Yamaha RD125C Servicehandbuch Seite 12

1-2. Specifications
A . General specifications
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9 R I
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Dimensions:
n v p r f l l I 1 pnnth
V V C I O l l L C I IU LI 1
7fi 9 ine (1 Q^Cy m m \ 7fi ine (1 Q 4 R m m \
Overall Width 33.1 ins. (840 mm.)
29.1 ins. (740 mm.)
Overall Height
41.7 ins. (1,060 mm.) 39.6 ins. (1,005 mm.)
Seat Height (unloaded) 28.7 ins. (729 mm.)
30.3 ins. (770 mm.)
Wheelbase
48.8 ins. (1,240 mm.) 49.0 ins. (1,245 mm.)
M i n . G r o u n d Clearance
6.1 ins. (155 mm.)
6.1 ins. (115 mm.)
Weight:
Net 228 Ibs. (103.5 kgs.) 256 Ibs. (116 kgs.)
Porfnrmnnr'a •
M i n . Turning Radius 82.7 ins. (2,100 mm.)
D'dMIty UlSLdltLc 46 ft. at 31 m.p.h. ( 14 m. at 50 kms/h.)
Engine:
M o d e l / T y p e
507/2-stroke, gasoline 397/2-stroke gasoline
Lubricating System Seperate Lubrication ( Y A M A H A Autolube)
C y l i n d e r T w o in parallel, Forward Inclined, T o r q u e Induction
Displacement 7.57 cu.in. (124 c.c.) 11.89 cu.in. (195 c.c.)
Bore and Stroke 1.693 ins. x 1.693 ins. 2.047 ins. x 1.811 ins.
(43 m m . x 4 3 mm.) (52 m m . x 4 6 mm.)
Starting S y s t e m Primary kick Starter Electric and Primary K i c k
Starter
Ignition System
Battery Ignition
Ignition T i m i n g
1.8 m m . B . T . D . C .
Spark Plug/Manufacturer B-8HS / N . G . K .
Carburetor:
T y p e / M a n u f a c t u r e r
Y 1 8 P - 1 C / T e i k e i Y 2 0 P - 1 A / T e i k e i
Main Jet #94
Jet Needle Type-Position
4 D 5 0 - 2
4 F 5 1 - 3
A i r Cleaner: Wet, F o a m Rubber
Prmnsrw ( " " 1 r i\so •
r r i m a r y L/IIVC.
C l u t c h Wet, Multiple-disk
r r i m a r y n c u u i / i i u n o y s i c i n Helical Gear
Primary Reduction Ratio 3.894 (74/19)
3.312 (53/16)
Capacities:
Gasoline T a n k / T y p e Fuel 11.5 lits. (3.0 U S g a l s . ) / L o w - L e a d G a s o l i n e / 8 6 + Octane
O i l T a n k / T y p e 1.5 lits. (1.6 U S qts.) Y a m a l u b e 2-cycle
T r a n s m i s s i o n / T y p e 700 ~ 800 c.c. 800 ~ 850 c.c.
(0.74 ~ 0 . 8 4 U S qts.) (0.84 ~ 0 . 9 0 U S qts.)
Motor oil S A E 1 0 W / 3 0
F r o n t F o r k s / T y p e
137 c.c. (4.6 oz.) 157 c.c. (5.3 oz.)
Motor Oil S A E 10W/30
Transmission:
T y p e Constant Mesh 5-speed Forward
R e d u c t i o n Ratio Ist
3.181 (35/11) 2 . 8 3 3 ( 3 4 / 1 2 )
2
Model R D 1 2 5 ( B )
R D 2 0 0 ( B )
Reduction Ratio 2 n d 1.812 (29/16)
1.705 (29/17)
3rd 1.300 (26/20)
1.250 (25/20)
4t h 1.045 (23/22) 1.045 (23/22)
otn 0.840 (21/25) 0.916 (22/24)
Secondary Reduction S y s t e m
Chain
Secondary Reduction Ratio 2.785 (39/14) 2.571 (36/14)
Chassis:
Model 507 397
Frame Steel tubing, d i a m o n d strueture
Suspension S y s t e m , F r o n t
Telescopic F o r k
Suspension S y s t e m , Rear Swing A r m
Steering S y s t e m :
Caster 62 3 0 '
Trail 3.5 ins. (90 mm.) 3.7 ins. (95 mm.)
R ra le i r\n ^uetom •
D 1 <3 I N 1 1 iy J y a l c l l l .
T y p e of Brake D r u m , Internal E x p a n s i o n , Front & Rear
Operation S y s t e m , F r o n t Right Hand Operation
Operation S y s t e m , Rear Right F o o t Operation
Tire Size:
F r o n t 2 . 7 5 - 1 8 - 4 P R
Rear 3 . 0 0 - 1 3 - 4 P R
Generating S y s t e m :
Model/Manufacturer K 1 0 8 - 1 2 / A C . Generator GS214-02/Starter d y n a m o
Manufacturer Hitachi Hitachi
Battery:
M o d e l / m f r .
A Y T 2 - 1 2 / F u r u k a w a 1 2 N 9 A - 3 A - 1 / G S
Capacity 12 V . 5.5 A H . 12 V . 9 A H .
Lighting:
Head light 12 V . 3 0 W / 3 0 W. 12 V . 3 5 W / 2 5 W.
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i aiingni
1 2 V . 8 W .
Stoplight 1 2 V . 2 3 W .
Meter Light
12V. 3 W . 12 V . 3 W x 2
Flasher Light
1 2 V . 27W.
High Beam Indicator Light 1 2 V . 2 W .
Neutral Light
1 2 V . 3 W .
Charge Light 1 2 V . 3 W .
N o t e :
The Research and Engineering Departments of Yamaha are continually striving to
further perfect all models. Improvements and modifications are therefore inevitable.
In light of this fact, all specifications within this manual are subject to change
without notice. Information regarding changes is forwarded to all Authorized
Yamaha Dealers as soon as available.