Suzuki RGV250T 1996 - Cylinder Bore; Piston; Decarbon; Piston Diameter

3-31 ENGINE
CYLINDER BORE
Inspect the cylinder wall for nicks, scratches or other damage.
PISTON
DECARBON
De-carbon the crown of the piston and piston ring grooves.
After cleaning the grooves, fit the rings and rotate them in
their respective grooves to be sure that they move smoothly.
Carbon in groove is liable to cause the piston ring to get stuck
in the groove, and this condition will lead to reduced engine
power output.
A piston whose sliding surface is badly grooved or scuffed due
to overheating must be replaced.
• Shallow grooves or minor scuff can be removed by grinding
with emery paper of about # 400.
PISTON DIAMETER
Using a micrometer, measure the piston outside diameter at
the place 19 mm (0.7480 in) from the skirt end as shown in
the illustration.
If the measurement is less than the limit, replace the piston
with a new one.
09900-20203: Micrometer (50 - 75 mm)
Service Limit: 55.815 mm (2.1974 in)
-r
19 mm (0.74 in)
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