Valve Assembly - Yamaha FZ-16 Service Manual

Free length (Admission)
39.40 mm
Limit
37.40 mm
Free length (Escape)
39.40 mm
Limit
37.40 mm
2.
Measure:
•
Compression force of the spring installed
Valve "a"
Out of specification Replace
valve spring.
Compression strength installed
Spring (Admission)
160-184
Compression strength installed
Spring (Escape)
160-184
Installed length
34.50 mm
Installed length
34.50 mm
b. Installed length
3.
Measure:
•
Tilt the valve spring "a"
Out of specification Replace
valve spring.
VALVES AND VALVE SPRINGS
(Admission)
(Escape)
Tilt Spring
compression (Admission)
2.5 ° / 1.7 mm
Tilt Spring
compression (Escape)
2.5 ° / 1.7 mm

VALVE ASSEMBLY

The following procedure applies to all
valves and related components.
1.
Remove burrs:
•
End of the valve stem
(With a stone oil)
2.
Lubricate:
•
Valve stem "1"
•
Stem seal valve "2"
(With the recommended lubricant)
With the recommended lubricant
Molybdenum disulfide oil
New
3. Install:
•
Lower spring seat valve
5-19
New
"1"