Yamaha XJ750 Maxim (1985-86)

The Yamaha XJ 750 Maxim is a motorcycle produced between 1985 and 1986. It features a liquid-cooled, four-stroke, transverse four-cylinder engine with a capacity of 749cc, producing a maximum power output of 86 hp at 9000 rpm and a maximum torque output of 61.8 Nm at 7500 rpm. The bike has a wet sump lubrication system, 4x 33mm Hitachi HSC carburetors, and Hitachi TID14-35 TCI ignition. It has a 5-speed transmission with a final drive on the shaft. The double-cradle frame houses a 38mm telescopic fork, front wheel travel of 150 mm, and a swing-arm rear suspension with rear wheel travel of 99 mm. The front brakes include two discs with 4-piston calipers, while the rear brake is a drum type. Front and rear tires have sizes of 100/90-19 and 130/90-16, respectively. The motorcycle weighs 215 kg dry and 237.6 kg wet, with a fuel capacity of 13 litres, and a fuel consumption average of 44.2 mpg. The standing quarter-mile time is 12.6 seconds at 104.7 mph, and the top speed of the bike is 205 km/h or 128 mph.

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Technical specifications:

Make Model: Yamaha XJ 750 Maxim

Year: 1985 – 86

Engine: Ffour stroke, transverse four cylinder, DOHC, 5 valves per cylinder

Capacity: 749 cc / 45.7 cu-in

Bore x Stroke: 65 x 56.4 mm

Cooling System: Liquid cooled

Compression Ratio: 11.2:1

Lubrication: Wet sump

Induction: 4x 33mm Hitachi HSC carburetors

Ignition: Hitachi TID14-35 TCI

Starting: Electric

Max Power: 86 hp / 62.7 kW @ 9000 rpm

Max Torque: 61.8 Nm @ 7500 rpm

Clutch: Wet/multi-disc

Transmission: 5 Speed

Final Drive: Shaft

Gear Ratio: 1st 35/16 (2.187) 2nd 30/20 (1.500) 3rd 30/26 (1.153) 4th 28/30 (0.933) 5th 26/32 (0.812)

Frame: Double Cradle

Front Suspension: 38mm Telescopic fork, Air, coil spring, oil damper.

Front Wheel Travel: 150 mm 5/ .9 in

Rear Suspension: Swing arm Coil spring, oil damper.

Rear Wheel Travel: 99 mm / 3.9 in

Front Brakes: 2x discs 4 piston caliper

Rear Brakes: Drum

Front Tyre: 100/90-19

Rear Tyre: 130/90-16

Rake: 31.5 degrees

Trail: 120 mm / 4.7 in

Dimensions: Length 2235 mm / 88.0 in Width 775 mm / 30.5 in Height 1160 mm / 45.7 in

Wheelbase: 1520 mm / 59.8 in

Seat Height: 760 mm / 29.9 in

Ground Clearance: 145 mm // 5.7 in

Dry Weight: 215 kg / 474 lbs

Wet Weight: 237.6 kg / 524 l lbs

Fuel Capacity: 13 Litres / 3.4 US Gal

Consumption Average: 44.2 mpg

Standing 1/4 Mile: 12.6 sec / 104.7 mph

Top Speed: 205 km/h / 128 mph