Download Print this page

YAMAHA YZ250F(D) Owner's Service Manual Page 30

Hide thumbs

Advertisement

Valve, valve seat, valve guide:
Valve clearance (cold)
IN
EX
Valve dimensions:
"A" head diameter (IN)
"A" head diameter (EX)
"B" face width (IN)
"B" face width (EX)
"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)
Item
MAINTENANCE SPECIFICATIONS
Standard
0.12–0.17 mm (0.0047–0.0067 in)
0.17–0.22 mm (0.0067–0.0087 in)
22.9–23.1 mm (0.9016–0.9094 in)
24.4–24.6 mm (0.9606–0.9685 in)
2.26 mm (0.089 in)
2.26 mm (0.089 in)
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)
2-4
Limit
----
----
----
----
----
----
1.6 mm (0.0630
in)
1.6 mm (0.0630
in)
----
----
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)

Advertisement

Comments to this Manuals

Symbols: 0
Latest comments:
  • rodrigo Dec 03, 2017 02:34:
    MUY INTERESANT​E EL MANUAL PORQUE AYUDA PARA TENER A PUNTO UN MOTOR BIEN ARMADO TAL COMO INDICA EL MANUAL.