Yamaha YDS-3C (1966-67) technical specifications
Yamaha YDS-3C is produced in 1966-67. Engine is Two stroke, piston-port, parallel twin, Crankshaft supported in four roller bearings; needle-roller small-end and big-end bearings. Light-alloy cylinder head;, displacement 247 cc / 15.0 cu-in , produces power 24 hp @ 7500 rpm and 18.1 ft-lb 4.2 kgf-m @ 7500 rpm. Yamaha YDS-3C wet weight is 145 kg / 320 lbs. Yamaha YDS-3C has 2 photos.
Technical specifications
+ Add to 'Compare list'| Model: | YDS-3C |
| Years: | 1966-67 |
| Engine: | Two stroke, piston-port, parallel twin, Crankshaft supported in four roller bearings; needle-roller small-end and big-end bearings. Light-alloy cylinder head; |
| Capacity: | 247 cc / 15.0 cu-in |
| Bore x Stroke: | 56 x 50 mm |
| Compression Ratio: | 7.5;1 |
| Cooling System: | Air-cooled |
| Induction: | 2x Mikunis VM24SC with air filter. Direct-operating, coupled air slides. |
| Ignition: | Generator |
| Starting: | Kick |
| Electrical Equipment:: | Mitsubishi 65-watt dc generator charging six-volt battery through automatic voltage regulator. Coil ignition. 6in-diameter headlamp with pre-focus light unit; 35/35-watt main bulb. |
| Max Power: | 24 hp @ 7500 rpm |
| Max Torque: | 18.1 ft-lb 4.2 kgf-m @ 7500 rpm |
| Clutch: | Wet, multi-plate clutch mounted on left side of crankshaft |
| Transmission: | 5 Speed Helical-gear primary drive. Rear chain % x %in with top guard. Engine rpm at 30 mph in top gear, approximately 2,500. |
| Final Drive: | Chain |
| Gear Ratio: | 1st 2.545 2nd 1.533 3rd 1.167 4th 0.950 5th .0773 |
| Front Suspension: | Telescopic forks with hydraulic damping. |
| Rear Suspension: | Dual shocks swinging arm, Pivoted rear fork controlled by spring-and-hydraulic units with three-position adjustment for load. |
| Front Brakes: | Drum |
| Rear Brakes: | Drum |
| Front Tyre: | 3.00 -18 |
| Rear Tyre: | 3.25 -18 |
| Dimensions: | Length 2006 mm / 79 in Width 792.5 mm / 31.2 in Height 1066.8 mm / 42 in |
| Wheelbase: | 1470.5 mm / 51.9 in |
| Wet Weight: | 145 kg / 320 lbs |
| Fuel Capacity: | 11.4 Litres / 3.0 gal |
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