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ATC90 70-73

ATC90 70-73

This section allows you to search for all parts relevant to Honda ATC90 70-73 models

ATC90 (US90), 1st generation introduced 1970, ends 1973, Features:

  • Model Code for 70-73 models "918"
  • 4 speed auto clutch transmission High & Low range sub transmission
  • 22x11x3.5 low pressure tyres, SPWAMULASS (Water,Mud,Land,Sand,Snow)
  • Tyre pressure 0.1 kg/cm2 (1.5 PSI )
  • Length 1570mm, width 970mm, Height 880mm, Weight 93.5kg
  • Engine Bore 50mm, Stoke 45.6mm, CR 7.5:1 Displacement 89.5cc
  • Carb Keihin 556A, main jet #65, slow #35
  • Engine number located below Hi-Lo range selector.
  • Frame number located on steering head stock left side
  • Engine Oil capacity1.0 ltr
  • Fuel tank capacity 6.5ltr. (5.5ltr main, 1.0ltr reserve)
  • Point gap 0.3 - 0.4 mm (12 to 16 thou)
  • Plug gap 0.6 - 0.7 mm (24 to 28 thou)
  • Plug NGK D8HS
  • Valve clearance (cold) 0.05mm


Brand: ATC Heaven
Reproduction wiring harness for ATC110 models. Got electrical gremlins, the wiring harness in your ATC is now over 40 years old, if you are doing maintenance or a restoration then you should definitely consider replacing the old harness.This quality Reproduction harness is made in Japan and features..
us$75.00
Brand: ATC Heaven
Axle nut spanner is great for removing large ATC axle nuts without damagehas 27mm and 42mm hex to suit most ATC models..
us$29.00
This is the fuel filter brass screen located behind the filter inspection cap.Suits ATC70 73-74, ATC90 all,Also suits CT70 72-76, CT90 69-75, ST90 73-75...
us$13.50
Brand: ATC Heaven
This is the recoil starter circle that secures the starter friction plateSuits ATC90 70-78, ATC110 79-85, ATC185/S 80-83, ATC200 81-83, ATC200E 82-83, ATC200S 84-86..
us$1.95
Brand: ATC Heaven
If your old footpeg rubbers are looking a bit sad, maybe its time you replaced them. nice reproduction of original but costs lessNote: can be used on 73-74 model ATC70s but not 100% correct fit...
us$14.00
Brand: ATC Heaven
This is the peep hole cover grommet fitted to all ATC90 modelsIt allows inspection of the chain tension and should always be fitted to exclude dirt and grit from the chain. Suits ATC90 70-78Original OE part number 40545-918-000..
us$9.80
Brand: ATC Heaven
This is the rubber tail light body for US90 models 70-73, can also be used on ATC70 models with optional tail-light.Suits ATC90/US90 70-73, ATC70 73-74..
us$27.00
Brand: ATC Heaven
Great new repro item,  get  this lens to replace your broken or missing lens. Suits ATC90/US90 70-73..
us$25.50
Brand: ATC Heaven
Here is a great item to repair or rebuild your existing wiring harness.Coloured cable comes in most popular styles, just pick your colour from drop down box. Cable is 13' long and rated at 14 amps, made in Japan just like your bike..
us$13.00
Brand: ATC Heaven
This is the Posi Torque Decal, gives intructions on operating the Posi Torque transmission. fitted to left side of fork bridge. Suits 74 to 78 models..
us$6.50
Brand: ATC Heaven
Here is a nice universal Ignition coil, It works with either points or CDI ignition system, Works on Honda, Yamaha, Suzuki and Kawasaki.You may need to fabricate a mount bracket but apart from that its plug and play...
us$45.00
Brand: ATC Heaven
This is a generic gas cap that has a gold zinc plate finish as opposed to the OE chrome plated versionThis cap will fit all model ATC70s as well as ATC90 and practically all model ATCs with the small chrome cap. Suits ATC70 73-85, ATC90 70-78Also suits CT90 72-78, P50 67-68, QA50 70-75...
us$12.00
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