These are the known mechanical and performance specifications for your 1987 Honda VF 400 F.
Basic Specs

Engine
Displacement399.00 ccm (24.35 cubic inches)
Type
DetailsV4, four-stroke
Max RPM12500
Compression11.0:1
Bore/Stroke55.0 x 42.0 mm (2.2 x 1.7 inches)
Valves/Cylinder4
FuelingCarburettor. Four Keihin VD40A, 27mm carburettors
IgnitionDigital; Two units, type Toyo Denso FW82-TRI
Exhaust4 in 2
LubricationWet sump
CoolingLiquid
Performance
Horespower55.00 HP (40.1 kW)
Torque35.00 Nm (3.6 kgf-m or 25.8 ft.lbs)
Top Speed172.0 km/h (106.9 mph)
Fuel Economy & Polution
Fuel Consumption4.50 litres/100 km (22.2 km/l or 52.27 mpg)
Fuel Capacity17.00 litres (4.49 gallons)
Emissions104.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame Typeround steel tubes
Rake
Trail
Front SuspensionShowa 35mm, with 4-position anti dive and adjustable air charge
Front Travel140 mm (5.5 inches)
Rear SuspensionHonda Pro-link monoshock, with adjustable air charge
Rear Travel110 mm (4.3 inches)
Seat
Seat Height780 mm (30.7 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,160 mm (45.7 inches)
Total Length2,085 mm (82.1 inches)
Total Width750 mm (29.5 inches)
Ground Clearance140 mm (5.5 inches)
Wheelbase1,415 mm (55.7 inches)
Dry Weight175.0 kg (385.8 pounds)
Wet Weight193.0 kg (425.5 pounds)
Wheels & Brakes
Front Tire/Tyre100/90-16H
Rear Tire/Tyre110/90-18H
Front BrakesSingle disc. inboard ventilated cast iron disk, 2-piston calipers
Front Brake Diameter
Rear BrakesSingle disc. inboard ventilated cast iron disk, 2-piston calipers
Rear Brake Diameter
Wheels
Resources
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Comments
Removable left hand frame tube is part of the cooling system.