KYMCO MX’er 125 - Cylinder Removal

8. CYLINDER/PISTON
8
-
3
MX’er SYSTEM
SPECIFICATIONS
Mx
’
er 150
Standard (mm)
Service Limit (mm)
I.D. 62.03 62.045 
Warpage  0.05
Cylindricity  0.05
True roundness  0.05
Ring
-
to
-
groove
Top 0.015 0.055 0.09
clearance
Second 0.015 0.055 0.09
Top 0.10 0.25 0.5
Piston,
Ring end gap Second 0.10 0.25 0.5
piston ring
Oil side rail 0.2 0.7 
Piston O.D. 61.96 62 
Piston O.D. measuring position 5mm from bottom of skirt 
. Piston-to-cylinder clearance 0.010 0.040 0.1
Piston pin hole I.D. 15.002 15.008 15.04
Piston pin O.D 14.994 15.000 14.96
Piston-to-piston pin clearance 0.002 0.014 0.02
Connecting rod small end I.D. bore 15.016 15.034 15.06
Mx
’
er 125
S
tandard (mm)
Service Limit (mm)
I.D. 56.53 56.545 
Warpage  0.05
Cylindricity  0.05
True roundness  0.05
Ring
-
to
-
groove
Top 0.015 0.055 0.09
clearance
Second 0.015 0.055 0.09
Top 0.10 0.25 0.5
Piston,
Ring end gap Second 0.10 0.25 0.5
piston ring
Oil side rail 0.2 0.7 
Piston O.D. 56.46 56.5 
Piston O.D. measuring position 5mm from bottom of skirt 
. Piston-to-cylinder clearance 0.010 0.040 0.1
Piston pin hole I.D. 15.002 15.008 15.04
Piston pin O.D 14.994 15.000 14.96
Piston-to-piston pin clearance 0.002 0.014 0.02
Connecting rod small end I.D. bore 15.016 15.034 15.06
CYLINDER REMOVAL
Turn the cam chain tension screw clockwise to
Cylinder
Cylinder