Cylinder Head Inspection - Honda XR80R Service Manual

CYLINDER HEAD/VAlVES
Marl< aff
PJ)flS Remove the following:
dlJring diSJIssemtJly
s..thcy canba
installed
jn
t~jr
OtiginallocalfoN,
Avoid damaging the
gasket
~urface
- Spri ng reta iner
- Oute r and in""r valve spri ng s
- Valve
- Stem se al
- Valve spring seal
INSPECTION
CVlINDER HEA D
Remove carbon d epOsits from the combustion
chambe r.
Chack t he spar1< plug hole and valve areas for cracks_
Choc k th e cylinder head for w arpag e w ith a strai ght
edge and feeler gauge.
SERVICE LIMIT; 0.10 mm (0. 004 inf
XR 100R
SHOWN,
SPR'NGSEAT
(AFTER :) '
XR BOR SHOWN:
SPRING
SEAT
SPRINGS \
COTTERS
EXHAUST VALVE
SPR INGS
"
;/
·e~
INTAKE VALVE!
;- e . . . .
STEM SEAL \
RETAINER STEM SEAL COTTERS
RETAINER