ENGINE 3-29
FINAL SEAT CUT
• If the contact area
W
is too low or too narrow, use the 45° cut-
ter to raise and widen the contact area.
NOTE:
After cutting the 15
°
and 30
°
angles, it is possible that the valve
seat (45
°
) is too narrow. If so, re-cut the valve seat to the correct
width.
• After the desired seat position and width is achieved, use the
45° cutter very lightly to clean up any burrs caused by the pre-
vious cutting operations.
#
NOTE:
After servicing the valve seats, be sure to check the valve clear-
ance after the cylinder head has been reinstalled. (
!
2-6)
• Clean and assemble the head and valve components. Fill the
intake and exhaust ports with gasoline to check for leaks. If
any leaks occur, inspect the valve seat and face for burrs or
other things that could prevent the valve from sealing.
'
VALVE STEM END CONDITION
Inspect the valve stem end face for pitting and wear. If pitting or
wear is present, resurface the valve stem end. Make sure that
the length
A
is not less than 2.2 mm. If this length becomes less
than 2.2 mm, replace the valve.
&
Valve stem end length
Service Limit: 2.2 mm
Do not use lapping compound after the final cut is
made. The finished valve seat should have a velvety
smooth finish but not a highly polished or shiny fin-
ish. This will provide a soft surface for the final seat-
ing of the valve which will occur during the first few
seconds of engine operation.
45˚
Always use extreme caution when handling gasoline.
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Содержание UY125
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Страница 183: ...ELECTRICAL SYSTEM 6 7 8 Ignition coil 9 Starter relay 0 Starter motor http mototh com ...
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Страница 234: ...7 20 SERVICING INFORMATION CLUTCH TRANSMISSION DRIVE BELT INSTALLATION 1 1 1 1 1 Remove excess grease http mototh com ...
Страница 235: ...SERVICING INFORMATION 7 21 COOLING FAN INSTALLATION 33 N m 3 3 kgf m 10 N m 1 0 kgf m http mototh com ...
Страница 236: ...7 22 SERVICING INFORMATION FUEL TANK INSTALLATION Fuel tap Vacuum hose Fuel hose Clip http mototh com ...
Страница 241: ...SERVICING INFORMATION 7 27 REAR BRAKE CAM LEVER INSTALLATION 33 40 35 Match Match Match Set position http mototh com ...
Страница 243: ...SERVICING INFORMATION 7 29 SEAT HINGE INSTALLATION 96 Seat Assy E ring RH LH FWD http mototh com ...
Страница 244: ...7 30 SERVICING INFORMATION FRONT WHEEL UY125 5 J _ http mototh com ...
Страница 245: ...SERVICING INFORMATION 7 31 FRONT WHEEL UY125S Clearance 1 mm http mototh com ...
Страница 246: ...7 32 SERVICING INFORMATION REAR WHEEL http mototh com ...
Страница 258: ...Prepared by August 2005 Part No 99500 31310 01E Printed in Thailand 260 THAI SUZUKI MOTOR CO LTD http mototh com ...