KYMCO ZING 150 - Valve Seat Grinding

6. CYLINDER HEAD/VALVES
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8
VALVE SEAT GRINDING
Remove any roughness or irregularities from
the seat using a 45° cutter.
Use a 37.5° cutter to remove the upper
existing valve seat material.
Use a 63.5° cutter to remove the lower
existing valve seat material.
Install a 45° finish cutter and cut the seat to
the proper width.
Standard Seat Width: 1.0mm
Roughness
Old Seat Width
Be careful not to grind too much.
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Old Seat Width