Yamaha YDS-7 SPECIFICATIONS, PRICE & IMAGES

Bike Features

Make Model:
Yamaha YDS-7

Year:
1972

Engine:
Two stroke, piston-port, parallel
twin

Capacity:
247 cc / 15.0 cu-in

Bore x Stroke:
54 x 54 mm

Compression Ratio:
7.5;1

Cooling System:
Air-cooled

Induction:
26mm Mikuni

Ignition :
Mitsubishi contact breaker

Starting:
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 %25 x %25in with top guard. Engine rpm at 30 mph in top gear,
approximately 2,500. 

Final Drive:
Chain

Front Suspension:
34mm Telescopic forks

Rear Suspension:
Twin shock

Front Brakes:
180mm twin leading shoe drum

Rear Brakes:
180mm single leading shoe

Front Tyre:
300 x 18

Rear Tyre:
3.25 x 18

Wheelbase:
1300 mm  / 51.1 in

Wet Weight:
145 kg / 320 lbs

Fuel Capacity :
11.4 Litres / 3.0 gal