CYLINDER HEADS
5-25
EAS24150
REMOVING THE CYLINDER HEADS
1. Remove:
• Cylinder head bolts
• Cylinder head nuts
NOTE:
• Loosen the nuts and bolts in the proper se-
quence as shown.
• Loosen each nut and bolt 1/2 of a turn at a
time. After all of the bolts and nuts are fully
loosened, remove them.
EAS24170
CHECKING THE CYLINDER HEADS
The following procedure applies to all of the cyl-
inder heads.
1. Eliminate:
• Combustion chamber carbon deposits
(with a rounded scraper)
NOTE:
Do not use a sharp instrument to avoid damag-
ing or scratching:
• Spark plug bore threads
• Valve seats
2. Check:
• Cylinder heads
Damage/scratches
→
Replace.
3. Measure:
• Cylinder head warpage
Out of specification
→
Resurface the cylinder
head.
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a. Place a straightedge “1” and a thickness
gauge “2” across the cylinder head.
b. Measure the warpage.
c. If the limit is exceeded, resurface the cylinder
head as follows.
d. Place 400–600 grit wet sandpaper on a sur-
face plate and resurface the cylinder head
using a figure-eight sanding pattern.
NOTE:
To ensure an even surface, rotate the cylinder
head several times.
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EAS24230
INSTALLING THE CYLINDER HEADS
1. Tighten:
• Cylinder head nuts
• Cylinder head bolts
A. Front cylinder head
B. Rear cylinder head
4
5
3
1
2
6
A
1
2
6
4
5
3
B
Warpage limit
0.03 mm (0.0012 in)
1
2
Summary of Contents for XVS13AW
Page 2: ...SERVICE MANUAL XVS13AW C XVS13CTW C LIT 11616 20 42 3D8 28197 10 ...
Page 7: ......
Page 9: ......
Page 25: ...SPECIAL TOOLS 1 15 ...
Page 52: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 26 ...
Page 55: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 EAS20410 LUBRICATION DIAGRAMS A A 1 2 2 3 A A ...
Page 57: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31 1 2 3 ...
Page 58: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 32 1 Camshaft 2 Oil nozzle 3 Crankshaft ...
Page 59: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 1 2 ...
Page 60: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 34 1 Oil delivery pipe 1 2 Timing chain tensioner ...
Page 61: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 1 2 3 4 5 6 ...
Page 63: ...COOLING SYSTEM DIAGRAMS 2 37 EAS20420 COOLING SYSTEM DIAGRAMS A A A A 2 1 4 3 5 6 ...
Page 65: ...COOLING SYSTEM DIAGRAMS 2 39 A B B A 4 3 3 1 2 2 A A B B ...
Page 83: ...CABLE ROUTING 2 57 3D8 3D8 A B B A A B C D E 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ...
Page 85: ...CABLE ROUTING 2 59 ...
Page 89: ...CABLE ROUTING 2 63 ...
Page 92: ......
Page 125: ...ELECTRICAL SYSTEM 3 33 ...
Page 128: ......
Page 203: ...BELT DRIVE 4 75 ...
Page 305: ...WATER PUMP 6 11 ...
Page 319: ...THROTTLE BODIES 7 13 ...
Page 322: ......
Page 328: ...IGNITION SYSTEM 8 6 ...
Page 336: ...CHARGING SYSTEM 8 14 1 AC magneto 2 Rectifier regulator 3 Main fuse 6 Battery ...
Page 338: ...CHARGING SYSTEM 8 16 ...
Page 352: ...COOLING SYSTEM 8 30 ...
Page 389: ...ELECTRICAL COMPONENTS 8 67 EAS27970 ELECTRICAL COMPONENTS 1 4 5 6 7 8 9 10 11 12 13 2 3 ...
Page 391: ...ELECTRICAL COMPONENTS 8 69 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ...
Page 413: ...ELECTRICAL COMPONENTS 8 91 ...
Page 421: ......
Page 422: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...