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Using a 55 degree cutter, remove the bottom
of the
old seat.
Using a 45 degree cutter, cut the seat to the proper
width.
If the contact area is too high on the valve, the seat
must be lowered using a 37 degree flat cutter.
Refinish the seat to specifications, using a 45 degree
finish cutter.
If the contact area is too low on the valve, the seat must
be raised using a 55 degree inner cutter.
Refinish the seat to specifications, using a 45 degree
finish cutter.
9-10
CYLINDER HEAD / VALVES
Summary of Contents for BESBI SC125 -
Page 1: ......
Page 36: ...MEMO...
Page 56: ...MEMO...
Page 60: ...7 0 LH CRANKCASECOVER KICKSTARTER CONTINUOUSLYVARIABLE TRANSMISSION...
Page 77: ...MEMO...
Page 78: ...8 0 A C GENERATOR STARTER CLUTCH...
Page 87: ...MEMO...
Page 88: ...9 0 CYLINDER HEAD VALVES...
Page 104: ...10 0 CYLINDER PISTON...
Page 111: ...MEMO...
Page 112: ...11 0 TRANSMISSION CRANKSHAFT CRANK CASE...
Page 123: ...MEMO...
Page 124: ...MEMO...
Page 136: ...MEMO...
Page 144: ...MEMO...
Page 164: ...MEMO...
Page 178: ...MEMO...
Page 184: ...MEMO...
Page 185: ...20 WIRING DIAGRAM G Gr B G O Lb Lb I GNI TI ON SWI TCH G O COMBI MERER ASS Y...
Page 186: ...I GNI TI ON SWI T CH FUEL UNI T ENGI NE STOP SWI T CH PASS...
Page 187: ...SERVICEMANUAL 2007 09 PRINTED 2007 09 PUBLICATION...
Page 188: ......