YAMAHA FJ600 (1984-1985) Specs, Performance & Photos

The Honda FJ600 was a motorcycle manufactured by Yamaha from 1984 to 1991. The bike came in a lightweight package with a top-half fairing and 72 hp on tap. In 1991, the bike was replaced by the Yamaha Diversion, also known as the Seca II.

In the North American market, the bike was sold as the FJ600 and is known for being the first Japanese motorcycle that featured a 600cc inline four-cylinder engine and a mono-shock absorber that handled the rear-end suspension.

The successor of the FJ600 machine was the Yamaha Diversion, which was part of a series of all-around touring motorcycles. The earlier Diversion models were fitted with a four-stroke, four-cylinder air-cooled engine. Also, the Diversion was known as the Seca II in the Noth American and Australian markets. Initially, the Seca II model came with a top fairing, while the lower one was available as an accessory.

The 1885 Yamaha FJ600 featured a half fairing with an integrated rectangular headlight, rectangular turn signals, a one-piece dual seat, a small windscreen, a black-finished exhaust system, and three-spoke cast aluminum wheels.

In the handling department, the machine had a conventional telescopic fork with 99 mm wheel travel for the front-end suspension. The rear suspension was handled by a rising rate five-way adjustable mono-shock, offering optimum performance and handling.

The 1985 Yamaha FJ600 packed two-piston calipers with two 267 mm discs on the front wheel, providing strong stopping power, while the rear wheel's braking power was achieved by a single-piston caliper and a 267 mm disc.

As for power, the bike was fitted with a 598cc four-stroke four-cylinder air-cooled engine fueled by four Mikuni BS32 carburetors, delivering a power output of 72 hp at 10,000 rpm and 54 Nm (40 lb-ft) torque at 8,000 rpm.