Maintenance Specifications; Power Unit - Yamaha 150A Service Manual

SPEC

MAINTENANCE SPECIFICATIONS

POWER UNIT

Item
CYLINDER HEADS
Warpage limit
(lines indicate straightedge
position)
CYLINDERS
Bore size
Wear limit
Taper limit
Out-of-round limit
PISTONS
Piston diameter (D)
Measuring point (H)
Piston-to-cylinder clearance
<Limit>
Oversize piston diameter
1st
2nd
PISTON RINGS
Type
(B)
(T)
End gap (installed)
<Limit>
Side clearance
CRANKSHAFT
Runout limit
CONNECTING RODS
Small-end axial
play (F)
Big-end side
clearance (E)
MAINTENANCE SPECIFICATIONS
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)
150 hp 175 hp
0.10 (0.004)
90.00 - 90.02 (3.543 - 3.544)
90.1 (3.55)
0.08 (0.003)
0.05 (0.002)
89.895 - 89.915 (3.5392 - 3.5400)
0.100 - 0.106 (0.0039 - 0.0042)
0.156 (0.0061)
90.15 (3.549)
90.40 (3.559)
Keystone
2.0 (0.079)
2.8 (0.110)
0.30 - 0.40 (0.012 - 0.016)
0.60 (0.024)
0.02 - 0.06 (0.001 - 0.002)
0.05 (0.002)
0.12 - 0.26 (0.005 - 0.010)
2-7
Model
200 hp
10 (0.4)
2.0 (0.08)
E
2
225 hp