The Specifications for the 1983 Yamaha 225 Tri-Moto

All-terrain vehicles are great fun. They are recreational vehicles that have three or four wheels and are capable of driving off-road, on the beach or in snow. The 1983 Yamaha YTM225DXK Tri-Moto is an "epic" ATV. To justify the "epic" designation, Yamaha states; "It was the world's first ATV to feature shaft drive and electric start." New, the 1983 Yamaha YTM225DXK Tri-Moto cost $1,849.

  1. Dimensions and Weight

    • The 1983 Yamaha 225 Tri-Moto has a wheelbase of 45.3 inches. Its overall length is 71.1 inches and it has a width of 40.2 inches. Ground clearance for the ATV is 8.1 inches. The vehicle's seat height is 28.3 inches. Dry weight is 317.5 pounds for this tri-wheeler.

    Motor Specifications

    • The engine is a 4-stroke, single-overhead-cam with a displacement of 233 cc. The bore is 70 mm and the stroke is 58 mm. The carburetion system is a Mikuni VM 24 carburetor. The engine's compression ratio is 8.8 to 1. The maximum torque at 5,500 rpm is 12.2 foot-pounds. The engine's starting system is electric ignition with recoil backup. The oil capacity is 1.7 quarts and the fuel tank holds 2.38 gallons of gas.

    Transmission and Suspension Specifications

    • The 1983 Yamaha 225 Tri-Moto has a 5-speed transmission with an automatic clutch and a final drive shaft. The suspension system for the front of the ATV is a telescopic fork. The rear suspension is a monoshock.

    Brakes and Tires

    • The two front tires are 22 by 11 by 8 inches. The front braking system is a drum brake system. The rear tire is the same size as the front tires, but has a disc and not a drum brake.