Honda Service Repair Manuals


1965-66 CB450K0

  • ENGINE
    • Engine: Air cooled, parallel twin cylinder, four stroke, DOHC, 2 valves per cylinder,
    • Displacement: 445cc (27 cu. in.)
    • Bore and Stroke: 70 x 57.8 mm
    • Compression Ratio: 9.0:1
    • Fuel Delivery: Dual CV Carburetors
    • Ignition: Points and condenser
    • Starting: N/A
    • Max Power: 45 hp @ 9000 rpm
    • Max Torque: 4 kg-m @ 7000 rpm
  • DRIVETRAIN
    • Transmission: 4-speed
    • Final drive: Chain
  • CHASSIS / SUSPENSION / BRAKES
    • Front Suspension: Telescoping forks
    • Rear Suspension: Adjustable shocks
    • Front Brakes: Drum
    • Rear Brakes: Drum
    • Front Tire: 3.25-18
    • Rear Tire: 3.50-18
  • DIMENSION
    • Dry-Weight: N/A
    • Fuel Capacity: 14 Litres (3.7 Gal)
  • OTHER
    • Color: Black with Silver
    • The gas tank, upper forks, and headlight shell were black
    • The side covers and fenders were silver
    • The gas tank had chrome panels with black rubber knee pads
    • The instruments were in the headlight housing
    • The serial number began CB450-1000001
1965 CB450K0
1966 CB450K0
1966 CB450K0
1966 CB450K0
Click image to enlarge
1965 CB450K0
1965 CB450K0
1965 CB450K0
1965 CB450K0

1967 CB450K1

  • ENGINE
    • Engine: Air cooled, parallel twin cylinder, four stroke, DOHC, 2 valves per cylinder,
    • Displacement: 445cc (27 cu. in.)
    • Bore and Stroke: 70 x 57.8 mm
    • Compression Ratio: 9.0:1
    • Fuel Delivery: Dual CV Carburetors
    • Ignition: Points and condenser
    • Starting: N/A
    • Max Power: 45 hp @ 9000 rpm
    • Max Torque: 4 kg-m @ 7000 rpm
  • DRIVETRAIN
    • Transmission: 5-speed
    • Final drive: Chain
  • CHASSIS / SUSPENSION / BRAKES
    • Front Suspension: Telescoping forks
    • Rear Suspension: Adjustable shocks
    • Front Brakes: Drum
    • Rear Brakes: Drum
    • Front Tire: 3.25-18
    • Rear Tire: 3.50-18
  • DIMENSION
    • Dry-Weight: N/A
    • Fuel Capacity: 14 Litres (3.7 Gal)
  • OTHER
    • Top Speed: 171 km/h (106 mph)
    • The serial number began CB450-2000001
1967 CB450
1967 CB450

1968 CB450K1

  • ENGINE
    • Engine: Air cooled, parallel twin cylinder, four stroke, DOHC, 2 valves per cylinder,
    • Displacement: 445cc (27 cu. in.)
    • Bore and Stroke: 70 x 57.8 mm
    • Compression Ratio: 9.0:1
    • Fuel Delivery: Dual CV Carburetors
    • Ignition: Points and condenser
    • Starting: N/A
    • Max Power: 45 hp @ 9000 rpm
    • Max Torque: 4 kg-m @ 7000 rpm
  • DRIVETRAIN
    • Transmission: 5-speed
    • Final drive: Chain
  • CHASSIS / SUSPENSION / BRAKES
    • Front Suspension: Telescoping forks
    • Rear Suspension: Adjustable shocks
    • Front Brakes: Drum
    • Rear Brakes: Drum
    • Front Tire: 3.25-18
    • Rear Tire: 3.50-18
  • DIMENSION
    • Dry-Weight: N/A
    • Fuel Capacity: 14 Litres (3.7 Gal)
    • Top Speed: 171 km/h (106 mph)
  • OTHER
    • Colors:
      • Candy Red
      • Candy Blue Green
    • The gas tank and side covers were the basic color (i.e., red or blue-green)
    • The gas tank stripe and side cover emblems were gold
    • The seat surface was pleated
    • The taillight lens had a rectangular shape
    • The gas tank badge "HONDA" was metal
    • The upper forks and headlight shell were black
    • There was an independent speedometer, tachometer, and headlight unit
    • The fenders were chrome
    • The serial number began CB450-3000001.
1968 CB450K1
1968 CB450K1
Click image to enlarge
1968 CB450K1
1968 CB450K1

