Maintenance Specifications; Engine - Yamaha 2002 YFM350X Supplemental Service Manual

MAINTENANCE SPECIFICATIONS

ENGINE

Cylinder:
Bore size
Taper limit
Piston:
Piston size "D"
Measuring point "H"
Piston clearance
Oversize 2nd
4th
Piston off-set
Piston off-set direction
Inside diameter (piston pin bore)
Outside diameter (piston pin)
Piston ring:
Sectional sketch
Top ring:
2nd ring:
Oil ring:
End gap (installed)
Side clearance
Clutch:
Friction plate thickness/quantity
Warp limit
Friction plate thickness/quantity
Warp limit
Clutch plate thickness/quantity
Max. warpage
Clutch spring free length/quantity
Clutch spring minimum free length
Clutch release method
MAINTENANCE SPECIFICATIONS
Model
D
B
B
T
T
B
B
T
T
B
B
T
T
Top ring
2nd ring
Oil ring
Top ring
2nd ring
YFM350X(P) 2002
82.97 ~ 83.02 mm (3.267 ~ 3.269 in)
<0.05 mm (0.002 in)>
82.92 ~ 82.97 mm (3.265 ~ 3.267 in)
5.5 mm (0.22 in)
(From bottom line of piston skirts)
0.040 ~ 0.060 mm
(0.00157 ~ 0.00236 in)
H
83.5 mm (3.287 in)
84.0 mm (3.307 in)
0.5 mm (0.02 in)
Intake side
19.004 ~ 19.015 mm (0.7481 ~ 0.7486 in)
18.991 ~ 19.000 mm (0.7477 ~ 0.7480 in)
Barrel
1.2 mm (0.047 in)
3.3 mm (0.130 in)
Tapper
1.5 mm (0.059 in)
3.4 mm (0.134 in)
2.8 mm (0.110 in)
2.8 mm (0.110 in)
0.20 ~ 0.40 mm (0.00787 ~ 0.0157 in)
0.20 ~ 0.40 mm (0.00787 ~ 0.0157 in)
0.30 ~ 0.90 mm (0.012 ~ 0.035 in)
0.03 ~ 0.09 mm (0.0012 ~ 0.0035 in)
0.03 ~ 0.07 mm (0.0012 ~ 0.0028 in)
2.74 ~ 2.86 mm (0.107 ~ 0.113 in)/6
<2.64 mm (0.104 in)>
2.94 ~ 3.06 mm (0.116 ~ 0.120 in)/1
<2.84 mm (0.112 in)>
1.5 ~ 1.7 mm (0.059 ~ 0.066 in)/4
1.9 ~ 2.1 mm (0.0748 ~ 0.0827 in)/2
<0.2 mm (0.00787 in)>
47.8 mm (1.882 in)/5
46.5 mm (1.831 in)
Outer push (rack and pinon)
– 2 –
SPEC