Yamaha YFM660RP 5LP2-AE2 2002, Supplemental Service Manual

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SPEC
Piston rings:
Top ring
Type Barrel ----
Dimensions (B
×
T) 1.2
×
3.8 mm
(0.0472
×
0.1496 in)
----
End gap (installed) 0.30 ~ 0.45 mm
(0.0118 ~ 0.0177 in) 0.70 mm
(0.0276 in)
Side clearance (installed) 0.04 ~ 0.08 mm
(0.0016 ~ 0.0031 in) 0.13 mm
(0.0051 in)
2nd ring
Type Taper ----
Dimensions (B
×
T) 1.2
×
4.0 mm
(0.0472
×
0.1575 in)
----
End gap (installed) 0.30 ~ 0.45 mm
(0.0118 ~ 0.0177 in) 0.80 mm
(0.0315 in)
Side clearance 0.03 ~ 0.07 mm
(0.0012 ~ 0.0028 in) 0.13 mm
(0.0051 in)
Oil ring
Dimensions (B
×
T) 2.5
×
3.4 mm
(0.0984
×
0.1339 in)
----
End gap (installed) 0.2 ~ 0.7 mm
(0.0079 ~ 0.0276 in) ----
Side clearance 0.06 ~ 0.15 mm
(0.0024 ~ 0.0059 in) ----
Item Standard Limit
T
B
B
T
B
T
MAINTENANCE SPECIFICATIONS