1. Announcement:
    The RULES- Read em and weep.
    Billy Golightly (Always finding new and exciting ways to not give a hoot in hell)
    03-02-2007
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    177,628
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Threads 1 to 50 of 733

Forum: Mad Scientists Lair

This forum is for all hardcore, extremely technical information relating to production and new age trikes. Hybrids, jig construction, high level engine performance, geometry, fabrication, and engineering. Be prepared to get a blast of information that no mortal man can stand. If you can't leave anything stock, or are hungry for highly technical information applicable to trikes this is the forum for you. Igor, fetch me that protractor and metal scribe. "Yes, master!"

  1. Sticky Thread Read This! Forum Purpose.

    Started by Billy Golightly, 03-16-2007 11:41 PM
    • Replies: 2
    • Views: 20,796
    J_Stafford
    05-30-2010, 06:00 PM Go to last post

  1. 200x engine build.

    Started by Shawn Powell, 10-31-2025 09:29 PM
    • Replies: 1
    • Views: 741
    Shawn Powell
    11-03-2025, 12:07 AM Go to last post

  2. KTX Pro Plastics DONT DO IT!

    Started by Shawn Powell, 09-10-2025 03:06 PM
    • Replies: 0
    • Views: 965
    Shawn Powell
    09-10-2025, 03:06 PM Go to last post

  3. 85 250sx final drive machined to work on 1986 bike

    Started by rustyhondas, 04-13-2025 02:35 PM
    • Replies: 0
    • Views: 4,321
    rustyhondas
    04-13-2025, 02:35 PM Go to last post

  4. Exhaust pics atc250r 1st 2nd Gen pipes pics

    Started by Click, 06-28-2024 01:08 PM
    • Replies: 0
    • Views: 25,701
    Click
    06-28-2024, 01:08 PM Go to last post

  5. Cool Independent rear suspension road legal Honda 200m

    Started by SteveTheC, 01-20-2024 01:20 PM
    • Replies: 1
    • Views: 14,228
    ATC King
    01-28-2024, 12:08 AM Go to last post

  6. '84 200x carb slide options...

    Started by rsheehan79, 09-25-2023 06:15 AM
    • Replies: 1
    • Views: 14,101
    atc300r
    09-26-2023, 08:00 PM Go to last post

  7. Valve adjustment issues

    Started by agedatc, 03-31-2021 10:39 PM
    • Replies: 5
    • Views: 19,588
    ATC200X4716
    05-29-2023, 10:00 PM Go to last post

  8. Correct clutch pattern

    Started by Tortuga, 09-22-2022 04:34 PM
    • Replies: 4
    • Views: 16,868
    Tortuga
    09-23-2022, 03:37 PM Go to last post

  9. its that time again, ATC70 BUILD COMING.

    Started by KASEY, 11-24-2021 11:31 PM
    2 Pages •
    1 2
    30 Attachment(s)
    • Replies: 18
    • Views: 26,859
    BOB MARLIN
    04-05-2022, 12:13 PM Go to last post

  10. Turbo ATC200X... Go-Kart

    Started by ARJ0019, 02-09-2021 02:39 AM
    • Replies: 6
    • Views: 20,187
    ps2fixer
    02-12-2022, 04:10 PM Go to last post

  11. ATC Steering Stem Swaps?

    Started by Mr. NeverPlea, 10-30-2021 09:55 PM
    • Replies: 5
    • Views: 17,660
    Dirtcrasher
    02-12-2022, 03:53 PM Go to last post

  12. Hondaline ATC250es Cargo Net

    Started by sp00nfedem1, 01-11-2022 11:33 AM
    • Replies: 0
    • Views: 14,619
    sp00nfedem1
    01-11-2022, 11:33 AM Go to last post

  13. LiIon batteries for our ATC's

    Started by Gabriel, 12-01-2018 12:31 PM
    2 Pages •
    1 2
    3 Attachment(s)
    • Replies: 20
    • Views: 90,306
    ATC King
    11-09-2021, 10:41 PM Go to last post

