| MODEL | YAMAHA XS 1100 MARTINI 1979 |
| Year | 1979 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder |
| Displacement / Capacity | 1101 cc / 67.2 cu in |
| Bore X Stroke | 71.5 x 68.6 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air cooled |
| Max Power | 70.8 kW / 95 hp @ 8500 rpm |
| Max Torque | 66.5 lb-ft (9.2 kgf-m) @ 6500 rpm |
| Ignition | TCI, vacuum advance |
| Induction | 4 x 34 mm Mikuni BS34SS carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 5 Speed |
| Clutch | Wet, multi-disc (8 drive plates, 7 driven plates) |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic fork, 175 mm / 6.9 in travel |
| Rear Suspension | Dual shocks, swingarm, preload adjustable, 80 mm / 3.1 in travel |
| Front Brakes | 2 x 298 mm discs |
| Rear Brakes | Single 298 mm disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 258 kg / 568.7 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.50-19 |
| Rear Tyre | 4.50-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 22 Litres / 5.8 US gal |
| Fuel Consumption | 40.3 mpg (average) |
| Top Speed | 202.8 km/h / 126 mph |
The Martini was a factory-approved two-piece fairing package for the 1979 XS1100, designed by John Mockett's team and made by Composite Laminate Products for Yamaha. It added recessed spotlights and lockable side pockets and was sold in Crystal Silver and Macho Maroon, with Yamaha claiming less drag and front-wheel lift. Engine and chassis are those of the standard XS1100 per the source page.
