Yamaha 5KM2-AE1, Service Manual

Page: 40 / 431

2 - 8
SPEC
MAINTENANCE SPECIFICATIONS
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) ----
Crankshaft:
Crank width “A” 74.95 ~ 75.00 mm
(2.9508 ~ 2.9528 in) ----
Runout limit C1 ---- 0.03 mm
(0.0012 in)
C2 ---- 0.03 mm
(0.0012 in)
Big end side clearance “D” 0.35 ~ 0.65 mm
(0.0138 ~ 0.0256 in) 1.0 mm
(0.0394 in)
Big end radial clearance “E” 0.010 ~ 0.025 mm
(0.0004 ~ 0.0010 in) ----
Balancer:
Balancer drive method Gear ----
Automatic centrifugal clutch:
Clutch shoe thickness 1.5 mm (0.06 in) 1.0 mm
(0.04 in)
Clutch-in revolution 1,900 ~ 2,300 r/min ----
Clutch-stall revolution 3,350 ~ 3,850 r/min ----
Item Standard Limit
B
T
B
T
E
A
D
C1
C2