The Yamaha Timberwolf is a four-wheeled all-terrain vehicle (ATV) - also known as a quad - that was sold during the 1990s in the United States. From 1997 through 1999 it was also marketed as the Bear Tracker. The Timberwolf was available in both a 2 x 4 and a 4 x 4 version. Yamaha has suggested that the Timberwolf was the first sport-utility quad on the market, although there are those who dispute the claim.
Both the 2 x 4 and 4 x 4 models featured a 229.6cc four stroke, air-cooled engine. This engine was a single overhead camshaft (SOHC) design. Bore and stroke were 71mm x 58mm and carburetion was 24mm Mikuni. The compression ratio on the ATV was 8.7:1 and it featured a CDI electric 12v 12 AH ignition system.
Drivetrain and Suspension
The Timberwolf was equipped with a 5-speed transmission with reverse. The clutch was automatic. As mentioned, Yamaha produced both two-wheel and four-wheel drive versions.
The ATV suspension consisted of MacPherson struts in front with a 4.9" travel and Swingarm suspension with a single shock in the back, also with a 4.9" travel.
Brakes and Tires
The brakes were dual drum in the front, drum sealed in the back. Tires were all-terrain, measuring 23 by 8-10 in front and 23 by 10-10 in the rear for the 4 x 4. The 2 x 4s tires were slightly smaller: 22 by 7-10 in front, 22 by 10-10 in the back.
Weights and Measures
The 2 x 4 model measured 71.9" lengthwise. It was 40.4" wide and 42.6" high. The seat sat 30.7" from the ground, and the vehicle had 6.1" of ground clearance. The dry weight of the 2 x 4 was 199kg.
The 4 x 4 model measured 72.4" lengthwise. It was 43.5" wide and 40.4" high. The seat sat 31.1" from the ground, and the vehicle had 6.6" of ground clearance. The dry weight of the 4 x 4 was 230kg.
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