Yamaha SRX700D Service Manual page 131

CYLINDER HEAD AND CYLINDER
•
If out of specification, replace the piston and
piston rings as a set.
3rd step:
•
Calculate the piston-to-cylinder clearance with
the following formula:
Piston-to-cylinder clearance =
Cylinder bore (C) – Piston skirt diameter (P)
•
If out of specification, rebore or replace cylin-
der, and replace piston and piston rings as a
set.
9. Measure:
•
NOTE:
Eliminate the carbon deposits from the piston
ring grooves and rings before measuring the side
SDN5190
clearance.
5-12
ENG
Piston size (standard) (P):
68.944 ~ 68.947 mm
(2.7143 ~ 2.7144 in)
Piston-to-cylinder clearance:
0.065 ~ 0.070 mm
(0.0026 ~ 0.0028 in)
Limit 0.1 mm (0.004 in)
Side clearance (piston rings)
Use the feeler gauge 1.
Out of specification → Replace the piston
and/or rings.
Side clearance (top):
0.02 ~ 0.06 mm
(0.0008 ~ 0.0024 in)
Side clearance (2nd):
0.02 ~ 0.06 mm
(0.0008 ~ 0.0024 in)