1969 CB450K2

  • ENGINE
    • Engine: Air cooled, parallel twin cylinder, four stroke, DOHC, 2 valves per cylinder,
    • Displacement: 445cc (27 cu. in.)
    • Bore and Stroke: 70 x 57.8 mm
    • Compression Ratio: 9.0:1
    • Fuel Delivery: Dual CV Carburetors
    • Ignition: Points and condenser
    • Starting: N/A
    • Max Power: 45 hp @ 9000 rpm
    • Max Torque: 4 kg-m @ 7000 rpm
  • DRIVETRAIN
    • Transmission: 5-speed
    • Final drive: Chain
  • CHASSIS / SUSPENSION / BRAKES
    • Front Suspension: Telescoping forks
    • Rear Suspension: Adjustable shocks
    • Front Brakes: Drum
    • Rear Brakes: Drum
    • Front Tire: 3.25-18
    • Rear Tire: 3.50-18
  • DIMENSION
    • Dry-Weight: N/A
    • Fuel Capacity: 14 Litres (3.7 Gal)
    • Top Speed: 171 km/h (106 mph)
  • OTHER
    • Colors:
      • Candy Red
      • Candy Blue Green
    • The headlight shell, upper fork covers, gas tank, and side covers were the basic color (i.e., red or blue-green)
    • There was an independent speedometer, tachometer, and headlight unit
    • The gas tank badge "HONDA" was metal
    • The fenders were chrome
    • The engine was a 444cc DOHC parallel twin with dual CV carburetors
    • The transmission was a 5-speed
    • The serial number began CB450-3008956.
1969 CB450K2
1969 CB450K2

1970 CB450K3

  • ENGINE
    • Engine: Air cooled, parallel twin cylinder, four stroke, DOHC
    • Valving: 2 valves per cylinder
    • Displacement: 445cc (27 cu. in.)
    • Bore and Stroke: 70.0 x 57.8 mm
    • Compression Ratio: 9.0:1
    • Fuel Delivery: Dual CV Carburetors
    • Ignition: Breaker points and condenser
    • Starter: Electric and kickstart
    • Max Power: 45 CV @ 9000 rpm
    • Max Torque: 4 kg-m @ 7000 rpm
  • DRIVETRAIN
    • Transmission: 5-speed
    • Final drive: Chain
  • CHASSIS / SUSPENSION / BRAKES
    • Front Suspension: Telescoping forks
    • Rear Suspension: Adjustable shocks
    • Front Brakes: Single disc
    • Rear Brakes: Drum
    • Front Tire: 3.25-18
    • Rear Tire: 3.50-18
  • DIMENSION
    • Dry-Weight: N/A
    • Fuel Capacity: 14 Litres (3.7 Gal)
  • OTHER
    • Colors:
      • Candy Blue Green
      • Candy Ruby Red
      • Candy Gold
    • The headlight shell, upper forks, gas tank, and side covers were the basic color (i.e., red, blue, or gold)
    • The gas tank badge "HONDA" was metal
    • There was an independent speedometer, tachometer, and headlight unit
    • The fenders were chrome
    • The front braking system used a hydraulic disc
    • The fork boots were black rubber
    • The mufflers were megaphone-shaped
    • The serial number began CB450-4000001.
1970 CB450K3
1970 CB450K3
Click image to enlarge
1970 CB450K3
1970 CB450K3
Click image to enlarge

