Suzuki LT-Z250 Service Manual page 79

Oversize piston ring
The following oversize piston rings are used. They bear the fol-
lowing identification numbers.
SIZE
0.5 mm O.S.
Oversize oil ring
The following oversize oil ring is available as optional parts.
They bear the following identification mark.
SIZE
STD
0.5 mm O.S.
Oversize side rail
Just measure outside diameter to identify the side rail as there is
no mark or numbers on it.
PISTON PIN AND PIN BORE
Measure the piston pin bore diameter with the small bore gauge.
If the diameter exceeds the service limit, replace the piston with
a new one.
% Piston pin bore I.D.
Service Limit: 16.030 mm (0.6311 in)
& 09900-20602: Dial gauge (1/1 000 mm, 1 mm)
09900-22401: Small bore gauge (10 1 8 mm)
Measure the piston pin outside diameter at three positions with
the micrometer. If any measurement exceeds the service limit,
replace the piston pin with a new one.
% Piston pin O.D.
Service Limit: 15.980 mm (0.6291 in)
& 09900-20205: Micrometer (0
1st 2nd
50 50
COLOR
NIL
Painted Red
25 mm)
Paint
ENGINE 3-37
0.5 mm O.S.
Oil ring spacer