Yamaha ST225B
 | |
| Manufacturer | Yamaha |
|---|---|
| Production | 1997 - |
| Engine | Four stroke, single cylinder, SOHC |
| Compression ratio | 9.5:1 |
| Ignition type | CDI |
| Transmission | 6 Speed |
| Suspension | Front: Telescopic fork: 226mm wheel travel Rear: Swingarm rebound adjustable. single shock, 145mm.wheel travel |
| Brakes | Front: Single 220mm disc Rear: Single 110mm drum |
| Front Tire | 2.75-19 |
| Rear Tire | 120/80-18 |
| Seat height | 795 mm / 31.2 in |
| Weight | 123 kg / 271 lbs |
| Fuel capacity | 8.3 Litres / 2.2 US gal |
| Manuals | Service Manual |
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Engine
The engine was a Air cooled cooled Four stroke, single cylinder, SOHC. The engine featured a 9.5:1 compression ratio.
Chassis
It came with a 2.75-19 front tire and a 120/80-18 rear tire. Stopping was achieved via Single 220mm disc in the front and a Single 110mm drum in the rear. The front suspension was a Telescopic fork: 226mm wheel travel while the rear was equipped with a Swingarm rebound adjustable. single shock, 145mm.wheel travel. The ST225B was fitted with a 8.3 Litres / 2.2 US gal fuel tank. The bike weighed just 123 kg / 271 lbs.
Photos
Overview
Yamaha ST 225 Bronco
This scrambler model was designed with a good amount of the
retro styling that was popular in the Japanese motorcycle industry at the time.
Taking the frame and engine of the SEROW225 as its base, the fuel tank,
headlight, instruments, front and rear fenders and other parts were made of
chromed metal for a look of quality and a design similar to the rounded image of
the 1968 DT-1 model. Its appeal included its easy-to-use performance and ride
that made it well adapted to a wide range of on-road and off-road uses, and
attractive exterior styling.
| Make Model | Yamaha ST 225 Bronco |
|---|---|
| Year | 1997 - |
| Engine Type | Four stroke, single cylinder, SOHC |
| Displacement | 223 cc / 13.6 cu-in |
| Bore X Stroke | 70 X 58mm |
| Cooling System | Air cooled |
| Compression | 9.5:1 |
| Induction | 34mm Mikuni BST34 carburetor |
| Ignition | CDI |
| Starting | Kick |
| Max Power | 20 hp / 14.9 kW @ 8000 rpm |
| Max Torque | 1.9 kgf-m / 13.7 lb-ft @ 7000 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Front Suspension | Telescopic fork: 226mm wheel travel |
| Rear Suspension | Swingarm rebound adjustable. single shock, 145mm.wheel travel |
| Front Brakes | Single 220mm disc |
| Rear Brakes | Single 110mm drum |
| Front Tire | 2.75-19 |
| Rear Tire | 120/80-18 |
| Dimensions | Length 2030 mm / 79.9 in Width 800 mm / 31.4 in Height 1140 mm / 44.8 in |
| Seat Height | 795 mm / 31.2 in |
| Dry Weight | 123 kg / 271 lbs |
| Fuel Capacity | 8.3 Litres / 2.2 US gal |