5-24
VALVES AND VALVE SPRINGS
ENG
NOTE:
CAUTION:
NOTE:
4. Lap:
valve face
valve seat
After replacing the cylinder head or replacing
the valve and valve guide, the valve seat and
valve face should be lapped.
a. Apply a coarse lapping compound to the
valve face.
Do not let the lapping compound enter the
gap between the valve stem and the valve
guide.
b. Apply molybdenum disulfide oil onto the
valve stem.
c. Install the valve into the cylinder head.
d. Turn the valve until the valve face and valve
seat are evenly polished, then clean off all of
the lapping compound.
For the best lapping results, lightly tap the valve
seat while rotating the valve back and forth be-
tween your hand.
e. Apply a fine lapping compound to the valve
face and repeat the above steps.
f. After every lapping procedure, be sure to
clean off all of the lapping compound from
the valve face and valve seat.
g. Apply Mechanic’s blueing dye (Dykem) onto
the valve face.
h. Install the valve into the cylinder head.
i. Press the valve through the valve guide and
onto the valve seat to make a clear impres-
sion.
j. Measure the valve seat width again. If the
valve seat width is out of specification, reface
and lap the valve seat.
Содержание XVS250 2001
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Страница 22: ...SPEC ...
Страница 39: ...2 17 MAINTENANCE SPECIFICATIONS SPEC Cylinder head tightening sequence Crankcase tightening sequence ...
Страница 45: ...2 23 ENGINE OIL FLOW DIAGRAMS SPEC EB205000 ENGINE OIL FLOW DIAGRAMS ...
Страница 46: ...2 24 ENGINE OIL FLOW DIAGRAMS SPEC ...
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Страница 252: ...CARB ...
Страница 267: ...6 15 A From air cleaner B To reed valve AIR INDUCTION SYSTEM CARB EAS00508 ...
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Страница 277: ...ELEC ...
Страница 300: ...7 23 1 A C magneto 2 Rectifier regulator 4 Fuse main 6 Battery CHARGING SYSTEM ELEC CHARGING SYSTEM CIRCUIT DIAGRAM ...
Страница 308: ...7 31 SIGNALING SYSTEM ELEC SIGNALING SYSTEM CIRCUIT DIAGRAM ...
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Страница 324: ...TRBL SHTG ...
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