1-14
Power unit technical data
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A
Crankcase assembly
(*1) The figures are for reference only.
Item
Unit
Model
F150B
FL150B
Cylinder
Bore
mm (in)
94.000–94.017 (3.7008–3.7014)
Piston
Diameter
mm (in)
93.921–93.941 (3.6977–3.6985)
Measuring point
mm (in)
14.0 (0.55)
Piston clearance (*1)
mm (in)
0.075–0.080 (0.0030–0.0031)
Ring groove (Top)
mm (in)
1.23–1.25 (0.0484–0.0492)
Ring groove (2nd)
mm (in)
1.22–1.24 (0.0480–0.0488)
Ring groove (Oil)
mm (in)
2.51–2.53 (0.0988–0.0996)
Piston ring
End gap measuring point
mm (in)
20.0 (0.8)
Top ring
Type
Barrel
Dimension height (B)
mm (in)
1.17–1.19 (0.0461–0.0469)
Dimension width (T)
mm (in)
2.80–3.00 (0.1102–0.1181)
End gap
mm (in)
0.15–0.30 (0.0059–0.0118)
Side clearance
mm (in)
0.04–0.08 (0.0016–0.0031)
2nd ring
Type
Taper
Dimension height (B)
mm (in)
1.17–1.19 (0.0461–0.0469)
Dimension width (T)
mm (in)
3.70–3.90 (0.1457–0.1535)
End gap
mm (in)
0.30–0.45 (0.0118–0.0177)
Side clearance
mm (in)
0.03–0.07 (0.0012–0.0028)
Oil ring
Dimension height (B)
mm (in)
2.40–2.47 (0.0945–0.0972)
Dimension width (T)
mm (in)
2.30–2.70 (0.0906–0.1063)
End gap
mm (in)
0.15–0.60 (0.0059–0.0236)
Side clearance
mm (in)
0.04–0.13 (0.0016–0.0051)
Connecting rod
Big end side clearance (*1)
mm (in)
0.14–0.31 (0.006–0.012)
Crankpin oil clearance (*1)
mm (in)
0.027–0.052 (0.0011–0.0020)
Crankshaft
Journal diameter
mm (in)
51.980–52.000 (2.0465–2.0472)
Crankpin diameter
mm (in)
49.980–50.000 (1.9677–1.9685)
Runout limit
mm (in)
0.03 (0.0012)
Crankpin width
mm (in)
22.0–22.10 (0.8661–0.8701)
Summary of Contents for F150B
Page 1: ...SERVICE MANUAL 6BM 28197 5L 11 F150B FL150B ...
Page 4: ......
Page 211: ...6 34 Vapor separator 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Page 311: ...8 32 Shimming regular rotation model 0 1 2 3 4 5 6 7 8 9 10 A Shim location F R P T3 T1 T2 ...
Page 351: ...8 72 Shimming counter rotation model 0 1 2 3 4 5 6 7 8 9 10 A Shim location F R P T3 T2 T4 T1 ...
Page 448: ...A 1 MEMO ...
Page 451: ......
Page 452: ...Printed in China Jul 2008 0 6 1 ABE E_4 YAMAHA MOTOR CO LTD ...
Page 458: ......