Yamaha YDS7 (1972)

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Make Model: Yamaha YDS-7


Jahr: 1972
Engine: Two stroke, piston-port, parallel twin
Capacity: 247 cc / 15.0 cu-in
Bohrung x Hub: 54 x 54 mm
Compression Ratio: 7.5;1
Kühlsystem: Luftgekühlt
Induction: 26mm Mikuni
Ignition: Mitsubishi contact breaker
Start: Kick
Max Power: 30 hp @7500 rpm
Max Torque: 21 ftlb @ 7000 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.
Endantrieb: Kette
Front Suspension: 34mm Telescopic forks
Hintere Aufhängung: Doppelter Stoßdämpfer
Front Brakes: 180mm twin leading shoe drum
Rear Brakes: 180mm single leading shoe
Front Tyre: 300 x 18
Rear Tyre: 3.25 x 18

Radstand: 1300 mm / 51.1 in
Nassgewicht: 145 kg / 320 lbs
Fuel Capacity: 11.4 Litres / 3.0 gal