Other info from "Every Suzuki Ever Built" web site
https://suzukicycles.org/1970-1979/index.html
1983 Suzuki year code: D [TABLE="border: 0, cellpadding: 2, cellspacing: 0"]
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The GSX750ES, introduced in 1983 (called GSX750E in Japan), was based on the naked GSX750E. Like its naked borther, the GSX750ES got the air and oil-cooled 16-valve engine with 84 hp (72 ps in Japan). The new GSX750 line was the smallest, lightest and smoothest of Suzuki's 750cc machines so far. Almost everything on the bike was new, including the cylinder head and the frame.
The new 747cc engine shared only the cylinder measurements with its precessor (63 mm bore, 53 mm stroke. It weigh 16,8 kg (37 lbs) less than the '82 GSX750 engine. Even the exhaust system was made 5,3 kg (11,7 lbs) lighter. The new engine was even shorter, narrower and lower than its precessor.
The maximum power output had increased from 81 to 86 hp by enlargening the valves, increasing the compression ratio and re-designing the cam shafts, exhaust system and the air filter box. Comparing with modern engines, the GSX750ES engine don't impress with its low-rev torque, but the older version of the engine had even less torque.
The GSX750ES had a 16-inch front wheel (100/90-16) for quicker steering and a 17-inch rear wheel (120/90-17). The craddle type frame was welded using steel pipes and profiles and the light alloy rear swing was an oil-damped Full-floater. An top fairing was mounted on the ES model.
The GSX750ES proved to be a fantastic bike for its time. It was sporty, fast and practical. It was easy to manouvre and good for speeds over 200 kph. In many countries it was the best-selling Suzuki in 1983. In Sweden it was actually the best selling bike of the year, period.
An eight-page Japanese sales brochure can be found on the
GSX750E brochures page.
Starting frame number: GR72A-100001
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1983 Suzuki GSX 750 ES
Overall Length: 2 155 mm (84.8 in)
Overall Width: 765 mm (30.1 in)
Overall Height: 1 260 mm (49.6 in)
Seat Height: 780 mm (30.7 in)
Wheelbase: 1 480 mm (58.3 in)
Ground Clearance: 155 mm (6.1 in)
Dry Weight: 210 kg (462 lbs)
Engine: Air/oil cooled 747cc inline-4, DOHC, 16 valves. 84 hp (61.5 kW) @ 9 500 rpm, 66.6 Nm (6,.6 kpm) @ 8 500 rpm
Click on the image for larger format.
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1983 Suzuki GSX 750 ES
Overall Length: 2 155 mm (84.8 in)
Overall Width: 765 mm (30.1 in)
Overall Height: 1 260 mm (49.6 in)
Seat Height: 780 mm (30.7 in)
Wheelbase: 1 480 mm (58.3 in)
Ground Clearance: 155 mm (6.1 in)
Dry Weight: 210 kg (462 lbs)
Engine: Air/oil cooled 747cc inline-4, DOHC, 16 valves. 84 hp (61.5 kW) @ 9 500 rpm, 66.6 Nm (6,.6 kpm) @ 8 500 rpm
Click on the image for larger format.
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