Yamaha RD400
• = no change
RD400C
RD400D
RD400E
RD400F
RD400 Daytona Special
performance
Top speed
95.00 mph
117.00 mph
115.00 mph
--
112.00 mph
1/4 mile, seconds, mph
14.14 @ 89.64
12.99 @ 97.71
13.09 @ 100.33
--
14.18 @ 91.37
0-30 mph
3.1 sec.
2.1 sec.
--
--
2.07 sec.
0-60 mph
5.8 sec.
4.3 sec.
--
--
6.22 sec.
Braking distance from 30 mph
34.0 ft.
28.8 ft.
--
--
37.0 ft.
Braking distance from 60 mph
121.0 ft.
135.4 ft.
--
--
131.0 ft.
Average fuel mileage
45.00 mpg
48.00 mpg
--
--
44.00 mpg
Price USD
$1219.00
$1240.00
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--
$1694.00
engine
Type
two-stroke
Cylinder arrangement
parallel twin
Valve actuation
n/a
Valve arrangement
piston port
Valve adjustment
n/a
Cooling
air
Bore x stroke
64 x 62 mm
Displacement
398 cc
Compression ratio
6.2:1
6.4:1
BHP (actual)
34.43 @ 7500 rpm (actual)
--
34.31 @ 6500 rpm
Torque, ft/lbs
25.16 @ 7000 rpm
--
29.70 @ 6000 rpm
Carburation
2 x 28mm Mikuni
Ignition system
CDI
battery/points
Lubrication system
oil injection
Oil capacity, US pint
3.8
3.4
Fuel capacity, US gal.
3.4
4.4
Starting system
primary kick, folding crank
Electrical system
AC alternator, 12v, 240w
Lighting system
50/35w headlight
Battery
12v,5.5ah
Air filtration
dry paper
dry foam
drive train
Primary drive
helical gear
Clutch
wet, multi-plate
Transmission
6 speed, constant mesh
Final drive
#530 single row chain
1st gear
16.48:1
16.05:1
2nd gear
11.39:1
11.10:1
3rd gear
8.45:1
8.23:1
4th gear
6.4:1
6.76:1
5th gear
6.16:1
6.01:1
6th gear
5.69:1
5.55:1
running gear
Frame
tubular, double cradle
Forks
telescopic, internal springs
Rake
--
--
--
26.5º
27.5º
Trail
--
--
--
4.10 in.
4.30 in.
Steering damper
n/a
n/a
n/a
n/a
n/a
Rear shocks
five pos. adjustable
Front brakes
single disc, 10.5 in.
Rear brakes
single disc, 10.5 in.
Front tyre
3.25 x 18
Rear tyre
3.50 x 18
dimensions
Wheelbase
53.50 in.
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--
--
52.50 in.
Overall length
--
--
--
--
--
Handlebar width
29.00 in.
Seat height
33.00 in.
31.00 in.
Ground clearance
9.0 in.
6.10 in.
Weight
380 lbs. wet
372 lbs.
n/a = not applicable
-- = no info