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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



Front Cable Clip, ATC70 | ATC90 | ATC110 | ATC185/S
Hot Out Of Stock
Brand: ATC Heaven
This is the plastic cable clip used to bundle the throttle cable and ignition wire loom together. Correct for ATC70, ATC90, ATC110 or wherever two cables need to be fastened together. Suits ATC70 73-85, ATC90 all, ATC110 79-81, ATC185/S 80-81, ATC200 '81, Also suits CL70 70-73, CT70 69-73 & 79-8..
us$6.95
Front Axle Collar, ATC90 | ATC110 | ATC185/S | ATC200
Out Of Stock
Brand: ATC Heaven
Front axle collar. This item locates the front axle within the front forks. If this item is worn or missing damage can occur to your front forks and axle. Suits ATC90 70-78, ATC110 79-83, ATC185/S 80-82, ATC200 81-82, ATC200E '82. Sold Per Pair..
us$18.00
Brand: ATC Heaven
This is the "D" washer that goes under the circlip to hold the friction plate down on ATC pull starters. Does an important job in allowing the friction plate to correctly throw the starter pawls. Replace this with a standard washer and you are just looking for trouble. Suits ATC90 ATC110 ATC185/S AT..
us$2.95
Dip Stick, ATC90 | ATC110
Out Of Stock
Brand: ATC Heaven
This is a replacement dip stick for your worn or discoloured originalMake your restoration complete with the addition of this item. Suits ATC90 all, ATC110 79-80Also suits CT90 66-79, S90 64-69...
us$14.50
Brand: ATC Heaven
The drain plug washer is a service item and should be replaced at a regular intervalMade from soft aluminium its job is to compress and provide a seal between the drain plug flange and the crankcase. If this part is not replaced you risk stripping out the crankcase thread when overtightening the dra..
us$1.80
Brand: ATC Heaven
The Drain Plug is subject to damage from coming in to contact with solid objects and dubious mechanics. This drain plug is 12mm thread. Suits ATC70 73-85, ATC90 70-78, ATC110 79-85, ATC125M 84-87, ATC185S '83, ATC200 82-83, ATC200E 82-83, ATC200M 84-85, ATC200S 84-86, ATC200X 86-87, ATC250ES 85-87, ..
us$5.60
Brand: ATC Heaven
The chain tensioner access bolt washer should be replaced during service. Failure to replace this part could lead to oil leaks or dirt and grit entering the engine. If this part is not replaced you risk stripping out the crankcase thread when overtightening the tensioner bolt in an effort to stop oi..
us$3.95
Brand: ATC Heaven
The chain tensioner bolt is the bolt on the underside of the engine.Sometimes confused with the drain plug this bolt allows access to the cam chain tensioner. Although this bolt rarely wears out it is sometimes lost during disassembly and should be replaced with the correct item. Suits ATC70 73-85, ..
us$7.20
Coil Lead Clip, ATC90, see desc 4 more
Out Of Stock
Brand: ATC Heaven
This is the clip that secures the coil lead.Ensures that coil lead is retained and lessens the chance of lead becoming snagged on sticks and other hazards when riding. Suits ATC90 all Also suits C70M 70-71, CL90 67-69, CM91 66-69, CT90 66-68, S90 64-69, SL90 '69...
us$5.20
Cylinder Dowel, 10 x 14mm see description
Out Of Stock
Brand: ATC Heaven
The cylinder dowel is one part that will most often be damaged or destroyed when removedYou need a special dowel puller to remove this item but being such an expensive item most people usually opt for a pair of vice grips. The dowel serves an important function in holding the gasket in place and lin..
us$2.95
Brand: ATC Heaven
This is a 10x16mm dowel used in various locations in ATC models.Be sure to replace damaged or missing dowels as they serve an important function in locating gaskets and ensureing correct alignment of cases. Suits ATC70 all, ATC90 all, ATC125M all, ATC200ES all, ATC250ES/SX all, ATC250R all, ATC350X ..
us$2.95
Brand: ATC Heaven
This is the rubber cover fitted over the clutch adjusting nut on auto clutch ATC70-ATC125M models. Most often lost you can now replace it with this part. Just snaps in place over the securing washer. Note: Fits ATC70, ATC90, ATC110, ATC125M, most models..
us$14.30
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