VALVES AND VALVE SPRINGS
5-20
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.
b. Install the valve into the cylinder head.
c. Press the valve through the valve guide and
onto the valve seat to make a clear impres-
sion.
d. Measure the valve seat width.
NOTE:
Where the valve seat and valve face contacted
one another, the blueing will have been re-
moved.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
4. Lap:
●
Valve face
●
Valve seat
NOTE:
After replacing the cylinder head or replacing the
valve and valve guide, the valve seat and valve
face should be lapped.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Apply a coarse lapping compound “a” to the
valve face.
CAUTION:
ECA13790
Do not let the lapping compound enter the
gap between the valve stem and the valve
guide.
b. Apply molybdenum disulfide oil onto the
valve stem.
c. Install the valve into the cylinder head.
d. Turn the valve until the valve face and valve
seat are evenly polished, then clean off all of
the lapping compound.
NOTE:
For the best lapping results, lightly tap the valve
seat while rotating the valve back and forth be-
tween your hands.
Valve seat width
0.90
–
1.10 mm (0.0354
–
0.0433 in)
Wear limit
1.6 mm (0.06 in)
a
b
Valve lapper
90890-04101
Valve lapping tool
YM-A8998
a
Summary of Contents for XJR1300 2007
Page 1: ...SERVICE MANUAL XJR1300 W 5WM 28197 E0 2007 ...
Page 2: ......
Page 8: ......
Page 47: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 24 ...
Page 48: ...LUBRICATION DIAGRAMS 2 25 EAS28860 LUBRICATION DIAGRAMS ...
Page 50: ...LUBRICATION DIAGRAMS 2 27 ...
Page 51: ...LUBRICATION DIAGRAMS 2 28 1 Drive axle 2 Push rod 3 Main axle 4 Camshaft 5 Crankshaft ...
Page 52: ...LUBRICATION DIAGRAMS 2 29 ...
Page 53: ...LUBRICATION DIAGRAMS 2 30 1 Nozzle 2 Bypass valve 3 Oil filter element 4 Relief valve ...
Page 54: ...CABLE ROUTING 2 31 EAS20430 CABLE ROUTING ...
Page 56: ...CABLE ROUTING 2 33 ...
Page 58: ...CABLE ROUTING 2 35 ...
Page 60: ...CABLE ROUTING 2 37 ...
Page 62: ...CABLE ROUTING 2 39 ...
Page 64: ...CABLE ROUTING 2 41 ...
Page 66: ...CABLE ROUTING 2 43 ...
Page 68: ...CABLE ROUTING 2 45 ...
Page 70: ...CABLE ROUTING 2 47 ...
Page 205: ...GENERATOR 5 32 b Measure the stator coil resistances 1 2 ...
Page 240: ...STARTER CLUTCH 5 67 1 3 2 New ...
Page 260: ...FUEL TANK 6 3 fuel hose end in the direction of the arrow 1 ...
Page 269: ...THROTTLE BODIES 6 12 ...
Page 270: ...AIR INDUCTION SYSTEM 6 13 EAS27040 AIR INDUCTION SYSTEM 1 2 3 4 4 5 4 4 3 2 1 1 2 4 3 ...
Page 274: ...AIR INDUCTION SYSTEM 6 17 ...
Page 277: ......
Page 278: ...IGNITION SYSTEM 7 1 EAS27090 IGNITION SYSTEM EAS27110 CIRCUIT DIAGRAM ...
Page 282: ...ELECTRIC STARTING SYSTEM 7 5 EAS27160 ELECTRIC STARTING SYSTEM EAS27170 CIRCUIT DIAGRAM ...
Page 288: ...CHARGING SYSTEM 7 11 EAS27200 CHARGING SYSTEM EAS27210 CIRCUIT DIAGRAM ...
Page 289: ...CHARGING SYSTEM 7 12 1 Generator 2 Main switch 4 Main fuse 7 Battery ...
Page 291: ...CHARGING SYSTEM 7 14 ...
Page 292: ...LIGHTING SYSTEM 7 15 EAS27240 LIGHTING SYSTEM EAS27250 CIRCUIT DIAGRAM ...
Page 295: ...LIGHTING SYSTEM 7 18 ...
Page 296: ...SIGNALING SYSTEM 7 19 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM ...
Page 302: ...FUEL INJECTION SYSTEM 7 25 EAS27330 FUEL INJECTION SYSTEM EAS27340 CIRCUIT DIAGRAM ...
Page 342: ...FUEL PUMP SYSTEM 7 65 EAS27580 FUEL PUMP SYSTEM EAS27590 CIRCUIT DIAGRAM ...
Page 345: ...FUEL PUMP SYSTEM 7 68 ...
Page 346: ...IMMOBILIZER SYSTEM 7 69 EAS27640 IMMOBILIZER SYSTEM EAS27650 CIRCUIT DIAGRAM ...
Page 355: ...IMMOBILIZER SYSTEM 7 78 ...
Page 361: ...ELECTRICAL COMPONENTS 7 84 a b Br R Br R ...
Page 382: ......
Page 383: ......
Page 384: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...