1977 Yamaha RD 400

Make Model	Yamaha RD 400
Year	1977
Engine	Two stroke, parallel twin cylinder, reed-valve torque induction
Capacity	398 cc / 24.2 cu-in
Bore x Stroke	64 х 62 mm
Cooling System	Air cooled
Compression Ratio	6.2:1
Lubrication	Autolube
Induction	2x 28mm Mikuni carburetors
Ignition	Battery, dual coils, breaker points
Starting	Kick
Max Power	44 hp / 32.3 kW @ 7500 rpm
Max Torque	41.1 Nm / 4.2 kgf-m @ 7000 rpm
Clutch	Wet multiplate
Transmission	6 Speed
Final Drive	Chain
Front Suspension	Telescopic forks
Rear Suspension	Swing arm, dual shocks
Front Brakes	Single 267mm disc
Rear Brakes	Single 267mm disc
Front Tyre	3.00S-18
Rear Tyre	3.50S-18
Dimensions	Length 1995 mm / 78.5 in Width 760 mm / 3.0 in Height 1060 mm / 41.7 in
Wheelbase	1320 mm / 51.9 in
Seat Height	800 mm / 31.4 in
Ground Clearance	150 mm / 5.9 in
Dry Weight	165.5 kg / 364.8 lbs
Wet Weight	171 kg / 376 lbs
Fuel Capacity	16.5 Litres / 4.3 US gal
Consumption Average	43 mpg
Standing ¼ Mile	14.1 sec / 90.1 mph 145 km/h
Top Speed	172 km/h / 106.8 mph