2-3
MAINTENANCE SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
ENGINE
Item
Standard
Limit
Cylinder head:
Warp limit
----
0.05 mm (0.002
in)
Cylinder:
Bore size
77.00–77.01 mm (3.0315–3.0319 in)
----
Out of round limit
----
0.05 mm (0.002
in)
Camshaft:
Drive method
Chain drive (Left)
----
Camshaft cap inside diameter
22.000–22.021 mm (0.8661–0.8670 in)
----
Camshaft outside diameter
21.959–21.972 mm (0.8645–0.8650 in)
----
Shaft-to-cap clearance
0.028–0.062 mm (0.0011–0.0024 in)
0.08 mm (0.003
in)
Cam dimensions
Intake "A"
30.330–30.430 mm (1.1941–1.1980 in)
30.230 mm
(1.1902 in)
Intake "B"
22.45–22.55 mm (0.8839–0.8878 in)
22.35 mm
(0.8799 in)
Exhaust "A"
30.399–30.499 mm (1.1968–1.2007 in)
30.299 mm
(1.1929 in)
Exhaust "B"
22.45–22.55 mm (0.8839–0.8878 in)
22.35 mm
(0.8799 in)
Camshaft runout limit
----
0.03 mm
(0.0012 in)
Timing chain:
Timing chain type/No. of links
92RH2010-114M/114
----
Timing chain adjustment method
Automatic
----
Summary of Contents for yz250f A 2011
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