Yamaha BEARTRACKER YFM250XC, Service Manual

Page: 30 / 398

MAINTENANCE SPECIFICATIONS
SPEC
2 - 6
Guide inside diameter IN 6.000~ 6.012mm
(0.236 ~ 0.237 in)
----
EX 6.000~ 6.012mm
(0.236 ~ 0.237 in)
----
Stem-to-guide clearance IN 0.010 ~ 0.037 mm
(0.0004 ~ 0.0015 in)
0.08 mm
(0.0031 in)
EX 0.025 ~ 0.052 mm
(0.001 ~ 0.002 in)
0.10 mm
(0.0039 in)
Stem runout limit ---- 0.03 mm
(0.0012 in)
Valve seat width IN 0.9 ~ 1.1 mm (0.035 ~ 0.043 in) ----
EX 0.9 ~ 1.1 mm (0.035 ~ 0.043 in) ----
Valve spring:
Inner spring:
Free length IN 35.5 mm (1.4 in) ----
EX 35.5 mm (1.4 in) ----
Set length (valve closed) IN 30.5 mm (1.2 in) ----
EX 30.5 mm (1.2 in) ----
Compressed pressure
(installed) IN 82.4 ~ 100.0 N
(8.4 ~ 10.2 kg, 18.5 ~ 22.5 lb)
----
EX 82.4 ~ 100.0 N
(8.4 ~ 10.2 kg, 18.5 ~ 22.5 lb)
----
Tilt limit IN 2.5˚/ 1.6 mm
(2.5˚/0.06 in)
EX 2.5˚/ 1.6 mm
(2.5˚/0.06 in)
Direction of winding
(top view) IN Counterclockwise ----
EX Counterclockwise ----
Outer spring:
Free length IN 37.2 mm (1.46 in) ----
EX 37.2 mm (1.46 in) ----
Set length (valve closed) IN 32.0 mm (1.26 in) ----
EX 32.0 mm (1.26 in) ----
Item Standard Limit
*
2