Yamaha TT250: history, specs, pictures

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Yamaha-tt250-rear-left.jpg
Yamaha TT250
Manufacturer
Also called TT 250
Production 1980 - 1982
Class Enduro
Engine
Single cylinder, four-stroke, air-cooled
Bore / Stroke 76.2mm x 76.2mm
Compression ratio 9.7:1
Top Speed 61 mph
Fuel System Carburetor
Spark Plug NGK BP7ES '80 , '81-82
Transmission Gear box: 5-Speed

Final Drive: Chain

Clutch: Wet multi-plate
Final Drive Chain: 520x100 ‘81-82[1]
Front Sprocket 14T ‘81-82[1]
Rear Sprocket 49T ‘81-82[1]
Suspension Front: Stanchion tube diameter
Rear: Adjustable preload monoshock
Brakes Front: Drum
Rear: Drum
Front Tire 300-21
Rear Tire 510-17
Wheelbase 55.98 inches (1422 mm)
Seat Height 32.99 inches (838 mm)
Weight 242 lbs (dry), 108.0 kg (wet)
Oil Filter K&N KN-145[2]
Recommended Oil Yamalube 10w-40
Fuel Capacity 0.53 Gallon (2.00 Liters)
Related Yamaha TT225
Yamaha TT250
Yamaha TT350
Yamaha TT500
Yamaha TT600
Manuals Service Manual


The Yamaha TT 250 was a Single cylinder, four-stroke, air-cooled Trial motorcycle produced by Yamaha between 1980 and 1982.

Engine[edit]

A 76.2mm bore x 76.2mm stroke result in a displacement of just 249.0 cubic centimeters.

Drive[edit]

The bike has a 5-Speed transmission. Power was moderated via the Wet multi-plate.

Chassis[edit]

It came with a 300-21 front tire and a 510-17 rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a Stanchion tube diameter while the rear was equipped with a Adjustable preload monoshock. The TT 250 was fitted with a 0.53 Gallon (2.00 Liters) fuel tank. The wheelbase was 55.98 inches (1422 mm) long.

1981 Yamaha TT 250[edit]

The TT250 (and its XT 250 brother) have several hidden secrets. They are light at about 107.04 Kg (236 pounds) with the 2.8 Kg (6.2 pound) silencer removed (CRF 230 is 105 Kg (233 lbs). 105 kg is pretty light for a four-stroke. They have a low seat height of 83.82 cm (33 in) which makes touching the ground twixt trees easier.


See Also[edit]


In Media[edit]

References[edit]

  1. 1.0 1.1 1.2 2019 Western Power Sports Catalog. Western Power Sports. 2019. 
  2. 2019 K&L Supply Co Catalog. K&L Supply Co. 2019.