Moto Guzzi 1000 Le Mans Mark IV (1984-87)

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The Moto Guzzi 1000 Le Mans Mark IV is a motorcycle from 1984 to 1987. It has a four-stroke, 90-degree V-twin alloy engine that is air-cooled with a capacity of 948cc. The engine has two valves per cylinder and is all plain bearing with two mains and split shell big ends, a one-piece forged crankshaft, steel con-rod split across big-end eye and pushrod valve operation. The bike has a compression ratio of 10.0:1, two 40mm Dell’Orto carburettors, and a battery and coil ignition system. With a double cradle frame, telescopic forks variable damping front suspension and dual shocks, 5-way preload and 4-way damping rear suspension, the Moto Guzzi 1000 Le Mans Mark IV provides a smooth ride. The bike weighs in at 215kg dry and 228kg wet with a fuel capacity of 25 litres. The maximum power is 81hp at 7400 rpm, with a maximum torque of 76.4 Nm at 6250 rpm. The fuel consumption average is 50.3 mpg, and the top speed is 137.1 mph. The braking distance for 60-0/100-0 is not provided, but the standing 1/4 mile distance is 12.7 seconds with a top speed of 110.5 mph. Overall, the Moto Guzzi 1000 Le Mans Mark IV is a powerful and reliable motorcycle.

Technical specifications:

Make Model: Moto Guzzi 1000 Le Mans Mark IV

Year: 1984 – 87


Engine: Four stroke, 90 degrees V twin alloy, longitudinally mounted, OHV, 2 valve per cylinder, All plain bearing engine with two mains and split shell big ends. One piece forged crankshaft. Steel con-rod split across big end eye. Valve operation: Pushrod from camshaft between cylinder bases in crankcase. Clearance by screw and locknut on rocker tips
Capacity: 948 cc / 57.8 cu-in
Bore x Stroke: 88 x 78 mm
Cooling System: Air cooled
Compression Ratio: 10.0:1
Induction: 2x 40mm Dell’Orto carburettors
Ignition: Battery & coil
Starting: Electric
Max Power: 81 hp / 59.1 kW) @ 7400 rpm
Max Power Rear Tyre: 72.6 hp / 54 kW @ 7250 rpm
Max Torque: 76.4 Nm / 56.4 lb-ft @ 6250 rpm
Clutch: Double plate, dry type
Transmission: 5 Speed
Final Drive: Shaft
Frame: Double cradle

Front Suspension: Telescopic forks variable damping
Rear Suspension: Dual shocks, 5-way preload and 4-way damping.
Front Brakes: 2x 270mm discs
Rear Brakes: Single 270mm disc
Wheels: Cast alloy
Front Tyre: 120/80 V16
Rear Tyre: 130/18 V18
Dry Weight: 215 kg / 475 lbs
Wet Weight: 228 kg / 503 lbs
Fuel Capacity: 25 Litres / 6.0 US gal
Consumption Average: 50.3 mpg
Braking 60 – 0 / 100 – 0: – / 36.8 m
Standing 1/4 Mile: 12.7 sec / 110.5 mph – 177.8 km/h
Top Speed: 137.1 mph / 220.6 km/h

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