Model Name:BRONCO
Manufacturer:YAMAHA
Model Year:1997
It was a SEROW-based scrambler motorcycle that was designed in the image of DT-1. It replicated the atmosphere of those days by adopting front/rear plated fenders, a 19-inch front wheel, and a side cover that looked like a number plate.
Specifications:
[Basic spec]
| Manufacturer | YAMAHA | Engine Type | 4 Cycle Air-Cooled SOHC 2-Valve |
|---|---|---|---|
| Model Name | BRONCO | Starter | Self Starter |
| Grade | - | Maximum Output (ps) | 20.0ps(14.7kw)/8000rpm |
| Drive Train | - | Maximum Torque (kgf/m) | 1.9kg-m(18.6N-m)/7000rpm |
| Model Type | - | Curb Weight | 123 |
| Displacement | 223 | Dry Weight | 108 |
| Sales Launch Year | 1997/5 | Fuel Efficiency by Catalog | 54.0 km/L (at 60 km/h) |
| Height/Width/Length | 1140/-/2030 | Fuel Tank Capacity | 8.3 |
| Seat Height | - | Distance to Empty | - |
| Front Tire Indication | 2.75-19 43P WT | Fuel Supply | Carburetor |
| Rear Tire Indication | 120/80-18 62P WT |
[Service data]
| Standard Plug | DR8EA | Chain Size | 428 |
|---|---|---|---|
| Number of Used Plugs | 1 | Chain Link Number | 120 |
| Engine Oil Amount | 1.3 | Battery Code | YTZ7S |
| Engine Oil (Refill) | 1L | Headlight | 12V 60w/55w |
| Engine Oil (Element Replacement) | 1.1L | Headlight Type | H4 |
| Front Blinker Rating | 12V 10w | Headlight Remarks | - |
| Drive Sprocket Teeth Number | 15 | Tail Light Rating | 12V 21w/5w |
| Driven Sprocket Teeth Number | 45 | Rear Blinker Rating | 12V 10w |
[Machine detail]
| Motor Model Code | 5BT | Caster Angle | 27.5 Degrees |
|---|---|---|---|
| Bore (mm) | 70 | Trail (mm) | 134 |
| Storke (mm) | 58 | Minimum Ground Clearance | - |
| Compression Ratio | 9.5 | Distance Between Axes | - |
| Ignition Method | C.D.I. | Streering Angle (Right) | - |
| Engine Lubrication Type | Compulsory Force Feeding Wet Sump | Turning Angle (Left) | - |
| Frame Type | Steel Pipe Diamond | Mirror Screw Hole Diameter | 10mm |
| Minimum Rotaion Radius | 2.1 | Fuel Tank Reserve Capacity | - |
[Underbody detail]
| Front Brake Type | Hydraulic Single Disc | Suspension Type (Rear) | Swing Arm |
|---|---|---|---|
| Front Brake Remarks | - | Number of Rear Shock Absorbers | - |
| Rear Brake Type | Drum (Leading Trailing) | Rear Suspension Stroke | - |
| Rear Brake Remarks | - | Rear Wheel Travel | - |
| Suspension Type (Front) | Telescopic | ABS | - |
| Front Fork Type | - | Drive Train | - |
| Front Suspension Stroke | - | Differential Oil Amount | - |
| Front Fork Diameter | - | Chain Remarks | - |
[Equipment]
| Seat Lowering Allowance | - | Theft Prevention Device | - |
|---|---|---|---|
| Mirror Screw Hole Diameter | 10mm | Tail Light Bulb Type | S25 |
| Mirror Remarks | Use screw type mirror or reverse screw adapter. | Tail Light Base Shape | BAY15D |
| Electronic Device Remarks | - | Tail Light Base Shape 2 | - |
| Fuel Gauge | - | Tail Light Remarks | Glass Shape G18 Also Installable |
| Clock | - | Front Blinker Bulb Type | G18 |
| Hazard | - | Front Blinker Base Shape | - |
[Engine detail]
| Clutch Type | Wet Multiple Plate | Tappet Clearance (mm) EX | - |
|---|---|---|---|
| Transmission | 6-Stage Normal Shift | Idling Initial Value (rpm) | - |
| Number of Gears | 6 | Needle Steps (Clip Location) | - |
| Gear Ratio | 2.923 / 1.888 / 1.428 / 1.125 / 0.925 / 0.793 | Float Level (mm) | - |
| Primary Reduction Ratio | 3.318 | Air Screw Return | - |
| Secondary Reduction Ratio | 3 | Main Jet Type | - |
| Variable Speed Vehicle Gear Ratio | - | Main Jet Number | #117.5 |
| Tappet Clearance (mm) IN | - |
[Other spec]
| Clutch Cable Length | - | Rear Brake Cable Length | - |
|---|---|---|---|
| Choke Cable Length | - | Other Cables | - |
| Meter Cable Length | - | Engine Number (Production Launch) | - |
| Throttle Cable Length | - | Engine Number (Production End) | - |
| Front Brake Cable Length | - |
[See Moto Index of YAMAHA]
[See Accessories for YAMAHA BRONCO]