1971 CB450K4

  • ENGINE
    • Engine: Air cooled, parallel twin cylinder, four stroke, DOHC
    • Valving: 2 valves per cylinder
    • Displacement: 445cc (27 cu. in.)
    • Bore and Stroke: 70.0 x 57.8 mm
    • Compression Ratio: 9.0:1
    • Fuel Delivery: Dual CV Carburetors
    • Ignition: Breaker points and condenser
    • Starter: Electric and kickstart
    • Max Power: 45 CV @ 9000 rpm
    • Max Torque: 4 kg-m @ 7000 rpm
  • DRIVETRAIN
    • Transmission: 5-speed
    • Final drive: Chain
  • CHASSIS / SUSPENSION / BRAKES
    • Front Suspension: Telescoping forks
    • Rear Suspension: Adjustable shocks
    • Front Brakes: Single disc
    • Rear Brakes: Drum
    • Front Tire: 3.25-18
    • Rear Tire: 3.50-18
  • DIMENSION
    • Dry-Weight: N/A
    • Fuel Capacity: 14 Litres (3.7 Gal)
  • OTHER
    • Colors:
      • Polynesian Blue Metallic
      • Candy Ruby Red
      • Candy Gold
      • Valley Green Metallic
    • The gas tank, headlight shell, upper forks, and side covers were the basic color (i.e., red, gold, or green)
    • The gas tank badge "HONDA" was metal
    • The side cover emblem reads "DOUBLE OVERHEAD CAM 450"
    • The seat changed shape and pleating design
    • There was an independent speedometer, tachometer, and headlight unit
    • The front braking system used a hydraulic disc
    • The fork boots were black rubber
    • The fenders were chrome
    • The mufflers were megaphone-shaped
    • The serial number began CB450-4100001.
1971 CB450K4
1971 CB450K4
Click image to enlarge
1971 CB450K4
1971 CB450K4
1971 CB450K4
1971 CB450K4

1972 CB450K5

  • ENGINE
    • Engine: Air cooled, parallel twin cylinder, four stroke, SOHC, 3 valves per cylinder, 360 crankshaft and twin balance-shafts
    • Displacement: 445cc (27 cu in)
    • Bore and Stroke: 70 x 57.8 mm
    • Compression Ratio: 9.0:1
    • Fuel Delivery: Two 32mm Keihin Carburetors
    • Ignition: Breaker points and condenser
    • Starter: Electrick and kickstart
    • Max Power: 41 hp 30 KW @ 8500 rpm
  • DRIVETRAIN
    • Transmission: 5-speed
    • Final drive: Chain
  • CHASSIS / SUSPENSION / BRAKES
    • Front Suspension: Telescoping forks
    • Rear Suspension: Adjustable shocks
    • Front Brakes: Single disc
    • Rear Brakes: Drum
    • Front Tire: 3.25-18
    • Rear Tire: 3.50-18
  • DIMENSION
    • Dry-Weight: N/A
    • Fuel Capacity: 14 Litres (3.7 Gal)
  • OTHER
    • Colors:
      • Candy Garnet Brown
      • Light Ruby Red
      • Candy Bacchus Olive
    • The gas tank and side covers were the basic color (i.e., red, brown, or olive)
    • The gas tank badge "HONDA" was metal
    • The gas tank stripe was gold
    • The upper fork were chrome
    • The headlight shell was black
    • There was a chrome strip on the base of the gas tank
    • The side cover emblem reads "DOUBLE OVERHEAD CAM 450"
    • The front braking system used a hydraulic disc
    • The fork boots were black rubber
    • There was an independent speedometer, tachometer, and headlight unit
    • The fenders were chrome
    • The mufflers were megaphone-shaped
    • The serial number began CB450-5000001.
1972 CB450K5
1972 CB450K5

