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Thread: Honda Engine Serial Numbers

  1. #1
    Join Date
    Dec 2008
    Location
    Monroe MI
    --
    5,787

    Honda Engine Serial Numbers

    1000001~ = 1973 atc70
    1100001~ = 1974 atc70
    atc110e-2000007~ = 1979 atc110
    atc70e-2000007~ = 1978 atc70
    atc70e-2100001~ = 1979 atc70
    atc90e-1300001~ = 1974 atc90
    atc90e-1400001~ = 1975 atc90
    atc90e-1500001~ = 1976 atc90
    atc90e-1600001~ = 1977 atc90
    atc90e-1700001~ = 1978 atc90
    tb01e-2000013~ = 1980 atc185
    tb01e-2100001~ = 1981 atc185s
    tb01e-2200001~ = 1982 atc185s
    tb01e-3000008~ = 1983 atc185s
    tb02e-2000001~ = 1980 atc110
    tb02e-2200001~ = 1981 atc110
    tb02e-2300003~ = 1982 atc110
    tb02e-2500005~ = 1983 atc110
    tb02e-2600001~ = 1984 atc110
    tb02e-2700001~ = 1985 atc110
    tb03e-2000001~ = 1980 atc70
    tb03e-2600001~ = 1981 atc70
    tb03e-2700003~ = 1982 atc70
    tb03e-2800001~ = 1983 atc70
    tb03e-2900001~ = 1984 atc70
    tb03e-3000001~ = 1985 atc70
    tb05e-2000001~ = 1981 atc200
    tb05e-2100001~ = 1982 atc200
    tb05e-2200001~ = 1983 atc200
    tb05e-2300001~ = 1984 atc200s
    tb05e-2500001~ = 1985 atc200s
    tb05e-2537514~ = 1986 atc200s
    tb05e-5000022~ = 1982 atc200e
    tb05e-5100001~ = 1983 atc200e
    tb05e-5300004~ = 1984 atc200m
    tb05e-5400001~ = 1985 atc200m
    tb05e-6000001~ = 1984 atc200es
    tb05e-6000034~ = 1983 atc200x
    tb05e-6100001~ = 1984 atc200x
    tb05e-6200001~ = 1985 atc200x
    tb05e-6300001~ = 1986 atc200x
    tb05e-8400001~ = 1987 atc200x
    tb06e-2000033~ = 1981 atc250r
    tb06e-2100004~ = 1982 atc250r
    tb06e-2200005~ = 1983 atc250r
    tb06e-2300003~ = 1984 atc250r
    tb06e-2400001~ = 1985 atc250r
    tb06e-2500001~ = 1986 atc250r
    te01e-2000014~ = 1984 atc125m
    te01e-2100001~ = 1985 atc125m
    te01e-2200001~ = 1986 atc125m
    te01e-8300001~ = 1987 atc125m
    te04e-5000001~ = 1985 atc250es, atc250sx
    te04e-6000001~ = 1986 atc250es, atc250sx
    te04e-7005001~ = 1987 atc250sx
    te04e-8100001~ = 1987 atc250es
    te04e-????????~ = 1988 atc250es
    te08e-5000001~ = 1985 atc350x
    te08e-5100001~ = 1986 atc350x
    us90e-100122~ = 1970-1971 us90
    us90e-200001~ = 1972-1973 us90

    Any errors, let me know.

  2. #2
    denn is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Mar 2003
    Location
    Lehighton PA
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    213
    I was hoping for that since the bike is supposed to be all original. Thanks again

  3. #3
    Join Date
    Jun 2003
    Location
    South of Rochester, NY
    --
    3,470
    What manual by the way did you find all this info?

    Bruce
    '85 ATC350X - "Showgirl" '86 OEM plastics/Fork boots, Rear Axle/Rotor/Hubs, Hondaline Fender stabalizer/extender, Speedo/Tach, Tank cover.
    '86 ATC350X - 'Go-Go Girl'
    '82 ATC250R - 'California Girl' - Progressive springs F and R, Hondaline HL Guard, Fairing and Speedometer.
    '82 ATC250R -'Snow Bunny' Ice Racer, Very Clean, Hondaline Fairing, custom FT tire, will put in the 300R motor
    '70 US90 'Ol'Girl" - Aquarius Blue... all original seat and tires. Resto project in the future
    '85 ATC250ES-'Workin' Girl' CMP Footguard, Hondaline Mudflaps, Speedo, HL Lens, Block Heater, Work Light, Foot Peg Covers and Cooler Rack
    '85 ATC70 - All Original

    '84 Yamaha 225DX - Durablue +3" axle, DR motor, New Plastics, Foot, Hand and HL Guards.
    '85 Yamahauler - Gun Rack & 'Nerf Bars'
    '85 Yamahauler - Nearly together and restored
    '83 Suzuki ALT125 - Pieces
    '89 Suzuki LT-4WD - Token Golf Cart

  4. #4
    Join Date
    Dec 2008
    Location
    Monroe MI
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    5,787
    I compiled/cross checked from 25 manuals. I believe the Clymers had the most listed, some others had none.

