Specifications - Yamaha WR250F 2008 Owner's And Service Manual

"C" seat width (IN)
"C" seat width (EX)
"D" margin thickness (IN)
"D" margin thickness (EX)
Stem outside diameter (IN)
Stem outside diameter (EX)
Guide inside diameter (IN)
Guide inside diameter (EX)
Stem-to-guide clearance (IN)
Stem-to-guide clearance (EX)
Stem runout limit
Valve seat width (IN)
Valve seat width (EX)
Valve spring:
Free length (IN)
Free length (EX)
Set length (valve closed) (IN)
Set length (valve closed) (EX)
Compressed force (installed) (IN)
Item
MAINTENANCE SPECIFICATIONS
Standard
0.9–1.1 mm (0.0354–0.0433 in)
0.9–1.1 mm (0.0354–0.0433 in)
0.8 mm (0.0315 in)
0.7 mm (0.0276 in)
3.975–3.990 mm (0.1565–0.1571 in)
4.460–4.475 mm (0.1756–0.1762 in)
4.000–4.012 mm (0.1575–0.1580 in)
4.500–4.512 mm (0.1772–0.1776 in)
0.010–0.037 mm (0.0004–0.0015 in)
0.025–0.052 mm (0.0010–0.0020 in)
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0.9–1.1 mm (0.0354–0.0433 in)
0.9–1.1 mm (0.0354–0.0433 in)
36.58 mm (1.44 in)
37.54 mm (1.48 in)
29.13 mm (1.15 in)
29.30 mm (1.15 in)
103–118 N at 29.13 mm (10.50–12.09 kg
at 29.13 mm, 23.15–26.66 lb at 1.15 in)
2-5
Limit
1.6 mm (0.0630
in)
1.6 mm (0.0630
in)
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3.945 mm
(0.1553 in)
4.430 mm
(0.1744 in)
4.050 mm
(0.1594 in)
4.550 mm
(0.1791 in)
0.08 mm (0.003
in)
0.10 mm (0.004
in)
0.01 mm
(0.0004 in)
1.6 mm (0.0630
in)
1.6 mm (0.0630
in)
35.58 mm (1.40
in)
36.54 mm (1.44
in)
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