Yamaha 2008 YZ250F Fahrer- Und Wartungshandbuch Seite 600

Elemento
Valvola, sede valvola, guidavalvola:
Gioco valvole (a freddo)
INT
EST
Dimensioni valvola:
Diametro testata "A" (INT)
Diametro testata "A" (EST)
Larghezza faccia "B" (INT)
Larghezza faccia "B" (EST)
Larghezza sella "C" (INT)
Larghezza sella "C" (EST)
Spessore margine "D" (INT)
Spessore margine "D" (EST)
Diametro esterno dello stelo (INT)
Diametro esterno dello stelo (EST)
Diametro interno della guida (INT)
Diametro interno della guida (EST)
Gioco tra stelo e guida (INT)
Gioco tra stelo e guida (EST)
SPECIFICHE DI MANUTENZIONE
Standard
0.10–0.15 mm (0.0039–0.0059 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
Limite
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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)