VMX12 Service Manual - V-Max Outlaw

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INSPECTION AND REPAIR
6. M easure:
seat width
O ut of specification/R em aining pitting/
Variation of valve seat width Cut valve
further.
Rem ove just enough m aterial to achieve satisfactory
seat.
1.0 0.1 m m . .
0.039 0.004 in
Valve seat recutting steps are necessary if:
*V alve seat is uniform around perimeter of
valve face but too w ide or not centered on
valve face.
To center the seat or
to reduce its width
face indicates that valve seat is
centered on valve face but is too w ide (see
“a” diagram ).
seat is in the m iddle of the valve face
but too narrow (see “b” diagram ).
ve seat IS too narrow and right up near
valve m argin (see “c” diagram ).