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Thread: Engine serial number decoding??

  1. #1
    Join Date
    Oct 2002
    Location
    Northeast
    --
    17,460

    Engine serial number decoding??

    I found a topic on frame decoding but not engine serial numbers.

    I'm trying to find the exact year of an ATC70 motor TB "O" "0" E-3040242.

    I know all about the different shift patterns etc etc, I just ant to nail it down

    I tried the search but couldn't find what I needed....

    THANK YOU for any assistance
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  2. #2
    Join Date
    Jan 2007
    Location
    Merrillville,Indiana
    --
    129
    My clymer manual says 1984 TBO3E-2900001- on . All the earlier models are 28's and lower. 73 and 74 are 1000001- on and 1100001- on. Thats according to clymers now.

  3. #3
    Join Date
    Oct 2002
    Location
    Northeast
    --
    17,460
    Thanks bud, just trying to figure out if it's 84 or 85 now I guess.

    I'll just shift the bad boy before I split the case
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  4. #4
    Join Date
    Mar 2009
    Location
    Utah
    --
    203
    What about 110 serial numbers? are they the same?
    3 wheelers:
    '85 ATC 110 (its my first restoration!!)
    Saving up for a 250r later this year!

  5. #5
    Join Date
    Feb 2008
    Location
    NE Indiana
    --
    525
    The Honda ID Manual gives you engine number breakdowns just like the VIN. It's a pretty useful manual, and can be picked up for $25-$40.
    Attached Thumbnails Attached Thumbnails 2GMAS00AHt.jpg  

  6. #6
    Join Date
    Dec 2008
    Location
    Monroe MI
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    5,787
    Quote Originally Posted by somekidwithanm4 View Post
    What about 110 serial numbers? are they the same?
    The Honda frame and engine numbers are posted in the specs pages.

    http://www.3wheelerworld.com/spexhome.shtml

  7. #7
    Join Date
    Mar 2009
    Location
    Utah
    --
    203
    Ok thx a bunch
    3 wheelers:
    '85 ATC 110 (its my first restoration!!)
    Saving up for a 250r later this year!

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