YAMAHA IT Models/Series Timeline, Specifications & Photos

1984 announced the end of production of the IT 125, the IT 175 and the reduction in production of the IT 490 and the IT250, it also brought with it the arrival of another Enduro legend, the IT 200L – a compact, light, well balanced and powerful machine.

In the '70s, Yamaha was manufacturing some distinct off road motorcycles, the first being the IT400, born in 1976. One year later the family grew up and included the 175 and 250 models, then the 125, 200, 425 and 465 appeared.

The big news in the powerplant is the bump in displacement from 465 to 487cc, accomplished simply by increasing the cylinder bore two millimeters. This follows the large, seven-millimeter increase in stroke which boosted the IT's displacement from 425 to 465cc in 1981. Aside from the trendiness involved in increasing their open-classers' engine sizes, most manufacturers are nudging 500cc because more displacement is the most straightforward route to better power.

The Yamaha IT 465 model is a Enduro/Offroad bike manufactured by Yamaha . In this version sold from year 1982, the dry weight is 119.7 kg (264.0 pounds) and it is equiped with a Single cylinder, two-stroke motor. The engine produces a maximum peak output power of 35.00 HP (26.9 kW) @ 6000 RPM and a maximum torque of 42 Nm (31 lb-ft) @ 5500.

For 1980, Yamaha comes with a new 425cc, two stroke power plant out muscles many bigger engines. Yamaha`s reed valve Torque Induction churns out gobs of low end

torque and ensures steady, reliable power at any spped.

Based on the all-conquering YZ motocrossers, the IT 250 uses such high-tech innovations as YEIS, capacirot dicharge ignition, a chrome-moly double-cradle frame and Yamaha`s exclusive Monoshock suspension.

The IT 400 motorcycle design is a tought nut for any manufactured to track. Punching the IT trought tight wooded sections is easy.

The Yamaha IT175 was a motocross motorcycle modified to race in enduro competitions. The bike was manufactured from 1977 to 1983 and was part of the International Trial (IT) family that comprised several models, including the IT200, IT250, IT425, IT465, and IT490.

The first model was introduced in 1977 and packed a bored-out 125cc motocross engine that used the same port design as the YZ. The bike's frame was based on the one used on the YZ, but with a rake increased for more length and improved high-speed stability.

In 1979, Yamaha released an upgraded model under the IT175F designation, featuring a beefed-up frame and more suspension travel. In addition, the engine was modified to deliver more mid-range power. The front fork trail was reduced for a quicker steering response, and the CDI ignition system was upgraded.

The 1980 IT175G model shared the frame with the YZ125G motorcycle, allowing the adjustable rear shock to be mounted in a laid-down position. For the first time, Yamaha used a box-section aluminum swingarm along with a 36 mm air-assisted fork.

The 1977 Yamaha IT175 had a 171cc two-stroke single-cylinder air-cooled engine with a 34 mm Mikuni carburetor, delivering an output power of 22 hp with a peak force at 9,500 rpm and 17 Nm (13 lb-ft) torque at 8,000 rpm.

The bike's suspension was handled by a telescopic fork on the front and a single shock absorber on the rear, while the braking performance was achieved by drum units both front and back.