Yamaha MM700A, Manual, Page: 129 / 282

ENGINE 123
Table 1 ENGINE IDENTIFICATION (continued)
Engine Displacement
Model
cooling type mm (in.)
Liquid 70.5 x 59.6 698
x 2.35) (42.6)
Liquid 70.5 x 59.6
.
698
(2.78 x 2.35) (42.6)
Table 2 593 CC ENGINE SERVICE
mm (in.)
Piston diameter (2.5563-2.5565)
Distance measured from skirt bottom 1 0 (0.39)
Piston ring end gap 0.35-0.55 (0.01
Piston ring side clearance 0.02-0.06 (0.008-0.0024)
Piston skirt clearance 0.065-0.070 (0.0026-0.0028)
Wear limit 0.1 (0.004)
Piston pin outside diameter 19.995-20.000 (0.7872-0.7874)
Pin bore diameter in piston 20.004-20.01 5
Connecting rod
Small end diameter 24.995-25.008
Large end diameter
Small end side play
(0.03-0.04)
Big end side clearance
0.25-0.75
diameter 26.993-27.000 (1.0627-1.0629)
Crankshaft
Inner bearings 0.04 (0.001 6)
Crankshaft ends 0.03 (0.001 2)
Cylinder head (max.) 0.03 (0.001 2)
Cylinder bore 65.000-65.014
Out of round (maximum) 0.1 (0.0004)
Taper (maximum) 0.5 (0.002)
Reed stop height 10.3-1 0.7
Reed valve-to-seat 0.6 mm (0.024 in.)
*See text for measuring point.
Table 3 698 ENGINE
mm (in.)
Piston diameter
Distance measured from skirt bottom
Piston ring end gap
Piston ring side clearance
Piston skirt clearance
Wear limit
Piston pin outside diameter
Pin bore diameter in piston
Connecting rod
Small end diameter
Large end diameter
Small end side play
Big end side clearance
diameter
(continued)