Yamaha Seca 900 Motorcycle - Street (1983)

The 1983 Yamaha Seca 900, officially designated XJ900RK Seca, was a landmark model as Yamaha's first liter-class sport bike. This model featured an air-cooled, transverse four-cylinder, DOHC, 2-valve per cylinder engine with an 853 cc displacement, producing between 85 and 97 horsepower. Its innovative design placed the alternator behind the cylinders for a narrower engine package. In the US market, the 1983 Seca 900 was a one-year-only model, primarily offered as a single trim. While the 1983 Yamaha Seca 900 was a short-lived model in the American market, its engine had an evolutionary history, and the model itself saw significant changes in other markets. Its 853 cc engine evolved from a 650 cc engine introduced in 1980, incorporating components from the Seca 750 and XJ650 Turbo. Post-1983, for non-US markets, the XJ900 model continued production. A notable change in 1984 was the relocation of the handlebar-mounted bikini fairing to a frame-mounted upper fairing, a modification often retrofitted to 1983 models due to high-speed instability concerns. Additionally, the engine displacement increased to 891 cc in 1984. FAQ:

Q: How can I ensure parts fit my 1983 Yamaha Seca 900?

A: To guarantee compatibility, please use our year and trim selector on this page to find parts specific to your model.

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