4 - 25
ENG
CAMSHAFT, ROCKER ARMS AND VALVES
e. Apply a fine lapping compound to the valve
face and repeat the above steps.
NOTE:
After every lapping operation be sure to clean
off all of the compound from the valve face and
valve seat.
f. Apply Mechanic’s blueing dye (Dykem) to
the valve face.
g. Install the valve into the cylinder head.
h. Press the valve through the valve guide and
onto the valve seat to make a clear pattern.
i. Measure the valve seat width again. If the
valve seat width is out of specification,
reface and relap the valve seat.
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10.Measure:
• valve spring free length
a
Out of specification
→
Replace.
11.Measure:
• compressed spring force
a
Out of specification
→
Replace.
b
Installed length
Free length (valve spring)
Inner
39.90 mm (1.57 in)
<Limit>: 37.9 mm (1.49 in)
Outer
43.27 mm (1.70 in)
<Limit>: 41.1 mm (1.62 in)
Compressed spring force
Inner
104.9 ~ 120.6 N at 33.6 mm
(10.70 ~ 12.30 kg,
23.58 ~ 27.11 lb at 1.32 in)
Outer
235.4 ~ 251.1 N at 36.6 mm
(24.00 ~ 25.60 kg,
52.92 ~ 56.45 lb at 1.44 in)
Summary of Contents for Rhino 450 YXR45FAV
Page 1: ...LIT 11616 19 43 2P5 F8197 10 YXR45FAV SERVICE MANUAL ...
Page 6: ......
Page 57: ...2 31 SPEC OIL FLOW DIAGRAMS 1 Oil delivery pipe 2 Oil pump 3 Oil strainer A A A A 1 2 3 ...
Page 347: ...9 4 ELEC CHECKING THE SWITCHES ...
Page 375: ...9 32 ELEC LIGHTING SYSTEM ...
Page 411: ......
Page 412: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...