Maintenance Specifications - Yamaha SZR 660 Service Manual

MAINTENANCE SPECIFICATIONS
Part
Valve springs:
Free
length:
Suction
Exhaust
Position size
(with
closed valve):
Suction
Exhaust
Winding sense (top view):
Suction
and exhaust
Slope
limit:
Suction
Exhaust
V\W
Compression
force (with closed valve):
Suction
Exhaust
Piston:
"D" piston size
"H"
measurement
point
<
y
—
D~
J
Piston
allowance
Piston pin off-centring
Piston-cylinder backlash
H
Standard
32.63
mm
36.46
mm
27.50
mm
31-00
mm
Clockwise
10.2-11.8
kg
12.3-14.1 kg
99.945 - 99.985
mm
2.5
mm
1.0
mm
Suction side
0-050
-
0.070
mm
Limit
2-571
.4
mm
2.571.6
mm
0.15
mm
Rings:
Type:
Upper
ring
Lower
ring
Sizes (BxT):
Upper
ring
Lower
ring
Scraper
ring
J3
\
i
ii=
i
a
B
B
L-T—
Trapezoidal
Conic
B=
1.2
mm
T
s=
3.8
mm
B =
1
.2
mm
T =
4.0mm
8 =
2.5
mm
T =
3.4
mm
2-5
MAINTENANCE SPECIFICATIONS
Part
Standard Limit
End
clearance
(with
mounted
ring):
Upper ring
Lower
ring
Scraper
ring
Side backlash
(with installed
ring):
Upper
ring
Lower
ring
Scraper
ring
0.30 ~ 0.45
mm
0.30 - 0.45
mm
0.20
-
0.70
mm
0.04 - 0.08
mm
0.03
~
0.07
mm
0.015-0.042
mm
—
Main
shaft:
"A" shaft width JT
*C* off-centring
©
nln
limit t_o
|1
*D
h
backlash
*£^
1
T"
small
end
-JJ
backlash
K
"
1
74.95 - 75.00
mm
0.35 ~ 0.65
mm
0.8 -
1
.0
mm
0.03
mm
Balancing weight;
Advance method
Cylinder
gear
Ciutch:
Friction plate:
Thickness
Quantity
Friction plate;
Thickness
Quantity
Clutch plate:
Thickness
Quantity
Distortion limit
Clutch spring:
Free length
Quantity
Clutch release
method
2.74 ~ 2.86
mm
6
parts
2.94 ~ 3.06
mm
2
parts
1.2
mm
7
parts
42.8
mm
5 parts
Rack and pinion external
traction
2.6
mm
2.8
mm
0.2
mm
40.8
mm
Gear
box:
Principal axis off-centring
limit
Intermediate shaft off-centring
limit
—
0.08
mm
0.08
mm
Selector:
Type
Drum
with
cam
and guide bar
2-6