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Honda CBR400RR (1988)

Entry updated

Honda CBR400RR (1988)

At a glance

Capacity
399 cc / 24.3 cu-in
Power
59 hp / 42.2 kW @ 12500 rpm
Torque
39 Nm / 28.8 ft-lb @ 10000 rpm
Seat height
750 mm / 29.5 in

The full picture.

The Honda CBR400RR was a motorcycle model produced in 1988. It has a four-stroke, transverse four-cylinder, DOHC engine with a capacity of 399 cc. The valve system has four valves per cylinder and the intake valve closes at 1mm lift, while the exhaust valve opens at 1mm lift. The engine is cooled by a liquid cooling system with a radiator and cooling fan. It has a compression ratio of 11.3:1 and uses forced pressure and wet sump lubrication. The bike has a four-carburetor induction system and a triple-phase output alternator. It’s ignition is digitalized full transistor ignition, and the battery is 12v (6AH) YTX7A-BS. It starts with electric ignition and has a maximum power of 59 hp / 42.2 kW at 12500 rpm and maximum torque of 39 Nm / 28.8 ft-lb @ 10000 rpm. The clutch is multi-plate, wet and uses a six-speed transmission, with final drive provided by a chain. The frame is a twin-spar, box-section aluminum design, and the bike has 41mm Showa damper-rod forks with adjustable pre-load for the front suspension and Showa gas/oil shock with adjustable preload and compression for the rear suspension. The front brakes have two 275mm discs with 4 piston calipers, while the rear brake has a single 220mm disc with a 2 piston caliper. It has a wheelbase of 1375mm / 54.1 in and weighs 163 kg / 359.4 lbs. It has a fuel capacity of 15 Litres / 4.0 gal. The CBR400RR model has a rake of 24.3 degrees and a trail of 91 mm / 3.6 in. The dimensions are length 1990mm / 78.3 in, width 670mm / 26.4 in, and height 1080 mm / 42.5 in. The seat height is 750 mm / 29.5 in and the ground clearance is 125 mm / 4.9 in.


Technical specifications:

Make Model: Honda CBR 400RR

Motorcycle technical specifications
Year1988
EngineFour stroke, transverse four cylinder, DOHC, 4 valve per cylinder.
Capacity399 cc / 24.3 cu-in
ValveIntake valve closes @ 1mm lift / Exhaust valve opens @ 1mm lift
Bore x Stroke55 x 42 mm
Cooling SystemLiquid cooled; radiator with cooling fan
Compression Ratio11.3:1
LubricationForced pressure and wet sump
Oil Pump TypeTrockoid
Oil Capacity3.8 Liters
Induction4x 26mm Flat-side CV
ChargingTriple phase output alternator
IgnitionDigitalized full transistor ignition
Spark PlugNGK CR9EH-9 or ND U27FER-9
Battery12v (6AH) YTX7A-BS
StartingElectric
Max Power59 hp / 42.2 kW @ 12500 rpm
Max Torque39 Nm / 28.8 ft-lb @ 10000 rpm
ClutchMulti-plate, wet
Transmission6 Speed
Final DriveChain
Primary Drive2.117
Gear Ratio1st 3.307: 1 (43/13) 2nd 2.352: 1 (40/17) 3rd 1.875 (30/16) 4th 1.591 (35/22)3 5th 1.435 (33/23) 6th 1.318 (29/22)
FrameTwin-spar, box-section aluminum
Front Suspension41mm Showa damper-rod forks with adjustable pre-load
Rear SuspensionShowa gas/oil shock with adjustable preload and compression
Front Brakes2x 275mm discs 4 piston calipers
Rear BrakesSingle 220mm disc 2 piston caliper
Font Wheel17×3.5 in.
Rear Wheel17×4.5 in.
Front Tyre120/60-17
Rear Tyre150/60-18
Rake24.3 degrees
Trail91 mm / 3.6 in
DimensionsLength 1990mm / 78.3 in width 670mm / 26.4 in Height 1080 mm / 42.5 in
Wheelbase1375mm / 54.1 in
Seat Height750 mm / 29.5 in
Dry Weight163 kg / 359.4 lbs
Ground Clearance125 mm / 4.9 in
Fuel Capacity15 Litres / 4.0 gal