Yamaha F50D Servise Manual page 32

SPEC
Item
Piston ring
Top ring
Type
Dimension height (B)
Dimension width (T)
End gap (*1)
Side clearance
2nd ring
Type
Dimension height (B)
Dimension width (T)
End gap (*1)
Side clearance
Oil ring
Dimension height (B)
Dimension width (T) (*1)
End gap (*1)
Side clearance
Connecting rod
Small end inside diameter
Big end inside diameter
Big end side clearance (*1)
Big end bearing thickness (*1)
Green
Pink
Red
Yellow
Crankpin oil clearance
Crankshaft
Journal diameter
Crankpin diameter
Runout
Crankpin width
(*1) The figures are for reference only.
1-11
Specification
Unit
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
Model
F50DET FT50CET
Barrel
1.170–1.190 (0.0461–0.0469)
2.250–2.450 (0.0886–0.0965)
0.150–0.300 (0.0059–0.0118)
0.040–0.080 (0.0016–0.0032)
Taper
1.470–1.490 (0.0579–0.0587)
2.400–2.600 (0.0945–0.1024)
0.300–0.500 (0.0118–0.0197)
0.030–0.070 (0.0012–0.0028)
2.340–2.460 (0.0921–0.0969)
2.750 (0.1083)
0.200–0.700 (0.0079–0.0276)
0.050–0.190 (0.0020–0.0075)
15.985–15.998 (0.6293–0.6298)
36.000–36.024 (1.4173–1.4183)
0.050–0.220 (0.0020–0.0087)
1.488–1.492 (0.0586–0.0587)
1.492–1.496 (0.0587–0.0589)
1.496–1.500 (0.0589–0.0591)
1.500–1.504 (0.0591–0.0592)
0.016–0.040 (0.0006–0.0016)
42.984–43.000 (1.6923–1.6929)
32.984–33.000 (1.2986–1.2992)
0.030 (0.0012)
21.000–21.070 (0.8268–0.8295)
FT50CED FT50CEHD