1992-1998 Polaris Personal Watercraft Service Manual PN 9912201, Page 332Get this manual

1992-1998 Polaris Personal Watercraft Service Manual PN 9912201, Page 332

ENGINECOOLING Cylinder Honing Honing Procedure, Cont2Place hone in cylinder and tighten stone adjusting knob until stone
bolts in the exhaust mounting holes and clamping in soft jaw viseThe corners, top and bottom edges of ports should receive
standard chamfer (.3 -.6mm) with the widest portion at the center of the port windowThe sides of the ports require only de-burring
(.05.3mm)Refer to illustration belowExhaust Port Chamfering 1050cc Engines special chamfer must be applied to the bottom
edge of the exhaust ports on 10S0cc engines (see illustration below)Apply layout fluid or Dykem to the area around the bottom
edge of the exhaust portUsing dial caliper, measure 54mm (2.126") from the bottom of the cylinder sleeve, in line with the
center of the exhaust portScribe line parallel with the bottom of the exhaust portHolding the hand grinder, file, or knife
at 15-20 angle to the cylinder bore, relieve the bottom edge of the port as shown in the illustration belowCAUTION: To achieve
the required 15-20 chamfer angle the tool must be held almost parallel to the cylinder bore (see III2)The chamfer should