Yamaha SX500D Supplementary Service Manual page 57

CYLINDER HEAD AND CYLINDER
S If out if specification, replace piston and pis-
3rd step:
S Calculate the piston-to-cylinder clearance
Piston-to-cylinder clearance =
S If out of specification, rebore or replace cylin-
2. Measure:
S Side clearance (piston rings)
NOTE:
Eliminate the carbon deposits from the piston
ring grooves and rings before measuring the
side clearance.
–53–
ton rings as a set.
with the following formula:
Cylinder bore "C" –
Piston skirt diameter "P"
der, and replace piston and piston rings as a
set.
Piston-to-cylinder clearance:
600: 0.065 X 0.070 mm
(0.0026 X 0.0028 in)
Limit 0.1 mm (0.004 in)
700: 0.070 X 0.075 mm
(0.0028 X 0.0030 in)
Limit 0.1 mm (0.004 in)
Out of specification ! Replace piston
and/or rings.
Use a feeler gauge 1 .
Side clearance (600, 700)
Top: 0.02 X 0.06 mm
(0.0008 X 0.0024 in)
2nd: 0.02 X 0.06 mm
(0.0008 X 0.0024 in)
ENG