Cam Chin Guide; Cylinder And Piston - Yamaha XT 600 AC Service Manual

INSPECTION AND REPAIR
1
ENG
1' - 1
CAM CHAIN GUIDE
1. Inspect:
-Exhaust side chain guide
CD
-Intake side chain guide
®
Wear / Damage-+ Replace.
CYLINDER AND PISTON
1. Inspect:
-Cylinder and piston walls
Vertical scratches-+ Rebore or replace
cylinder and piston.
2. Measure:
- Plston-to-cylinder clearance
***********************
Measurement steps:
I
First steps
I
.Measure the cylinder bore "C" with a cylinder
bore gauge.
304-011
CD
50 mm (1.97 in) from the cylinder top
~------------------------~
4-30
NOTE: ________________________ _
Measure the cylinder bore "C" in parallel to and
at right angles to the crankshaft.
Then, find the average of the measurements.
Standard
Cylinder 94.97~95.02 mm
bore"C": (3.739~3.741 in)
C=X+Y
2
Wesr limit
95.1 mm
(3.744 in)
• If out of the specification, rebore or replace
the cylinder, and the piston and piston rings
as a set.