Maintenance Specifications; Engine - Yamaha YB50 Service Manual

MAINTENANCE SPECIFICATIONS

ENGINE

Cylinder head:
Warping limit
Cylinder:
Internal diameter
<Limit>
Taper limit
Eccentricity limit
Piston:
Piston size
Measurement point
Piston clearance
First clearance
Piston ring:
Cross section
B x T
Distance between ends
(installed)
<Limit>
Lateral clearance
Crank shaft:
Width of crank shaft "A"
Deflection limit "C"
Connecting rod big
end clearance "D"
Free play from small end "F"
Free play "E"
MAINTENANCE SPECIFICATIONS
Model
0.02 mm
* The lines indicate the measurement
39.993 ~ 40.012 mm
<40.1 mm>
0.05 mm
0.01 mm
39.952 ~ 39.972 mm
5 mm
0.034 ~ 0.047 mm
40.50 mm
1.5 x 1.8 mm
0.15 ~ 0.35 mm
<0.6 mm>
0.03 ~ 0.05 mm
37.90 ~ 37.95 mm
0.03 mm
0.2 ~ 0.5 mm
0.4 ~ 0.8 mm
0.004 ~ 0.017 mm
2-3
SPEC
YN50R