1985-1990 Suzuki LT50 Service Manual, Page 34Get this manual
SER VICI NG EN GINE
CYLINDER
Decarbon the exhaust port and the upper part of
the cylinder, taking care not to damage the cyl
inder wall surfaceThe wear of the cylinder wall is determined from diameter reading taken at 20 mm from the top of th cy linder with cylinder gaugeIf the wear thus determined exceeds the limit indicated below, reo
work the bore to the next oversize by using a
boring machine or replace he cylinder with new
Oversize pistons are available in two sizes :
0.5 mm and 1.0 mm oversizes09900 20508
Cylinder gauge set
Service limit
41 .065 mm
(1.6 167 in)
After reworking the bore to an oversize, be sure to chamfer the edges of ports and smooth the chamfered edges with emery paperTo chamfer, use file, taking care not to nick the wall su rfaceNOTE,