Difference between revisions of "Yamaha YDS-6"
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Revision as of 01:37, 10 November 2019
Yamaha YDS-6 | |
Manufacturer | |
---|---|
Production | 1972 |
Engine | Two stroke, piston-port, parallel twin |
Compression ratio | 7.5;1 |
Ignition | Mitsubishi contact breaker |
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. |
Suspension | Front: 34mm Telescopic forks Rear: Twin shock |
Brakes | Front: 180mm twin leading shoe drum Rear: 180mm single leading shoe |
Front Tire | 300 x 18 |
Rear Tire | 3.25 x 18 |
Wheelbase | 1300 mm / 51.1 in |
Weight | 145 kg / 320 lbs (wet) |
Recommended Oil | Yamalube 10w-40 |
Fuel Capacity | 11.4 Liters / 3.0 gal |
Manuals | Service Manual |
Engine
The engine was a Air-cooled cooled Two stroke, piston-port, parallel twin. The engine featured a 7.5;1 compression ratio.
Drive
Power was moderated via the Wet, multi-plate clutch mounted on left side of crankshaft.
Chassis
It came with a 300 x 18 front tire and a 3.25 x 18 rear tire. Stopping was achieved via 180mm twin leading shoe drum in the front and a 180mm single leading shoe in the rear. The front suspension was a 34mm Telescopic forks while the rear was equipped with a Twin shock. The YDS-6 was fitted with a 11.4 Liters / 3.0 gal fuel tank. The wheelbase was 1300 mm / 51.1 in long.
Photos
Overview
Yamaha YDS-6
Make Model | Yamaha YDS-7 |
---|---|
Year | 1972 |
Engine Type | Two stroke, piston-port, parallel twin |
Displacement | 247 cc / 15.0 cu-in |
Bore X Stroke | 54 x 54 mm |
Compression | 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 % x %in 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 Tire | 300 x 18 |
Rear Tire | 3.25 x 18 |
Wheelbase | 1300 mm / 51.1 in |
Wet Weight | 145 kg / 320 lbs |
Fuel Capacity | 11.4 Liters / 3.0 gal |