  14. brake caliper swaps for 83-85 200x's

    Started by jason85atc250r, 03-17-2007 10:52 PM
    7 Pages •
    1 2 3 4 5 ... 7
    12 Attachment(s)
    • Replies: 94
    • Views: 160,593
    Leevvii
    06-20-2021, 03:23 AM Go to last post

  15. Check Out My Atc500r I Have Some Questions Sweet 500r Please Look

    Started by benm492, 05-07-2009 01:27 AM
    3 Pages •
    1 2 3
    2 Attachment(s)
    • Replies: 39
    • Views: 37,666
    benm492
    06-03-2021, 10:36 PM Go to last post

  16. Predator Swap

    Started by 200Maniac, 03-13-2021 09:15 AM
    • Replies: 2
    • Views: 17,444
    TrikeKid
    03-24-2021, 11:29 PM Go to last post

  17. Mini-R project

    Started by atc500x, 05-10-2020 11:31 PM
    2 Pages •
    1 2
    17 Attachment(s)
    • Replies: 29
    • Views: 47,266
    atc500x
    02-11-2021, 08:46 AM Go to last post

  18. Poll Poll: New Tri-z clutch covers

    Started by TRITecate350, 02-20-2008 08:03 PM
    3 Pages •
    1 2 3
    • Replies: 32
    • Views: 59,954
    YTZ drew
    01-16-2021, 11:27 PM Go to last post

  19. sand casting/aluminum-projects

    Started by Shep1970, 08-06-2017 09:36 PM
    6 Pages •
    1 2 3 4 5 ... 6
    112 Attachment(s)
    • Replies: 76
    • Views: 107,945
    Shep1970
    09-28-2020, 06:35 PM Go to last post

  20. Best frame for the job

    Started by JK47, 09-07-2020 11:15 AM
    • Replies: 0
    • Views: 15,075
    JK47
    09-07-2020, 11:15 AM Go to last post

  21. 87 200x Clutch Question

    Started by jasong_10, 07-25-2020 10:35 PM
    2 Pages •
    1 2
    • Replies: 15
    • Views: 32,462
    fieldy
    07-27-2020, 10:33 PM Go to last post

  22. 1983 250r airbox hose

    Started by ATC90JAY, 07-22-2020 09:06 PM
    • Replies: 0
    • Views: 15,398
    ATC90JAY
    07-22-2020, 09:06 PM Go to last post

  23. Locked up 85 atc 70 tranny.

    Started by Russman1986, 05-03-2020 03:39 PM
    • Replies: 2
    • Views: 16,372
    ATC King
    07-15-2020, 08:32 PM Go to last post

  24. What is it ? Help

    Started by jaybird4554, 06-15-2020 07:37 PM
    • Replies: 1
    • Views: 17,337
    oldskool83
    06-15-2020, 07:51 PM Go to last post

  25. New Pipe for the 250R!

    Started by Red Rider, 05-02-2020 12:51 AM
    2 Pages •
    1 2
    27 Attachment(s)
    • Replies: 25
    • Views: 36,511
    Tri-Z 250
    06-05-2020, 09:38 AM Go to last post

  26. Extreme Pipe Repair???

    Started by TheSuperJank, 05-01-2020 12:55 AM
    • Replies: 0
    • Views: 15,134
    TheSuperJank
    05-01-2020, 12:55 AM Go to last post

  27. Best cold starting but no starting when hot and eats plugs

    Started by RickieLee, 04-14-2020 04:14 PM
    • Replies: 2
    • Views: 16,927
    RickieLee
    04-14-2020, 07:39 PM Go to last post

  28. ATC 250R - Wider Footpegs

    Started by Red Rider, 11-03-2010 08:59 PM
    2 Pages •
    1 2
    10 Attachment(s)
    • Replies: 26
    • Views: 56,004
    Red Rider
    04-14-2020, 12:35 AM Go to last post

