VALVES AND VALVE SPRINGS
5-36
EAS24280
REMOVING THE VALVES
The following procedure applies to all of the
valves and related components.
TIP
Before removing the internal parts of the cylinder
head (e.g., valves, valve springs, and valve
seats), make sure the valves properly seal.
1. Check:
• Valve sealing
Leakage at the valve seat
→
Check the valve
face, valve seat, and valve seat width.
Refer to “CHECKING THE VALVE SEATS”
on page 5-38.
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a. Pour a clean solvent “a” into the intake and
exhaust ports.
b. Check that the valves properly seal.
TIP
There should be no leakage at the valve seat “1”.
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2. Remove:
• Valve cotters
TIP
Remove the valve cotters by compressing the
valve spring with the valve spring compressor
“1” and the valve spring compressor attachment
“2”.
3. Remove:
• Upper spring seat “1”
• Valve spring “2”
• Valve “3”
• Valve stem seal “4”
• Lower spring seat “5”
TIP
Identify the position of each part very carefully so
that it can be reinstalled in its original place.
EAS24290
CHECKING THE VALVES AND VALVE
GUIDES
The following procedure applies to all of the
valves and valve guides.
1. Measure:
• Valve-stem-to-valve-guide clearance
Out of specification
→
Replace the valve
guide.
Valve spring compressor
90890-04019
YM-04019
Valve spring compressor attach-
ment
90890-01243
Valve spring compressor adapt-
er (26 mm)
YM-01253-1
• Valve-stem-to-valve-guide clearance =
Valve guide inside diameter “a” -
Valve stem diameter “b”
Summary of Contents for Star XVS13AA(C) 2011
Page 1: ...2011 SERVICE MANUAL XVS13AA C XVS13CTA C XVS13CA C LIT 11616 24 48 3D8 28197 13 ...
Page 6: ......
Page 8: ......
Page 59: ...TIGHTENING TORQUES 2 32 2 1 ...
Page 63: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 36 ...
Page 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 EAS20410 LUBRICATION DIAGRAMS A A 1 2 2 3 A A ...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 41 1 2 ...
Page 69: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 42 1 Camshaft 2 Crankshaft ...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 43 1 2 ...
Page 71: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 44 1 Oil delivery pipe 1 2 Timing chain tensioner ...
Page 72: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 45 1 2 3 4 5 6 ...
Page 74: ...COOLING SYSTEM DIAGRAMS 2 47 EAS20420 COOLING SYSTEM DIAGRAMS A A A A 2 1 4 3 5 6 ...
Page 76: ...COOLING SYSTEM DIAGRAMS 2 49 A B B A 4 3 3 1 2 2 A A B B ...
Page 100: ...CABLE ROUTING for XVS13AA C XVS13CTA C 2 73 A D B C 1 2 3 4 5 6 7 8 9 A B 10 11 12 13 14 A B ...
Page 122: ...CABLE ROUTING for XVS13CA C 2 95 C B C B A B A A C B E D 5 6 1 2 3 4 1 2 3 7 5 6 C C ...
Page 126: ...CABLE ROUTING for XVS13CA C 2 99 E A B C D C C A B A B C C 1 1 5 3 2 4 ...
Page 128: ...CABLE ROUTING for XVS13CA C 2 101 A H G B C D E F 2 J I 1 5 2 3 4 A A 7 6 ...
Page 134: ...CABLE ROUTING for XVS13CA C 2 107 ...
Page 137: ......
Page 175: ......
Page 374: ...TRANSMISSION 5 95 ...
Page 388: ...WATER PUMP 6 13 ...
Page 407: ......
Page 415: ...IGNITION SYSTEM 8 8 ...
Page 425: ...CHARGING SYSTEM 8 18 1 AC magneto 2 Rectifier regulator 3 Main fuse 6 Battery ...
Page 427: ...CHARGING SYSTEM 8 20 ...
Page 445: ...SIGNALING SYSTEM 8 38 ...
Page 489: ...FUEL INJECTION SYSTEM 8 82 ...
Page 496: ...ELECTRICAL COMPONENTS 8 89 EAS27970 ELECTRICAL COMPONENTS 1 5 4 6 7 9 8 10 11 12 13 15 2 3 14 ...
Page 498: ...ELECTRICAL COMPONENTS 8 91 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ...
Page 530: ......
Page 531: ......
Page 532: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...