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6. CYLINDER HEAD/VALVES STRYKER 125/150
Inspect the valve seat width.
Service Limit: 1.8mm replace if over
If the seat is too wide or too narrow or has
low spots, the seat must be ground using a
valve seat cutter.
Valve Seat Width
VALVE SEAT GRINDING
Remove any roughness or irregularities
from the seat using a 45° cutter. Roughness
Be careful not to grind too much.
Use a 37.5° cutter to remove the upper
existing valve seat material.
Old Seat Width
6-12