Yamaha 2012 Grizzly 300 Service Manual page 31

I e t m
Valve, valve seat, valve guide
Valve clearance (cold)
Valve dimensions
Head Diameter
"A" head diameter
" " B a f c e w d i h t
"C" seat width
"D" margin thickness
Stem outside diameter
Guide inside diameter
Stem-to-guide clearance
Valve stem runout
Valve seat width
ENGINE SPECIFICATIONS
IN 0.08 ~ 0.12 mm (0.0031 ~ 0.0047 in)
EX 0.13 ~ 0.17 mm (0.0051 ~ 0.0067 in)
Face Width
IN 25.40 ~ 25.60 mm (1.0000 ~ 1.0079 in)
EX 21.90 ~ 22.10 mm (0.8622 ~ 0.8701 in)
N I 1.20 mm (0.0472 in)
E X 1.20 mm (0.0472 in)
IN 0.50 ~ 0.90 mm (0.0197 ~ 0.0354 in)
EX 0.50 ~ 0.90 mm (0.0197 ~ 0.0354 in)
IN 0.50 ~ 0.90 mm (0.0197 ~ 0.0354 in)
EX 0.80 ~ 1.20 mm (0.0315 ~ 0.0472 in)
IN 4.975 ~ 4.990 mm (0.1959 ~ 0.1965 in)
EX 4.950 ~ 4.975 mm (0.1949 ~ 0.1959 in)
IN 5.000 ~ 5.012 mm (0.1969 ~ 0.1973 in)
EX 5.000 ~ 5.012 mm (0.1969 ~ 0.1973 in)
IN 0.010 ~ 0.037 mm (0.0004 ~ 0.0015 in)
EX 0.025 ~ 0.062 mm (0.0010 ~ 0.0024 in)
----
IN 3.30 ~ 3.50 mm (0.1299 ~ 0.1378 in)
EX 3.30 ~ 3.50 mm (0.1299 ~ 0.1378 in)
2-5
SPEC
S a t n d a d r
Seat Width Margin Thickness
i L m t i
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----
----
----
----
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1.2 mm
(0.05 in)
1.2 mm
(0.05 in)
----
----
4.900 mm
(0.193 in)
4.900 mm
(0.193 in)
5.030 mm
(0.198 in)
5.030 mm
(0.198 in)
0.080 mm
(0.003 in)
0.100 mm
(0.004 in)
0 0 . 1 m m
(0.0004 in)
4.0 mm
(0.16 in)
4.0 mm
(0.16 in)