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Honda Hondamatic 400 (CB400A), (CM400A) Motorcycles

1978 Hawk Hondamatic (CB400A’78)

Engine

Engine Air cooled, parallel twin cylinder, SOHC, 3 valve per cylinder
Displacement 395cc
Bore x Stroke 70.5 x 50.6mm
Compression Ratio 9.3:1
Fuel Delivery Two 32mm Keihin CV carburetors
Ignition CDI
Starter Electric
Max Power 26.8 HP @ 8000 rpm
Max Torque 21.39 lb-ft @ 5000 rpm

Drivetrain

Transmission 2-speed automatic with torque convertor
Final Drive Chain

CHASSIS / SUSPENSION / BRAKES

Front Suspension Telescoping forks
Rear Suspension Dual EVO dampers with 5-way spring preload adjustment.
Front Brakes Single 282mm disc
Rear Brakes 153mm Drum
Front Tires 3.60-S19
Rear Tires 4.10-S18

DIMENSION

Wet-Weight 177 kg (389 lb)
Fuel Capacity 13 Litres (3.4 Gal)

OTHER

Colors
  • Tahitian Red
  • Candy Sapphire Blue
  • The fuel tank and side cover stripes were black and orange
  • The “HONDAMATIC” decal was on the side cover
  • The left lever was not the clutch lever (because it was an automatic transmission); instead it was a parking brake lever
  • There was no tachometer; instead there were gear indicator lamps
  • The serial number began CB400A-2000025.

1979 CM400A’79 Hondamatic 400

Engine

N/A

Drivetrain

N/A

CHASSIS / SUSPENSION / BRAKES

N/A

DIMENSION

N/A

OTHER

  • Two colors were available: Candy Presto Red and Candy Holly Green
  • The pinstripes were orange and red
  • The speedometer had a 100 mph (160 kph) limit
  • The “CM400A” side cover decal was white and red
  • The engine was a 395cc 4-stroke OHC 3-valve parallel twin with two carburetors
  • The transmission was an automatic 2-speed with torque converter
  • The serial number began NC02-2000009.

1980 CM400A’80 Hondamatic 400

Engine

N/A

Drivetrain

N/A

CHASSIS / SUSPENSION / BRAKES

N/A

DIMENSION

N/A

OTHER

  • Two colors were available: Candy Presto Red and Candy Holly Green
  • The pinstripes on the red bike were bright red while on the green bike they were both dark green and light green
  • The speedometer had a 85 mph (135 kph) limit
  • The “CM400A” side cover decal was white and red
  • The engine was a 395cc 4-stroke OHC 3-valve parallel twin with two carburetors
  • The transmission was an automatic 2-speed with torque converter
  • The serial number began NC02-2100016.

1981 CM400A’81 Hondamatic 400

Engine

N/A

Drivetrain

N/A

CHASSIS / SUSPENSION / BRAKES

N/A

DIMENSION

N/A

OTHER

  • Two colors were available: Candy Bourgogne Red with Red Brown Metallic and Candy Sword Blue with Blue Gray Metallic
  • The pinstripes were gold
  • The speedometer had a 85 mph (135 kph) limit
  • The “CM400A” and “HONDA” emblems were gold
  • The engine was a 395cc 4-stroke OHC 3-valve parallel twin with two carburetors
  • The transmission was an automatic 2-speed with torque converter
  • The serial number began JH2NC02*7BM2000001.

Hondamatic 400 (CB400A), (CM400A) Photo Gallery