| MODEL | YAMAHA XT 225 SEROW 1985 - 1986 |
| Year | 1985 - 1986 |
| Engine Type | Four-stroke, single cylinder, SOHC, 2 valves |
| Displacement / Capacity | 223 cc / 13.6 cu-in |
| Bore X Stroke | 70 x 58 mm |
| Compression Ratio | 9.5:1 |
| Cooling System | Air cooled |
| Max Power | 15 kW / 20 hp @ 8000 rpm |
| Max Torque | 19 Nm / 14 lb-ft @ 7000 rpm |
| Ignition | CDI |
| Induction | 34 mm Mikuni carburetor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic fork, 226 mm / 8.9 in wheel travel |
| Rear Suspension | Single shock with swingarm, rebound adjustable, 145 mm / 5.7 in wheel travel |
| Front Brakes | Single 220 mm disc |
| Rear Brakes | Single 110 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2070 mm / 81.5 in |
| Overall Width | 805 mm / 31.7 in |
| Overall Height | 1161 mm / 45.7 in |
| Seat Height | 810 mm / 31.9 in |
| Wheelbase | 1349 mm / 53.1 in |
| Ground Clearance | 285 mm / 11.2 in |
| Dry Weight | 108 kg / 238 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 2.75-21 |
| Rear Tyre | 120/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 8.7 Litres / 2.3 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The first Serow 225 was a compact, tall-wheeled trail bike with a torquey 223 cc single suited to slow, steep terrain rather than road speed. It has a six-speed gearbox, a front disc, rear drum and long-travel suspension with a linkage-style rear setup.
