Suzuki GS400, year by year A totally new model. The air cooled, four valve GS400E engine traces its roots back to the first Suzuki four-strokes. The GS400E was a very short-lived model and was soon replaced by the GS500E. GS 400 E 1991 Overall Length: 2 085 mm (82.1 in) Overall Width: 750 mm (29.5 in) Suzuki GS400E - Wikipedia The Suzuki GS400E is a motorcycle that was part of the Suzuki GS series in production between 1978 and 1984. Engine. The engine was a 399 cc plant that featured DOHC with four valves per cylinder. The claimed output of the engine is 39 bhp (29 kW) at 8 rpm and 2.8 kg.m of torque at 6600 rpm.
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