Yamaha YB50 Service Manual page 21

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Automatic centrifugal clutch:
Thickness of clutch shoe
<Limit>
Free length of clutch shoe
spring
Clutch revolutions
Clutch binding revolutions
Transmission:
Main axle deflection limit
Drive axle deflection limit
Choke handle:
Type
Pedal friction force
Air filter oil grade (oil filter):
Carburettor:
Type/Manufacturer/Quantity
Main jet
Retaining position of jet
needles
Main air jet
Pilot jet
Pilot air screw
Valve seat size
engine idling
MAINTENANCE SPECIFICATIONS
Model
PHVA/Dellorto/1
(M.J.)
#78/5AD
(J.N.)
A12-3/5
(M.A.I.) ø 1.5
(P.J.)
#36/5AD
1
(P.A.S.) 1
/
±
4
1.800 r.p.m.
2 mm
<1 mm>
29.9 mm
3.600±250 rpm
5.600±400 rpm
0.08 mm
0.08 mm
Ratchet type
150 ~ 250 g
Oil for foam air filter
2T oil for air-cooled engines
#65//SA15 #74/5AD
A20-3/5
B10A-2/3
ø 1.5
#36/SA15
#38/5AD
1
1
1
1
/
2
/
±
/
1
4
8
8
1.2
2-4
SPEC
YN50R
YP12/GURTNER/1
#62/SA15
B10A-2/3
#38/SA15
7
/
1
/
8
8
1.4
1.800 r.p.m
#60/SA19
L3035H-1/3
#36/SA19
7
1
/
8

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2002 yb50

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