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ATC90 74-78

ATC90 74-78

This section allows you to search for all parts relevant to Honda ATC90 74-78 models


ATC90 , 2nd generation introduced 1974, ends 1978, Features:


  • Model Code for 74-78 models "942 "
  • 4 speed auto clutch transmission High & Low range sub transmission
  • 22x11x3.5 low pressure tyres, (1974) 22x11x8 split rim (1975~)
  • Tyre pressure 0.1 kg/cm2 (1.5 PSI ) 1973. 0.15kg/cm2 (2.2PSI) 1974~
  • 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 and 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



Headlight Switch Mount ATC90
Out Of Stock
Headlight Switch Mount. This part is mounted in the top of the ATC headlight and locates the headlight switch. Part is moulded from a NOS part so will replace your old rotted or missing mount rubber perfectly.Suits ATC90 70-78..
us$10.00
Fender Release Rod ATC90
In Stock
Brand: ATC Heaven
This is a small and often forgotten item but it performs an important job in locking the rear fender down to the frame. This reproduced rod is an exact copy of the original. the rod thickness is correct so it fits properly within the frame. It has the correct factory crimps to keep it in place and s..
us$15.00
Brand: ATC Heaven
Got worn or missing footpeg rubbers on your ATC90 or early ATC110?, Worn rubbers are ugly, unsafe and not what you want for your resto project. Up to now it was either find a good used ones or try or just put up with the originals. Now you have a better choice.We had these remade from a NOS sample. ..
us$26.00
Brand: ATC Heaven
Who would have thought such a small item can cause so much trouble. A couple of things that lead to the demise of this part is firstly, shearing off in service, and secondly, dissapearing into thin air once the flywheel is removed. If you don't need one now, chances are you will sometime in the futu..
us$5.95
Front tank mount rubber, be sure to replace this rubber when worn as it can lead to expensive fuel tank damage if left unchecked. Suits ATC90 70-78, ATC110 79-85, ATC125M 84-85Also suits SL70 71-73, XL70 74-76, XR75 73-78...
us$9.20
Brand: ATC Heaven
Dont put up with that damaged tappet cap any longer, it really detracts from the look of the engine, just get this OE Honda cap and you engine will thank you. Suits ATC90 70-78, ATC110 79-85, ATC125M 84-85Also suits CL90 67-69, CM91 66-69, CT90 66-79, S90 64-69, SL90 '69, ST90 73-75...
us$12.40
Brand: ATC Heaven
This is the step washer that goes between the bolt and plastic fender which locates the plastic. Often lost or rusted this item plays an important role in allowing the mount bolt to be tightened down without damaging the plastic. Replace these washers when needed to avoid damage to expensive fenders..
us$3.90
Brand: ATC Heaven
This is the set spring fitted to various ATC pull starters. Without this item the starter ratchets may not return properly and cause damage to the pull starter and starter cage. Suits ATC90 70-78, ATC110 79-85, ATC185/S 80-83, ATC200 81-83, ATC200E 82-83 ATC200S 84-85. sold per set of 3.DOES NOT SUI..
us$5.95
Brand: ATC Heaven
This is the starter ratchet fitted to the ATC90 starters although will fit most model ATCs with pull starter. These items rarely wear out but somehow seem to dissapear for no real reason. If you are having problems with these jumping out of the starter spool check to see if you spool ramps are worn ..
us$6.50
Brand: ATC Heaven
Rear Fender to Frame mount rubber, This part plays an important role in securing and aligning the rear fender to the frameIf this part is worn or missing damage can occur to fender and or frame. Suits ATC90 70-78, ATC110 79-85, ATC125M 84-85...
us$20.00
Brand: ATC Heaven
This is the steering head nut that fastens the front forks in to the frame. Regular maintenance calls for the steering head bearings to be lubricated and this item should be replaced at the same time if corroded or damaged. Correct for 78-85 model ATC70 but also can be used on 73-74. Suits ATC70 78-..
us$15.30
Brand: ATC Heaven
Need an new starter handle for your ATC but don't need OE pricing, this is it. Get this reproduction starter handle and get started. suits ATC70 all, ATC90 all (not US90 model) and ATC110 79-82.Note, item is similar to image shown but not exact...
us$14.95
Showing 37 to 48 of 156 (13 Pages)