Removing The Valves And Valve Springs - Yamaha 2004 Rhino 660 YXR660FAS Service Manual

VALVES AND VALVE SPRINGS
REMOVING THE VALVES AND VALVE
SPRINGS
1. Check:
• valve sealing
Leakage at the valve seat → Check the
valve face, valve seat and valve seat width.
Refer to "CHECKING THE VALVES AND
VALVE SPRINGS".
M MMM
a. Pour a clean solvent 1 into the intake and
exhaust ports.
b. Check that the valve seals properly.
There should be no leakage at the valve
seat 2.
L LLL
2. Remove:
• valve cotters
NOTE:
Attach a valve spring compressor 1 and valve
spring compressor attachment 2 between the
valve spring retainer and the cylinder head to
remove the valve cotters.
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ENG
M MMM M M MMM M M MMM M M MMM M
L LLL L L LLL L L LLL L L LLL L
Valve spring compressor set
P/N. YM-04019
Valve spring compressor
P/N. 90890-04019
Valve spring compressor attach-
ment
P/N. YM-01253-1, 90890-01243
M MMM M MMM
L LLL L LLL