Yamaha XT660 2004, Service Manual

Page: 35 / 463

2 - 8
SPEC
ENGINE SPECIFICATIONS
2nd ring
Ring type Taper ----
Dimensions (B
×
T) 1.20
×
4.00 mm (0.047
×
0.157 in) ----
End gap (installed) 0.35 ~ 0.50 mm (0.0138 ~ 0.0197 in) 0.85 mm
(0.0335 in)
Ring side clearance 0.030 ~ 0.070 mm (0.0012 ~ 0.0028 in) 0.11 mm
(0.0043 in)
Oil ring
Dimensions (B
×
T) 2.50
×
3.40 mm (0.098
×
0.134 in) ----
End gap (installed) 0.20 ~ 0.70 mm (0.0079 ~ 0.0276 in) ----
Ring side clearance 0.060 ~ 0.150 mm (0.0024 ~ 0.0059 in) ----
Crankshaft
Width A 74.95 ~ 75.00 mm (2.9508 ~ 2.9528 in) ----
Maximum runout C ---- 0.04 mm
(0.0016 in)
Big end side clearance D 0.350 ~ 0.650 mm (0.0138 ~ 0.0256 in) 1.0 mm
(0.04 in)
Big end radial clearance E 0.010 ~ 0.025 mm (0.0004 ~ 0.0010 in) ----
Small end free play F 0.16 ~ 0.40 (0.0063 ~ 0.0157 in) ----
Balancer
Balancer drive method Gear ----
Item Standard Limit
B
T
B
T
C
C
D
A
F
E