Yamaha XS250 DOHC
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| Yamaha XS250 DOHC | |
| Manufacturer | |
|---|---|
| Production | 1982 - 83 |
| Class | Standard |
| Engine | Four stroke, 180° parallel twin, DOHC, 2 valves per cylinder |
| Compression ratio | 10.1:1 |
| Ignition | Coil and cb |
| Transmission | 6 Speed |
| Frame | Duplex cradle |
| Suspension | Front: Telescopic forks Rear: Dual shocks, swing arm, 5-position preload adjustable |
| Brakes | Front: Single 267mm disc Rear: 178mm Drum |
| Front Tire | 3.00-18 |
| Rear Tire | 3.50-18 |
| Wheelbase | 1359 mm / 53.5 in |
| Seat Height | 810 mm / 31.8 in |
| Weight | 165.5 kg / 365 lbs (dry), 174 kg / 392.4 lbs (wet) |
| Recommended Oil | Yamalube 10w-40 |
| Fuel Capacity | 14 Liters / 3.7 US gal |
| Manuals | Service Manual |
Engine[edit | edit source]
The engine was a Air cooled cooled Four stroke, 180° parallel twin, DOHC, 2 valves per cylinder. The engine featured a 10.1:1 compression ratio.
Drive[edit | edit source]
Power was moderated via the Wet multiplate.
Chassis[edit | edit source]
It came with a 3.00-18 front tire and a 3.50-18 rear tire. Stopping was achieved via Single 267mm disc in the front and a 178mm Drum in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Dual shocks, swing arm, 5-position preload adjustable. The XS250 DOHC was fitted with a 14 Liters / 3.7 US gal fuel tank. The bike weighed just 165.5 kg / 365 lbs. The wheelbase was 1359 mm / 53.5 in long.
Photos[edit | edit source]
Overview[edit | edit source]
Yamaha XS 250
In 1977 Yamaha extended their stake in the 250
market. With the RD two-strokes they were undisputed leaders in the sporting
sector; now they went out to attract commuters with a four-stroke.
Introduced outside Japan in the decidedly un-commuter-like setting of Marrakesh,
the XS250 had little of the style of the RD but a certain flamboyance, mainly in
the welter of go-faster stripes on tank and side panels.
A six-speeder, the XS was capable of about 82mph in both top and fifth gears and handled well. It suffered, and does so still, by being easily confused with the Kawasaki 250; neither has ever managed to challenge the four-stroke Honda's place at the head of the 250 league.
| Make Model | Yamaha XS 250 DOHC |
|---|---|
| Year | 1982 - 83 |
| Engine Type | Four stroke, 180° parallel twin, DOHC, 2 valves per cylinder |
| Displacement | 248 cc / 15.2 cu-in |
| Bore X Stroke | 56 х 50.6 mm |
| Cooling System | Air cooled |
| Compression | 10.1:1 |
| Lubrication | Wet sump |
| Induction | 2x 32mm Mikuni carburetors |
| Ignition | Coil and cb |
| Starting | Kick |
| Max Power | 30 hp / 22.3 kW @ 10000 rpm |
| Max Torque | 2.2 kgf-m / 15.2 lb-ft @ 8500 rpm |
| Clutch | Wet multiplate |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Frame | Duplex cradle |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shocks, swing arm, 5-position preload adjustable |
| Front Brakes | Single 267mm disc |
| Rear Brakes | 178mm Drum |
| Front Tire | 3.00-18 |
| Rear Tire | 3.50-18 |
| Wheelbase | 1359 mm / 53.5 in |
| Seat Height | 810 mm / 31.8 in |
| Dry Weight | 165.5 kg / 365 lbs |
| Wet Weight | 174 kg / 392.4 lbs |
| Fuel Capacity | 14 Liters / 3.7 US gal |