7
TECHNICAL DATA
1. TECHNICAL DATA 250 c.c Model 353/04
------------------------------------------------------------------------------------------------
Engine Two-stroke, air-cooled
Number of cylinders One
Bore 65 mm
Stroke 75 mm
Cylinder capacity 248.5 c.c.
Compression ratio 7.2 to 1 (YEZDI - 7.6 to 1)
Engine output 12 BHP (YEZDI - 13 BHP)
Fuel consumption at steady 60 km.p.h 3 litres/100 km
(37 m.p.h) (93 m.p.gallon)
Fuel tank capacity 13.5 litres (Jawa); 14.5 litres (Yezdi)
Maximum speed 105 km.p.h
(65 m.p.h)
Maximum climbing ability (fully laden) 45%
Dimensions of motorcycle --length 1980 mm
--height 1025 mm
--width 670 mm
Weight of motorcycle --dry 128 kg (Jawa); 131 kg (Yezdi)
--inc. fuel 140 kg (Jawa); 144 kg (Yezdi)
Carrying capacity (payload) 160 kg
Front wheel spindle maximum load 85 kg
Rear wheel spindle maximum load 214 kg
Primary drive of 3/8 x 3/8 in. chain 60 links
Final driver by 1/2 x 5/16 in. chain 120 links
Primary and final drive ratios:
Primary 45/22 T
Final 46/19 T
Bottom gear 24/12 x 19/12
Second gear 20/16 x 19/12
Third gear 17/19 x 19/12
Top gear 1/1 direct
Overall gear ratios:
Bottom gear 15.675 to 1
Third gear 9.800 to 1
Second gear 7.013 to 1
Top gear 4.952 to 1
Overall kickstarter ratio 3.41 to 1
Speedometer drive ratio 5/11 T
internal expanding brakes dia 165/35 mm
Braking distances from 40 km.p.h
(25 m.p.h) front wheel brake 30.8 m. (101.05 ft.)
rear wheel brake 30.8 m. (101.05 ft.)
both brakes applied 12.5 m. (41.01 ft.)
Front fork maximum stroke 130 mm (51/3 in.)
Pivoted rear fork maximum stroke 100 mm (3 15/16 in.)
Carburettor 2926 SBD
wheels Interchangeable
size of rims 1.85 B x 16 in.
size of front tyres 3.00 or 3.25 x 16 in.
size of rear tyres 3.25 x 16 in.
To Next Page
Loading...
Need help?
General
