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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



Brake Return Spring, ATC70 | ATC90 | ATC110 | ATC185/S | ATC200/E/ES/M/S | ATC250ES/SX
Out Of Stock
The brake return spring can often become fatigued or weakened during normal service, and also when removed for brake shoe replacement. Consider replacing these springs as part of normal maintenance since they play a vital role in ensuring brake shoes are fully disengaged after use. Suits ATC70 all, ..
us$5.50
Get this new upper bar holder and make your ATC like new againWhy bother spending hours polishing your old ones when you can just buy these brand new OE Honda items. Fit and forget. Suits ATC70 73-82, ATC90 73-78, ATC110 79-82, ATC 185 80-82, ATC200 81-82Also suits CA110 62-69, CL70 69-73, CT70 79-8..
us$9.50
Lower Bar holder, use this item in conjunction with the upper bar holder "BHU-937-73" fastens handlebars to fork top plate. Suits ATC70 73-82, ATC90 74-78, ATC110 79-82, ATC185/S 80-82, ATC200 81-82, ATC200E '82Also suits CL70 69-73, CT70 79-82, CL90 67-69, CT90 '69, XL70 74-76, XR70R 97-03, Z50R '7..
us$14.50
This item works in conjunction with the Brake Arm Joint. It is often lost or misplaced and can become siezed making brake adjustment difficult if not impossible. If you don't need one straight away, we suggest you grab one anyway and throw it in your toolbox for later use. Note: suits most model ATC..
us$2.40
This is an often lost or misplaced part that suits many different model ATCs with drum brakes. It is located on the brake arm and serves to pivot when the brake is actuated to allow the brake arm to work correctly. Without this item the brakes make stick on or just fail to work. Suits ATC90 73-98, A..
us$2.50
Here is an aftermarket amber reflector. Fine if you are not too worried about originality and much less expensive the OE. Has black plastic backing and reflector section measures 55mm...
us$6.00
Axle Nut Rear, ATC70, see desc' for others
Hot Out Of Stock
Rear axle nut 14mm. The axle nut is subject to abuse and damage and should be replaced as required.Hex type castle nut suits ATC70 models from 78-85. Also suits ATC70 73-74 front and rear. ATC90 73-78, ATC110 79-85, ATC125M 84-85, ATC185/S 80-83, ATC200 81-83, ATC200E 82-83, ATC200M 84-85, ATC200S 8..
us$2.50
Rustol Tank Cleaner
Out Of Stock
If your tank has no leaks but does have some rust internally then this product is for you. Rustol could be the greatest thing since sliced bread, however it doesn't go well in your toaster. Just rinse out your tank, dilute Rustol with water and add to your tank. Wait specified time and remove. Rusto..
us$65.00
Got an ATC90 or early ATC110 with a rusted or dented fuel tank. If originality is not important to you and you just want to get going again then one of these plastic replacements is the go. Manufactured from quality fuel grade plastic these tanks will replace your existing unit perfectly.Suits ATC90..
us$250.00
This is the primary fuel hose used in ATC70, ATC90, ATC110 and ATC125M models, 5.5mm ID. Whether you are doing a restoration or just want quality fuel hose this is it. OE Honda, same as originally fitted to your ATC. Sold in 300mm lengths..
us$5.80
Maybe you only need the float bowl gasket and not the complete set. Here is the answer, we sell the float bowl gasket on its own just to get you out of trouble. Suits ATC70 73-74, ATC90 70-78Also suits CT70 69-77, CT90 69-77, ST90 73-75..
us$6.50
This quality kit contains all the parts required to rebuild your ATC90 Carb. Includes "O"Rings, Idle screw, main jet, slow jet, needle seat, circlip and tension springs. Suits ATC90 70-78Note: Suits carb model 556A..
us$31.35
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