2 - 4
SPEC
MAINTENANCE SPECIFICATIONS
ENGINE
Item
Standard
Limit
Cylinder head:
Warp limit
----
0.05 mm
(0.002 in)
Cylinder:
Bore size
100.005 ~ 100.045 mm
(3.9372 ~ 3.9388 in)
100.1 mm
(3.94 in)
Measuring point
*
50 mm (2.0 in)
----
Camshaft:
Drive method
Chain drive (Left)
----
Camshaft cap inside diameter
23.000 ~ 23.021 mm
(0.9055 ~ 0.9063 in)
----
Camshaft journal diameter
22.967 ~ 22.980 mm
(0.9042 ~ 0.9047 in)
----
Camshaft journal-to-camshaft cap clearance
0.020 ~ 0.054 mm
(0.0008 ~ 0.0021 in)
----
Cam dimensions
Intake
“A”
35.69 ~ 35.79 mm
(1.4051 ~ 1.4091 in)
35.59 mm
(1.4012 in)
“B”
30.15 ~ 30.25 mm
(1.1870 ~ 1.1909 in)
30.05 mm
(1.1831 in)
“C”
5.74 mm (0.2260 in)
----
Exhaust
“A”
36.50 ~ 36.60 mm
(1.437 ~ 1.441 in)
36.40 mm
(1.4331 in)
“B”
30.15 ~ 30.25 mm
(1.187 ~ 1.191 in)
30.05 mm
(1.1831 in)
“C”
6.55 mm (0.2579 in)
----
C
A
B
MAINTENANCE SPECIFICATIONS
Summary of Contents for YFM660RN
Page 1: ...YFM660RN YFM660RNC SERVICEMANUAL LIT 11616 14 21 5LP 28197 E0 ...
Page 33: ...2 11 SPEC Cylinder head tightening sequence Item Standard Limit MAINTENANCE SPECIFICATIONS ...
Page 45: ...2 23 SPEC OIL FLOW DIAGRAMS 1 Oil tank 2 Oil pipe 2 3 Oil pipe 1 OIL FLOW DIAGRAMS ...
Page 110: ...3 54 CHK ADJ CHECKING THE BATTERY Charging method using a variable voltage charger ...
Page 111: ...3 55 CHK ADJ CHECKING THE BATTERY Charging method using a constant voltage charger ...
Page 327: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...
