ÷ 49.969 0.038 ÷ 0.052
Piston Ø P 49.962
±0.014
D 50.014 ÷ 50.021 49.969 ÷ 49.976 0.038 ÷ 0.052
Cylinder 1st Oversize Ø
C 50.2+0.021-0.007
A1 50.193 ÷ 50.200 50.148 ÷ 50.155 0.038 ÷ 0.052
Cylinder 1st Oversize Ø
C 50.2+0.021-0.007
B1 50.200 ÷ 50.207 50.155 ÷ 50.162 0.038 ÷ 0.052
Piston 1st Oversize Ø P
50.162±0.014
C1 50.207 ÷ 50.214 50.162 ÷ 50.169 0.038 ÷ 0.052
Characteristics MSS ZIP 100 4T
CHAR - 12