| MODEL | YAMAHA XJ 650 MAXIM 1982 |
| Year | 1982 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder |
| Displacement / Capacity | 653 cc / 39.8 cu in |
| Bore X Stroke | 63 x 52.4 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air-cooled |
| Max Power | 51.8 kW / 71 hp @ 9400 rpm |
| Max Torque | 57 Nm / 42 lb-ft @ 7500 rpm |
| Ignition | Transistorized |
| Induction | 4x 32 mm Hitachi carburetors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | Wet multiplate, 7 steel / 8 friction plates |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | Tubular steel dual cradle |
| Front Suspension | 26 mm air-assisted telescopic forks, 142 mm / 5.5 in travel |
| Rear Suspension | Twin Kayaba shocks, 5-way adjustable preload, 97 mm / 3.8 in travel |
| Front Brakes | Single 300 mm disc |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 744 mm / 29.3 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 203 kg / 450 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25 H19 |
| Rear Tyre | 130/90 H16 |
| FUEL SYSTEM | |
| Fuel Capacity | 13 Litres / 3.4 US gal |
| Fuel Consumption | 47 mpg |
| Top Speed | 120 mph / 193 km/h |
The Maxim was Yamaha's factory-custom take on the XJ650 four: a cruiser-styled shaft-drive 650 with a low seat and a narrow engine. The 1982 version added a more comfortable handlebar, an air-adjustable fork and a better seat. It was quick for its class with a 12.6 s quarter mile, and its price dropped as the cruiser boom moved on.
