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