Yamaha MIO Service Manual page 23

Item
Camshaft
Drive system
Intake camshaft lobe dimensions
Measurement A
Measurement B
Exhaust camshaft lobe dimensions
Measurement A
Measurement B
Max. camshaft runout
Timing chain
Timing chain type/No. of links
Rocker arm/rocker arm shaft
Rocker arm inside diameter
Rocker arm shaft outside diameter
Rocker-arm-to-rocker-arm shaft
clearance
ENGINE SPECIFICATIONS
Chain drive (left)
A
B
25.881 ~ 25.981 mm (1.0189 ~ 1.0229 in) 25.780 mm
21.195 ~ 21.295 mm (0.8344 ~ 0.8384 in) 21.095 mm
A
B
25.841 ~ 25.941 mm (1.0174 ~ 1.0213 in) 25.740 mm
21.050 ~ 21.150 mm (0.8287 ~ 0.8327 in) 20.950 mm
----
DID SCR-0404 SDH/90
10.000 ~ 10.015 mm (0.3937 ~ 0.3943 in) 10.030 mm
9.981 ~ 9.991 mm (0.3930 ~ 0.3933 in)
0.009 ~ 0.034 mm (0.0004 ~ 0.0013 in)
2 - 3
Standard
SPEC
Limit
----
(1.0150 in)
(0.8305 in)
(1.0134 in)
(0.8248 in)
0.03 mm
(0.0012 in)
----
(0.3949 in)
9.950 mm
(0.3917 in)
0.08 mm
(0.0031 in)