The Yamaha IT 425 motorcycle was produced in 1980 and has a two stroke, single cylinder, read valve engine with a capacity of 425 cc / 25.9 cu-in. It has a 38mm VM38SS Mikuni carburetor and CDI ignition. The kick starting bike can produce a maximum power of 36.9 hp / 27.5 kW @ 6000 rpm (rear tyre) and a maximum torque of 31 lb-ft / 4.23 kg-m @ 5500 rpm. The 5-speed transmission and the chain final drive ensure a smooth ride. The front suspension consists of 43mm Telescopic adjustable forks that offer a 300mm wheel travel, while the rear suspension is a Mono shock with adjustable spring preload and rebound damping that also has a 300mm wheel travel. The drum brakes on both the front and rear wheels, with respective tyre sizes of 3.00 -21 and 150/80 -18, provide good stopping power. The bike has a rake of 29.5 degrees, a trail of 125 mm / 4.9 in, a wheelbase of 1430 mm / 56.2 in, and a ground clearance of 285 mm / 11.2 in. The dry weight is 111 kg / 244.7 in, and the fuel capacity is 13.6 Litres / 3.5 US gal. Overall, the Yamaha IT 425 motorcycle is a powerful and reliable machine that can withstand a variety of terrains.
Technical specifications:
Make Model: Yamaha IT 425
| Year | 1980 |
|---|---|
| Engine | Two stroke, single cylinder, read valve |
| Capacity | 425 cc / 25.9 cu-in |
| Bore x Stroke | 85 x 75 mm |
| Cooling System | Air cooled |
| Compression Ratio | 7.3;1 |
| Induction | 38mm VM38SS Mikuni carburetor |
| Ignition | CDI |
| Starting | Kick |
| Max Power | 36.9 hp / 27.5 kW @ 6000 rpm (rear tyre |
| Max Torque | 31 lb-ft / 4.23 kg-m @ 5500 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Front Suspension | 43mm Telescopic adjustable forks, 300mm wheel travel |
| Front Wheel Travel | 250 mm / 9.8 in |
| Rear Suspension | Mono shock, adjustable spring preload and rebound damping, 300mm wheel travel |
| Rear Wheel Travel | 250 mm / 9.8 in |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| Front Tyre | 3.00 -21 |
| Rear Tyre | 150/80 -18 |
| Rake | 29.5 degrees |
| Trail | 125 mm / 4.9 in |
| Wheelbase | 1430 mm / 56.2 in |
| Ground Clearance | 285 mm / 11.2 in |
| Dry Weight | 111 kg / 244.7 in |
| Fuel Capacity | 13.6 Litres / 3.5 US gal |
