Superbike Upgrade: 1984 Yamaha FJ1400

By Dain Gingerelli
Published on February 16, 2017
article image
by Dain Gingerelli
1984 Yamaha FJ1400

1984 Yamaha FJ1400
Engine:
1,350cc air-cooled DOHC inline four, 82mm x 63.8mm bore and stroke, 10.5:1 compression ratio (1,097cc, 74mm x 63.8mm bore and stroke, 9.5:1 compression ratio stock)
Top Speed:
146mph (period test)
Carburetion:
Four Mikuni 36mm
Transmission:
5-speed, chain final drive
Electrics:
12v, electronic ignition

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