1983 Benelli 654 Sport

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Specifications
- Category
- Sport
- Displacement
- 604.0 ccm (36.86 cubic inches)
- Displacement (cc)
- 604.00
- Engine details
- In-line four, four-stroke
- Power
- 50.0 HP (36.5 kW) @ 8700 RPM
- Top speed
- 165.0 km/h (102.5 mph)
- Compression
- 9.3:1
- Bore × stroke
- 60.0 x 53.4 mm (2.4 x 2.1 inches)
- Valves/cyl
- 2.0
- Fuel control
- Overhead Cams (OHC)
- Cooling
- Air
- Gearbox
- 5-speed
- Transmission
- Chain (final drive)
- Front tyre
- 3.25-18
- Rear tyre
- 3.50-18
- Front brakes
- Dual disc
- Rear brakes
- Single disc
- Wet weight
- 203.0 kg (447.5 pounds)
- Fuel capacity
- 22.00 litres (5.81 US gallons)
The 1983 Benelli 654 Sport
1983 Benelli 654 Sport sits in that odd, fascinating corner of Benelli's catalog where Italian styling met Japanese engineering, a product of the brand's collaboration-era arrangement that saw Moto Morini and Honda-derived componentry folded into a traditionally Italian marque. This is a middleweight sport machine built for backroad riding rather than outright speed, with enough midrange grunt to make overtaking easy without demanding a racer's commitment. The riding position favors control over comfort for long hauls, and the fuel range suits day trips rather than touring. Owning one means accepting that parts sourcing and specialist knowledge matter more than they would with a mainstream Japanese bike of the same era, since Benelli's low production numbers left fewer survivors and thinner support networks.
The 1983 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1982 example should focus on mileage, service history, and condition rather than spec differences.
The typical buyer here is a European or UK-based enthusiast of 1980s Italian-Japanese hybrids, someone drawn more to the oddity and backstory of the 1983 Benelli 654 Sport than to its investment potential, which remains modest.
All Benelli 654 Sport years
More Benelli models, 1981–1983









