Sym MaxSym 600i ABS Service Manual

7. Cylinder / Piston
7-3
Specification Unit：mm
LX60A
Item
Standard
Limit
Cylinder
I.D.
91.995~92.015
92.100
Out of round
-
0.050
Taper
-
0.050
Warpage
-
0.050
Piston/
Piston
ring
Clearance
between
piston ring and
ring groove
Top
0.015~0.050
0.090
2
nd
0.015~0.050
0.090
Piston ring end
gap
Too
0.150~0.300
0.500
2
nd
0.300~0.450
0.650
Oil
(side rail)
0.200~0.700
-
Piston O.D. (2
nd
)
91.430~91.480
91.350
Clearance between piston
and cylinder
0.010~0.040
0.100
ID of piston pin boss
22.002~22.008
22.020
Piston pin O.D.
21.997~22.000
21.960
Clearance between piston and piston pin
0.002~0.014
0.020
Connecting rod small end I.D.
22.020~22.041
22.071
Troubleshooting
Low or Unstable Compression Pressure
 Cylinder or piston ring worn out
Knock or Noise
 Cylinder or piston ring worn out
 Carbon deposits on cylinder head top-side
 Piston pin hole and piston pin wear out
Smoking in Exhaust Pipe
 Piston or piston ring worn out
 Piston ring installation improperly
 Cylinder or piston damage
Engine Overheat
 Carbon deposits on cylinder head top side
 Cooling pipe clogged or not enough in coolant
flow
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Sym MaxSym 600i ABS Specifications

General

Brand	Sym
Model	MaxSym 600i ABS
Category	Scooter
Language	English