SANYANG INDUSTRY CO. XS125-K Service Manual page 46

5.INSPECTION/ADJUSTMENT
VALVE SEAT GRINDING
NOTE:
Follow the instructions described in the cutter
instruction manual.
Remove any roughness from the seat by applying 4~5
kg pressure, turning the cutter left and right.
NOTE:
Add engine oil to the face when operating.
Using a 45 degree cutter,remove any roughness from
the seat.
5-10
CUTTER
ROUGHNESS
60°
32°
45°
4~5kg
CUTTER HOLDER
TURN RIGHT AND LEFT
45°
VALVE SEAT