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VALVES AND VALVE SPRINGS
5-21
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3. Eliminate:
• Carbon deposits
(from the valve face and valve seat)
4. Check:
• Valve face
Pitting/wear
→
Grind the valve face.
• Valve stem end
Mushroom shape or diameter larger than the
body of the valve stem
→
Replace the valve.
5. Measure:
• Valve margin thickness “a”
Out of specification
→
Replace the valve.
6. Measure:
• Valve stem runout
Out of specification
→
Replace the valve.
TIP
• When installing a new valve, always replace
the valve guide.
• If the valve is removed or replaced, always re-
place the oil seal.
EAS24300
CHECKING THE VALVE SEATS
The following procedure applies to all of the
valves and valve seats.
1. Eliminate:
• Carbon deposits
(from the valve face and valve seat)
2. Check:
• Valve seat
Pitting/wear
→
Replace the cylinder head.
3. Measure:
• Valve seat width “a”
Out of specification
→
Replace the cylinder
head.
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a. Apply Mechanic’s blueing dye (Dykem) “b”
onto the valve face.
Valve guide remover (ø4)
90890-04111
Valve guide remover (4.0 mm)
YM-04111
Valve guide installer (ø4)
90890-04112
Valve guide installer (4.0 mm)
YM-04112
Valve guide reamer (ø4)
90890-04113
Valve guide reamer (4.0 mm)
YM-04113
Valve margin thickness D (intake)
0.60–0.80 mm (0.0236–0.0315 in)
Valve margin thickness D (ex-
haust)
0.60–0.80 mm (0.0236–0.0315 in)
Valve stem runout
0.040 mm (0.0016 in)
Valve seat width C (intake)
0.90–1.10 mm (0.0354–0.0433 in)
Valve seat width C (exhaust)
0.90–1.10 mm (0.0354–0.0433 in)
Содержание 2009 XP500Y TMAX
Страница 1: ...2009 SERVICE MANUAL XP500Y LIT 11616 22 08 4B5 28197 10 ...
Страница 6: ......
Страница 8: ......
Страница 26: ...SPECIAL TOOLS 1 17 ...
Страница 47: ...TIGHTENING TORQUES 2 20 Cylinder head tightening sequence ...
Страница 56: ...LUBRICATION SYSTEM DIAGRAMS 2 29 1 2 3 4 4 ...
Страница 57: ...LUBRICATION SYSTEM DIAGRAMS 2 30 1 Secondary shaft 2 Drive axle 3 Clutch 4 Crankshaft ...
Страница 60: ...COOLING SYSTEM DIAGRAMS 2 33 1 2 3 4 5 6 7 8 9 10 11 12 ...
Страница 64: ...CABLE ROUTING 2 37 A B A C D E F G H I J K L 1 2 1 2 3 3 4 5 6 6 7 A A A A A A A A ...
Страница 72: ...CABLE ROUTING 2 45 A A A B B C C E E D D E A B C C B E A B C D E F G H I 1 1 1 1 3 3 3 3 3 2 2 4 ...
Страница 74: ...CABLE ROUTING 2 47 A A B A B A B C D E F G B G G H I J J K L M O 1 2 1 2 3 3 4 4 5 5 6 7 8 9 10 Q P N ...
Страница 78: ...CABLE ROUTING 2 51 ...
Страница 81: ......
Страница 115: ......
Страница 172: ...FRONT FORK 4 57 2 3 ...
Страница 186: ...SWINGARM AND TRANSMISSION CHAIN DRIVE 4 71 ...
Страница 259: ...CRANKCASE 5 70 M6 35 mm bolts 3 5 Check Crankshaft and transmission operation Rough movement Repair 1 2 2 1 3 3 2 1 ...
Страница 270: ...TRANSMISSION 5 81 ...
Страница 294: ...THROTTLE BODY 7 9 ...
Страница 297: ......
Страница 309: ...CHARGING SYSTEM 8 12 2 AC magneto 3 Rectifier regulator 14 Battery 15 Main fuse ...
Страница 311: ...CHARGING SYSTEM 8 14 ...
Страница 321: ...SIGNALING SYSTEM 8 24 ...
Страница 325: ...COOLING SYSTEM 8 28 ...
Страница 353: ...FUEL PUMP SYSTEM 8 56 ...
Страница 354: ...ELECTRICAL COMPONENTS 8 57 EAS27971 ELECTRICAL COMPONENTS 1 10 2 3 4 5 6 7 8 11 12 14 15 16 17 18 19 13 9 ...
Страница 356: ...ELECTRICAL COMPONENTS 8 59 2 1 3 4 5 6 10 8 9 11 7 ...
Страница 376: ...ELECTRICAL COMPONENTS 8 79 ...
Страница 383: ......
Страница 384: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...