Honda Service Repair Manuals


1970-71 Honda C70M (also called C70MK0 or CM70)

  • ENGINE
    • Engine: 72cc OHC single cylinder
    • Spark plug: C6HSA
    • Plug gap: .028
    • Starter: electric start
    • Battery: 6YB11-2D or 6N11-2D
  • DRIVETRAIN
    • Transmission: 3-speed with an automatic clutch
  • CHASSIS / SUSPENSION / BRAKES
    • N/A
  • DIMENSION
    • N/A
  • OTHER
    • Like the early cub, this model did not significantly look any different
    • Colors:
      • Aquarius blue
      • Bright red
      • Pine green
    • Leg guard/cowling: white
    • Fuel tank emblem read "HONDA 70"
    • Seat: long (for two riders)
    • Rear footpegs: standard
    • Tail light: large tail light common to other Hondas of the '70s
    • Serial number began: C70M-017962
1970-71 Honda Cub 70 (C70)
1970-71 Honda Cub 70 (C70)
1970-71 Honda Cub 70 (C70)
1970-71 Honda Cub 70 (C70)
1970-71 Honda Cub 70 (C70)
1970-71 Honda Cub 70 (C70)

1972-73 Honda C70K1 (also called C70MK1)

  • ENGINE
    • Engine: 72cc OHC single cylinder
    • Spark plug: C6HSA
    • Plug gap: .028
    • Starter: electric start
    • Battery: 6YB11-2D or 6N11-2D
  • DRIVETRAIN
    • Transmission: 3-speed with an automatic clutch
  • CHASSIS / SUSPENSION / BRAKES
    • N/A
  • DIMENSION
    • N/A
  • OTHER
    • Like the early cub, this model did not significantly look any different
    • Colors:
      • Strato Blue Metallic
      • Poppy Yellow Metallic
    • Leg guard/cowling: White
    • Fuel tank emblem read "HONDA 70"
    • Seat: short
    • Accessory: luggage rack over the rear wheel
    • Tail light: large tail light common to other Hondas of the '70s
    • Serial number began: C70-2000000
1972 Honda C70K1 Cub 70
1972 Honda C70K1 Cub 70

1980 Honda C70 Passport

  • ENGINE
    • Engine: 72cc OHC single cylinder
    • Ignition: breaker points
    • Spark plug: C7HSA
    • Plug gap: .028
    • Starter: electric start
    • Electrical: six-volt system like the previous models
    • Battery: 6YB11-2D or 6N11-2D
  • DRIVETRAIN
    • Transmission: 3-speed with an automatic clutch
  • CHASSIS / SUSPENSION / BRAKES
    • N/A
  • DIMENSION
    • N/A
  • OTHER
    • Similar shape to the early cub
    • Colors:
      • Parakeet Yellow
      • Angel Blue
    • Leg guard/cowling: White
    • On the yellow bike, the long seat was brown and white
    • On the blue model the long seat was black and white
    • Accessory: Basket and rack were mounted above the front fender and a short luggage rack was mounted behind the seat
    • A "HONDA C70" logo appeared on the fuel tank
    • Serial number began: DA01-1000014
1980 Honda C70
1980 Honda C70

1981 Honda C70 Passport

  • ENGINE
    • Engine: 72cc OHC single cylinder
    • Ignition: breaker points
    • Spark plug: C7HSA
    • Plug gap: .028
    • Starter: electric start
    • Electrical: six-volt system like the previous models
    • Battery: 6YB11-2D or 6N11-2D
  • DRIVETRAIN
    • Transmission: 3-speed with an automatic clutch
  • CHASSIS / SUSPENSION / BRAKES
    • N/A
  • DIMENSION
    • N/A
  • OTHER
    • Like the 1980 model with only a few exceptions
    • The VIN had the 17 digits which indicated the country (first character), manufacturer (second character), year (10th character), and factory (11th character)
    • Example: JH2DA0107BS100001
      • J=Japan
      • H=Honda
      • B=1981
      • S=Suzuka factory
    • Colors:
      • Parakeet Yellow
      • Angel Blue
      • Monza Red
    • Long seat: black and white
    • Leg guard/cowling: white
    • Cowling now had another cutout next to the cylinder head
    • Accessory: basket and rack were mounted above the front fender and a short luggage rack was mounted behind the seat
    • "PASSPORT" logo appeared on the fuel tank
    • Serial number began JH2DA0106BS100003
1981 Honda C70 Passport
1981 Honda C70 Passport

