2004-2005 Kawasaki STX-15F Jet Ski Factory Service Manual., Page 197Get this manual
6-26 ENGINE TOP END Valves
Valve Seat Inspection
tl) Remcokvte ehveavvaelvseeastiee ValrvacReA]obveatw.een the valve [B] he Cnd valve seat [C]ng sua
Measure the outside diameter [D] of the seating pattern
on the valve seatIf the outside diameter is too large or too small, repair the seat (see Valve Seat Repair)Valve Seating Surface Outside Diameter an d: xh st In le 27 .6 27 .8 (1 .0 87 in 32 .6 32 .8 (1 .2 83 in
Measure the seat width [E] of the portion where there is