Suzuki LT-A50, Руководство по обслуживанию

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3-14 ENGINE
PISTON
PISTON DIAMETER
Measure the piston diameter with a micrometer at 23 mm (0.9 in)
from the skirt end.
If the piston diameter is less than the service limit, replace the
piston.
'
09900-20202: Micrometer (25 – 50 mm)
%
Piston diameter
Service Limit: 40.880 mm (1.6094 in)
PISTON-CYLINDER CLEARANCE
Subtract the piston diameter from the cylinder bore. If the piston-
to-cylinder clearance exceeds the service limit, rebore the cylin-
der and use an oversize piston or replace both the cylinder and
the piston.
Unit: mm (in)
STD Service Limit
Cylinder bore
41.000 – 41.015 41.065
(1.6142 – 1.6148) (1.6167)
Piston diam.
40.930 – 40.945 40.880
(1.6114 – 1.620) (1.6094)
Cylinder to piston
0.065 – 0.075 0.120
(0.0026 – 0.0030) (0.0047)
CARBON REMOVAL
Remove the carbon from the crown of the piston and piston ring
grooves. After cleaning the piston ring grooves, install the piston
rings and rotate them in their respective grooves to be sure that
they move smoothly.
Carbon in the piston ring groove can cause the piston ring to get
stuck, reducing engine power output. Replace the scuffed piston.
Shallow grooves or minor scuff can be removed by using emery
paper (about #400).
Smothening the sliding
surface with emery paper.
23 mm
(0.9 in)