Maintenance Specifications - Yamaha WR250FR Owner's Service Manual

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MAINTENANCE SPECIFICATIONS

ENGINE
Item
Cylinder head:
Warp limit
Cylinder:
Bore size
Out of round limit
Camshaft:
Drive method
Camshaft cap inside diameter
Camshaft outside diameter
Shaft-to-cap clearance
Cam dimensions
Intake
Exhaust
Camshaft runout limit
MAINTENANCE SPECIFICATIONS
----
77.00 ~ 77.01 mm
(3.0315 ~ 3.0319 in)
----
Chain drive (Left)
22.000 ~ 22.021 mm
(0.8661 ~ 0.8670 in)
21.967 ~ 21.980 mm
(0.8648 ~ 0.8654 in)
0.020 ~ 0.054 mm
(0.0008 ~ 0.0021 in)
A
B
"A"
30.296 ~ 30.346 mm
(1.1923 ~ 1.1947 in)
"B"
22.45 ~ 22.55 mm
(0.8839 ~ 0.8878 in)
"A"
30.399 ~ 30.499 mm
(1.1968 ~ 1.2007 in)
"B"
22.45 ~ 22.55 mm
(0.8839 ~ 0.8878 in)
----
2 - 4
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SPEC
Standard
0.05 mm
(0.002 in)
----
0.05 mm
(0.002 in)
----
----
----
0.08 mm
(0.003 in)
30.196 mm
(1.1888 in)
22.35 mm
(0.8799 in)
30.299 mm
(1.1929 in)
22.35 mm
(0.8799 in)
0.03 mm
(0.0012 in)
Limit

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