| MODEL | PUCH GS 504 F 4 T 1986 |
| Year | 1986 |
| Engine Type | Single cylinder, four-stroke, 4 valves, OHC |
| Displacement / Capacity | 502 cc / 30.6 cu in |
| Bore X Stroke | 90 x 79 mm / 3.5 x 3.1 in |
| Compression Ratio | 9.2:1 |
| Cooling System | Air |
| Max Power | 19.7 kW / 27 hp @ 7700 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | Single disc |
| Rear Brakes | Expanding (drum) brake |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 137 kg / 302 lb |
| WHEEL SPECS | |
| Front Tyre | 3.25-21 |
| Rear Tyre | 4.50-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 9.5 Litres / 2.5 US gal |
| Fuel Consumption | — |
| Top Speed | 130 km/h / 80.8 mph |
The 500 cc air-cooled four-valve four-stroke single in the Puch GS enduro range, built on the same chassis as the 350 and 560 four-strokes. Output is modest at 27 hp, tuned for tractability off-road rather than outright speed.