1973 CB450K6

  • ENGINE
    • Engine: Air cooled, parallel twin cylinder, four stroke, SOHC, 3 valves per cylinder, 360 crankshaft and twin balance-shafts
    • Displacement: 445cc (27 cu in)
    • Bore and Stroke: 70 x 57.8 mm
    • Compression Ratio: 9.0:1
    • Fuel Delivery: Two 32mm Keihin Carburetors
    • Ignition: Breaker points and condenser
    • Starter: Electrick and kickstart
    • Max Power: 41 hp 30 KW @ 8500 rpm
  • DRIVETRAIN
    • Transmission: 5-speed
    • Final drive: Chain
  • CHASSIS / SUSPENSION / BRAKES
    • Front Suspension: Telescoping forks
    • Rear Suspension: Adjustable shocks
    • Front Brakes: Single disc
    • Rear Brakes: Drum
    • Front Tire: 3.25-18
    • Rear Tire: 3.50-18
  • DIMENSION
    • Dry-Weight: N/A
    • Fuel Capacity: 14 Litres (3.7 Gal)
  • OTHER
    • Colors:
      • Brier Brown Metallic
      • Tyrolean Green Metallic
    • The gas tank and side covers were the basic color (i.e., brown or green)
    • The gas tank badge "HONDA" was metal
    • The gas tank stripes were gold and black
    • The "450 DOHC" side cover emblem was white and yellow
    • The upper forks and headlight shell were black
    • There was a chrome grip pipe behind the seat
    • The front braking system used a hydraulic disc
    • The fork boots were black rubber
    • There was an independent speedometer, tachometer, and headlight unit
    • The instruments were tilted toward the rider
    • There was an independent light housing added between the speedometer and tachometer
    • The fenders were chrome
    • The mufflers were megaphone-shaped
    • The serial number began CB450-6000001.
1973 CB450K6
1973 CB450K6

1974 CB450K7

  • ENGINE
    • Engine: Air cooled, parallel twin cylinder, four stroke, SOHC, 3 valves per cylinder, 360 crankshaft and twin balance-shafts
    • Displacement: 445cc (27 cu in)
    • Bore and Stroke: 70 x 57.8 mm
    • Compression Ratio: 9.0:1
    • Fuel Delivery: Two 32mm Keihin Carburetors
    • Ignition: Breaker points and condenser
    • Starter: Electrick and kickstart
    • Max Power: 41 hp 30 KW @ 8500 rpm
  • DRIVETRAIN
    • Transmission: 5-speed
    • Final drive: Chain
  • CHASSIS / SUSPENSION / BRAKES
    • Front Suspension: Telescoping forks
    • Rear Suspension: Adjustable shocks
    • Front Brakes: Single disc
    • Rear Brakes: Drum
    • Front Tire: 3.25-18
    • Rear Tire: 3.50-18
  • DIMENSION
    • Dry-Weight: N/A
    • Fuel Capacity: 14 Litres (3.7 Gal)
  • OTHER
    • Colors:
      • Candy Orange
      • Maxim Brown Metallic
    • The gas tank and side covers were the basic color (i.e., brown or orange)
    • The gas tank badge "HONDA" was metal
    • The gas tank stripes were gold and black
    • The "450 DOHC" side cover emblem was white and red
    • The upper forks and headlight shell were black
    • There was a chrome grip pipe behind the seat
    • The front braking system used a hydraulic disc
    • The fork boots were black rubber
    • There was an independent speedometer, tachometer, and headlight unit
    • The instruments were tilted toward the rider
    • There was an independent light housing added between the speedometer and tachometer
    • The fenders were chrome
    • The mufflers were megaphone-shaped
    • The engine was a 444cc DOHC parallel twin with dual CV carburetors
    • The transmission was a 5-speed
    • The serial number began CB450-7000001.
1974 CB450K7
1974 CB450K7
1974 CB450K7
1974 CB450K7



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