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Thread: !!!HELP -ATC 90/110 Valves

  1. #1
    jdparsons1's Avatar
    jdparsons1 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    !!!HELP -ATC 90/110 Valves

    Does anybody know if the valves on a 90 head are the same as on a 110? Im using the head off a 110 on my 90 engine but i need to know if i should switch out the valves.

  2. #2
    Join Date
    Aug 2002
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    691
    they are indeed the same valves according to partsfish. Both valves have these honda part numbers, these are taken off the 78 atc90 and the 79 atc110

    intake: 14711-028-000
    exhaust: 14721-028-790
    73 cr250m elsinore, 85 atc70, 85 250r flattracker, 87 250es bigred, 86 tecate, 2004 gas gas de300

  3. #3
    jdparsons1's Avatar
    jdparsons1 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Thanks!

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