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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



Inline Fuel Filter
New Hot
This clear inline fuel filter features a brass airstone type element rated at 75 micron, 50mm in length, 25mm diameter at largest point, takes 6mm fuel hose. Great item to keep rust scale and other elements out of your carb, just cut the fuel line and splice in...
$4.15
Oil Filter / Clutch Nut Spanner
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Brand: ATC Heaven
This tool is an invaluable aid for oil filter removal on bikes & ATVs, can also be used as a clutch nut removal tool on certain models.Works as a clutch nut on smaller models with automatic clutch and oil filter removal tool on larger models fitted with oil filter elements...
$19.50
Brand: ATC Heaven
If you are going to replace the front sprocket or service the electrics on your ATC90 or 110 you are going to need this puller, Don't risk damaging your expensive flywheel or stator. Get this tool and do the job right the first time. Suits ATC90 all, ATC110, points models only. Also suits KLT110 KLT..
$21.00
Brand: ATC Heaven
Clymer Workshop manual, covers models ATC and TRX 70-125 from 1970 to 1986. A good all round manual that covers a wide range of smaller displacement model ATCs. Suits ATC70, ATC90, ATC110, ATC125M to 85...
$59.00
Brand: ATC Heaven
Ignition tune up kit, Kit contains Points and Condenser. For Mitsubishi systems fitted to the following. Suits CT70H 70-73, XL70 74-76. Please note, image shown is not correct for this application...
$19.80
Brand: ATC Heaven
Ignition tune up kit, Kit contains Points and Condenser. For Kokusan systems fitted to the following. Suits CT90 66-75, CM91 '69. Please note, image shown is not correct for this application...
$19.80
Brand: ATC Heaven
Ignition tune up kit, Kit contains Points and Condenser. For Nippon Denso systems fitted to the following. Suits S90 64-69. Please note, image shown is not correct for this application...
$19.80
Brand: ATC Heaven
Ignition tune up kit, Kit contains Points and Condenser. For Kokusan systems fitted to the following. Suits S90 64-69, CL90 67-69. Please note, image shown is not correct for this application...
$19.80
Brand: ATC Heaven
Get this universal headlight switch to replace your old broken switch or where retrofitting lights. This is a reproduction of switches fitted to Yamaha WR models but will work on just about any application. Some soldering and wiring knowledge required...
$48.00
Brand: ATC Heaven
Replacement Head Light Lens for your old cracked or pitted lens. Suits ATC70 73-74 (with lighting option), US90 71(with lighting option), ATC90 73-78, ATC110 79-80. Also suits Honda Z50 72-78, MR175 76-77...
$23.80
Brand: ATC Heaven
Round Terminal set, comes complete with plastic sheath. Just like the original, kit contains 5 round terminals 6mm id and silcone sheaths...
$6.95
Brand: ATC Heaven
Round Terminal set, comes complete with plastic sheath. Just like the original, kit contains 5 round terminals 8mm id and silcone sheaths...
$6.95
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