Technical Overview
1988 Yamaha FZR 400 Technical Analysis & Specification Breakdown
Built around Yamaha's sport motorcycle platform, the 1988 Yamaha FZR 400 features a 400 cc (24.4 cu in) liquid-cooled in-line four, four-stroke configuration. Internal engine geometry specifies a bore and stroke of 56.0 x 40.5 mm (2.2 x 1.6 inches) with a 11.5:1 compression ratio.
Within MotoLibrary's Yamaha archive, this model family spans 2 indexed model years from 1988 to 1989, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Engine
Displacement 400.0 ccm (24.41 cubic inches)
Engine Type In-line four, four-stroke
Engine Details In-line four, four-stroke
Compression 11.5:1
Bore x Stroke 56.0 x 40.5 mm (2.2 x 1.6 inches)
Valves/Cylinder 4
Fuel System Carburettor. Carbs Four Mikuni BDST32
Fuel Control Double Overhead Cams/Twin Cam (DOHC)
Ignition TDI Digital
Cooling Liquid
Max RPM 14000
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