VALVES AND VALVE SPRINGS
5-23
j. Measure the valve seat width again. If the
valve seat width is out of specification, reface
and lap the valve seat.
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EAS24310
CHECKING THE VALVE SPRINGS
The following procedure applies to all of the
valve springs.
1. Measure:
• Valve spring free length “a”
Out of specification
→
Replace the valve
spring.
2. Measure:
• Compressed valve spring force “a”
Out of specification
→
Replace the valve
spring.
3. Measure:
• Valve spring tilt “a”
Out of specification
→
Replace the valve
spring.
EAS24320
CHECKING THE VALVE LIFTERS
The following procedure applies to all of the
valve lifters.
1. Check:
• Valve lifter
Damage/scratches
→
Replace the valve lift-
ers and cylinder head.
EAS24340
INSTALLING THE VALVES
The following procedure applies to all of the
valves and related components.
Free length (intake)
35.59 mm (1.40 in)
Limit
33.81 mm (1.33 in)
Free length (exhaust)
35.59 mm (1.40 in)
Limit
33.81 mm (1.33 in)
Installed compression spring
force (intake)
91.2–104.9 N (20.50–23.59 lbf)
(9.3–10.7 kgf)
Installed compression spring
force (exhaust)
91.2–104.9 N (20.50–23.59 lbf)
(9.3–10.7 kgf)
Installed length (intake)
30.39 mm (1.20 in)
Installed length (exhaust)
30.39 mm (1.20 in)
b. Installed length
Spring tilt (intake)
2.5°/1.6 mm
Spring tilt (exhaust)
2.5°/1.6 mm
Summary of Contents for 2009 XP500Y TMAX
Page 1: ...2009 SERVICE MANUAL XP500Y LIT 11616 22 08 4B5 28197 10 ...
Page 6: ......
Page 8: ......
Page 26: ...SPECIAL TOOLS 1 17 ...
Page 47: ...TIGHTENING TORQUES 2 20 Cylinder head tightening sequence ...
Page 56: ...LUBRICATION SYSTEM DIAGRAMS 2 29 1 2 3 4 4 ...
Page 57: ...LUBRICATION SYSTEM DIAGRAMS 2 30 1 Secondary shaft 2 Drive axle 3 Clutch 4 Crankshaft ...
Page 60: ...COOLING SYSTEM DIAGRAMS 2 33 1 2 3 4 5 6 7 8 9 10 11 12 ...
Page 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 ...
Page 78: ...CABLE ROUTING 2 51 ...
Page 81: ......
Page 115: ......
Page 172: ...FRONT FORK 4 57 2 3 ...
Page 186: ...SWINGARM AND TRANSMISSION CHAIN DRIVE 4 71 ...
Page 270: ...TRANSMISSION 5 81 ...
Page 294: ...THROTTLE BODY 7 9 ...
Page 297: ......
Page 309: ...CHARGING SYSTEM 8 12 2 AC magneto 3 Rectifier regulator 14 Battery 15 Main fuse ...
Page 311: ...CHARGING SYSTEM 8 14 ...
Page 321: ...SIGNALING SYSTEM 8 24 ...
Page 325: ...COOLING SYSTEM 8 28 ...
Page 353: ...FUEL PUMP SYSTEM 8 56 ...
Page 356: ...ELECTRICAL COMPONENTS 8 59 2 1 3 4 5 6 10 8 9 11 7 ...
Page 376: ...ELECTRICAL COMPONENTS 8 79 ...
Page 383: ......
Page 384: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...