6-6 Valve Stem Replacement
Heat up cylinder head to 100~150
℃
with heated
plate or toaster.
Caution
Ÿ
Do not let torch heat cylinder head directly.
Otherwise, the cylinder head may be deformed
as heating it.
Ÿ
Wear on a pair of glove to protect your hands
when operating.
Hold the cylinder head, and then press out old valve
guide from combustion chamber side.
Tool: Valve guide driver: 5.0 mm
Caution
Ÿ
Check if new valve guide is deformation after
pressed it in.
Ÿ
When pressing in the new valve guide, cylinder
head still have to be kept in 100~150
℃
.
Adjust the valve guide driver and let valve guide height is in 13 mm.
Press in new valve guide from rocker arm side.
Tool: Valve guide driver: 5.0 mm
Wait for the cylinder head cooling down to room
temperature, and then correct the new valve guide
with reamer.
Caution
Ÿ
Using cutting oil when correcting valve guide
with a reamer.
Ÿ
Turn the reamer in same direction when it be
inserted or rotated.
Correct valve seat, and clean up all metal residues from cylinder head.
Tool: Valve guide reamer: 5.0 mm
Valve guide driver
5.0mm
Valve guide driver
5.0 mm
Valve guide reamer 5.0 mm
Summary of Contents for ET-250
Page 1: ...1 ET 250...
Page 51: ...Use 32 cutter to cut a quarter upper parts out...
Page 54: ......
Page 60: ...7 1 Mechanism Diagram 0 8 1 2kgf m 1 0 1 4kgf m...
Page 67: ...7 7 Cylinder Installation Install dowel pins and new gasket Dowel pins...
Page 96: ...10 1 Mechanism Diagram 5 0 6 0kgf m 1 0 1 4kgf m 0 8 1 2kgf m...
Page 140: ...REAR BRAKE...
Page 158: ......
Page 159: ...17 8 WIRING DIAGRAM...