  5. #5
    Join Date
    Nov 2012
    Location
    Waldoboro, maine
    --
    791
    I got an 82 r last weekend with a second gen motor, according to your list its an 83 and 84? I've checked the number about ten time to make sure it's right.

    Tb06e 2303555
    Is it the first two numbers dictate the year or the last number? Both?
    Just looking for answers. It'd be nice to know what I have.
    82 250r
    83 Big Red
    85 Auto-x
    If you've done business with me please leave me feedback
    http://www.3wheelerworld.com/showthr...ght=Bren_downe

  6. #6
    Join Date
    Dec 2008
    Location
    Monroe MI
    --
    5,787

  7. #7
    Join Date
    Sep 2010
    Location
    Van down by the river
    --
    3,874
    Awesome post! Just used it again.
    I bought an 86 Trx250 with a black motor. I knew they did not have black motors so come to find out it is an 87 engine.
    R.I.P. John Swinehart
    TRIKEFEST 11, 12, 13, 14, 15, 16, 17, 19
    Epic Mikfest 17
    86 200x
    85 250sx
    85 big red
    85 atc 70

    Fabiodriven- cereal goes in first, then milk.
    Ive got an 8 Grip on a 10 turd... Kyle Kiser

  8. #8
    Join Date
    Sep 2010
    Location
    Van down by the river
    --
    3,874
    Here is a strange #. It is supposed to be a 350x but the numbers dont match up to the X listed.
    Te08e-5022731

    Bidding starts at 1 bagillion oatmeal creme pies if it turns out to be an 87.
    R.I.P. John Swinehart
    TRIKEFEST 11, 12, 13, 14, 15, 16, 17, 19
    Epic Mikfest 17
    86 200x
    85 250sx
    85 big red
    85 atc 70

    Fabiodriven- cereal goes in first, then milk.
    Ive got an 8 Grip on a 10 turd... Kyle Kiser

  9. #9
    Join Date
    Jan 2014
    Location
    Prescott az
    --
    689
    Quote Originally Posted by captainweezy View Post
    Here is a strange #. It is supposed to be a 350x but the numbers dont match up to the X listed.
    Te08e-5022731

    Bidding starts at 1 bagillion oatmeal creme pies if it turns out to be an 87.
    That's an 85
    [/SIGPIC]
    85 350x
    83 200x-sold
    2 85 200x-sold
    06 kx250f-sold
    86 tecate-sold
    86 tri z powervalved
    85 BIG red
    18 rmz250
    87 lt80
    19 ttr110

  10. #10
    Join Date
    Aug 2023
    Location
    15943
    --
    1
    mine is TBO1E-2238928 what is my motor?

  11. #11
    Footy's Avatar
    Footy is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Feb 2015
    Location
    Charlotte, N.C.
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    309
    Quote Originally Posted by music> View Post
    mine is TBO1E-2238928 what is my motor?
    Looks like a 1982 atc185S
    Put your butt on the inside fender or end up on the ground!

    TRX450ER
    ATC250SX
    ATC350X
    ATC110
    ATC185S
    XR100R
    CRF230F
    Raptor 125
    Breeze 125
    Grizzly700

  12. #12
    Join Date
    Sep 2023
    Location
    Warwick Rhode Island
    --
    2
    Could anybody tell me what I got here?
    TB02E 2322278. It was sold to me as a 1985 atc 110 but dont think it's an 85. It has the silver cases not black

  13. #13
    Footy's Avatar
    Footy is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Feb 2015
    Location
    Charlotte, N.C.
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    309
    1982 based on the list at the start of this thread.
    Put your butt on the inside fender or end up on the ground!

    TRX450ER
    ATC250SX
    ATC350X
    ATC110
    ATC185S
    XR100R
    CRF230F
    Raptor 125
    Breeze 125
    Grizzly700

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