1982 Honda C70 Passport

  • ENGINE
    • Engine: 72cc OHC single cylinder
    • Ignition: CD ignition instead of breaker points
    • Spark plug: CR7HS
    • Plug gap: .028
    • Starter: electric start
    • It now had a 12-volt system unlike the previous models
    • Battery: YB5L-B
  • DRIVETRAIN
    • Transmission: 3-speed with an automatic clutch
  • CHASSIS / SUSPENSION / BRAKES
    • N/A
  • DIMENSION
    • N/A
  • OTHER
    • Like the 1981 model with only a few exceptions
    • The VIN had the 17 digits which indicated the country, manufacturer, year, and factory
    • Example: JH2DA0107CS200001
      • J=Japan
      • H=Honda
      • C=1982
      • S=Suzuka factory
    • Colors:
      • Angel Blue
      • Monza Red
    • Leg guard/cowling: white (redesigned slightly)
    • Side covers: redesigned slightly
    • Long seat: black and white
    • Accessory: basket and rack were mounted above the front fender and a short luggage rack was mounted behind the seat
    • "PASSPORT" logo appeared on the fuel tank
1982 Honda C70 Passport
1982 Honda C70 Passport
1982 Honda C70 Passport
1982 Honda C70 Passport

1983 Honda C70 Passport

  • ENGINE
    • Engine: 72cc, OHC, four-stroke, single cylinder
    • Bore & Stroke: 47x41.4mm
    • Compression ratio: 8.8:1
    • Spark plug: CR7HS
    • Plug gap: .028
    • Fuel Delivery: 14mm piston valve type
    • Gas type: Regular
    • Starter: Electric and kick
    • Ignition: CDI with flywheel magneto
    • Exhaust: single muffler
    • Electrics: 12-volt system
    • Battery: YB5L-B
  • DRIVETRAIN
    • Transmission: Three-speed constant mesh
    • Clutch: Wet multi-plate automatic centrifugal
    • Drive: Fully-enclosed drive chain reduces maintenance
    • Wheels: Wire spoke type
  • CHASSIS / SUSPENSION / BRAKES
    • Brakes: Front and rear drum
    • Front Suspension: Bottom link type
    • Rear Suspension: Swing arm
    • Front Tire Size: 2.25-17
    • Rear Tire Size: 2.50-17
  • DIMENSION
    • Wheelbase: 1181mm (46.5 in.)
    • Overall length: 1800mm (46.5 in.)
    • Overall width: 660mm (26 in.)
    • Seat height: 760mm (29.9 in.)
    • Dry weight: 82 kg (180.8 lb)
    • Fuel capacity: 4 liter (1.1 US gal.) (0.88 Imp. gal.)
  • OTHER
    • Like the 1982 model with only a few exceptions
    • VIN had the 17 digits which indicated the country, manufacturer, year, and factory
    • Serial number began: JH2DA0107DS300004 where D indicates 1983
    • Colors:
      • Shuttle Blue Metallic
      • Special Silver Metallic
      • Monza Red
    • Leg guard/cowling: white
    • Long seat: black and white
    • Accessory: basket and rack mounted above the front fender and a short luggage rack mounted behind the seat
    • The word "HONDA" was on the fuel tank and the word "PASSPORT" was on the side cover
    • The cowling eliminated the open cutouts of the previous years and installed pop-in covers in their place
    • The rear shocks were chromed and were longer
1983Honda Cub 70 Passport
1983 Honda Cub 70 Passport
Click image to enlarge

1984 Honda C70 Passport

  • ENGINE
    • Engine type: OHC, four-stroke, single cylinder
    • Displacement: 72cc
    • Bore & Stroke: 47 x 41.4mm
    • Spark plug: CR7HS
    • Plug gap: .028
    • Compression Ratio: 8.8:1
    • Fuel Delivery: 14mm piston-valve type
    • Ignition system: Flywheel magneto
    • Starter: Electric and kick
    • Battery: YB5L-B
  • DRIVETRAIN
    • Transmission: Three-speed constant mesh
    • Clutch: Wet multi-plate automatic clutch
    • Drive: Fully-enclosed drive chain
    • Wheels: wire spoke
  • CHASSIS / SUSPENSION / BRAKES
    • Brakes: Front and Rear Drum
    • Front suspension: Bottom-link type
    • Rear suspension: Swing arm
    • Front tire: 2.25-17
    • Rear tire: 2.50-17
  • DIMENSION
    • Wheelbase: 1180mm (46.5 in.)
    • Seat height: 760mm (29.9 in.)
    • Fuel capacity: 4 liter (1.1 gal.)
    • Dry weight: 82 kg (180.8 lb)
    • Overall length: 1800mm (70.9 in.)
    • Overall width: 660mm (26 in.)
    • Fuel capacity: 4 liters (1.1 US Gal) (0.88 Imp. Gal.)
  • OTHER
    • Like the 1982 model with only a few exceptions
    • Serial number began JH2DA0107ES300004 (E=1984)
    • Accessories: Standard front basket and rear carrying rack
    • Colors:
      • Special Silver Metallic
      • Shuttle Blue Metallic
1984 Honda Cub 70 Passport
1984 Honda Cub 70 Passport
Click image to enlarge



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