  29. need help for choose my carb for 84200m with wiseco 10.25 /1

    Started by superjeff97500, 03-25-2020 01:46 PM
    • Replies: 0
    • Views: 15,756
    superjeff97500
    03-25-2020, 01:46 PM Go to last post

  30. 200s Build

    Started by 3wheeler_kid, 03-23-2020 10:24 PM
    • Replies: 2
    • Views: 17,273
    3wheeler_kid
    03-24-2020, 04:42 PM Go to last post

  31. Fat Cat 250sx

    Started by atc500x, 11-29-2009 10:47 PM
    3 Pages •
    1 2 3
    23 Attachment(s)
    • Replies: 40
    • Views: 69,488
    atc500x
    02-02-2020, 09:10 AM Go to last post

  32. How to power valve your Tri-Z

    Started by Derrick Adams, 01-31-2005 09:24 PM
    4 Pages •
    1 2 3 4
    18 Attachment(s)
    • Replies: 50
    • Views: 84,417
    El Camexican
    12-30-2019, 07:15 PM Go to last post

  33. TRX250R Airbox Install on ATC250R

    Started by Red Rider, 02-13-2011 01:51 AM
    2 Pages •
    1 2
    22 Attachment(s)
    • Replies: 16
    • Views: 40,452
    Red Rider
    11-26-2019, 11:27 PM Go to last post

  34. Chain Alignment

    Started by Gabriel, 10-23-2019 10:55 AM
    • Replies: 4
    • Views: 18,935
    NeverLift
    10-23-2019, 03:04 PM Go to last post

  35. External Oil cooler atc185s case?

    Started by Laredo, 10-23-2019 08:59 AM
    • Replies: 2
    • Views: 17,617
    Laredo
    10-23-2019, 10:14 AM Go to last post

  36. New start to the 500 project

    Started by jeffatc250r, 01-11-2007 05:01 PM
    3 Pages •
    1 2 3
    9 Attachment(s)
    • Replies: 31
    • Views: 52,912
    atc300r
    10-22-2019, 01:08 PM Go to last post

  37. 1986 TRX/ATC Expansion Chamber Question

    Started by bauercolton2000, 08-22-2019 02:46 PM
    • Replies: 1
    • Views: 16,455
    Tri-Z 250
    08-23-2019, 10:34 AM Go to last post

  38. Tri-Z 600 conversion - Part 2

    Started by tri dee, 01-03-2008 01:32 PM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 15
    • Views: 46,938
    ATC-Eric
    08-03-2019, 08:38 PM Go to last post

  39. Mini Bike trike

    Started by Gabriel, 07-10-2019 05:07 PM
    • Replies: 0
    • Views: 16,343
    Gabriel
    07-10-2019, 05:07 PM Go to last post

  40. mudproof air intake gen 1 aircooled suggestions?

    Started by OldNo437, 07-02-2019 10:27 AM
    • Replies: 0
    • Views: 15,637
    OldNo437
    07-02-2019, 10:27 AM Go to last post

  41. Project Loose Fillings AKA The Goblin

    Started by Gabriel, 10-01-2018 01:27 PM
    7 Pages •
    1 2 3 4 5 ... 7
    17 Attachment(s)
    • Replies: 93
    • Views: 109,231
    yaegerb
    06-13-2019, 08:09 PM Go to last post

  42. EFI on an ATC??

    Started by Gabriel, 04-30-2019 02:07 PM
    2 Attachment(s)
    • Replies: 11
    • Views: 27,448
    RubberSalt
    05-01-2019, 01:30 PM Go to last post

  43. Single wheel pull conversion.

    Started by Gabriel, 01-22-2019 03:10 PM
    1 Attachment(s)
    • Replies: 10
    • Views: 24,864
    RubberSalt
    05-01-2019, 03:02 AM Go to last post

  44. Honda engine parts interchangeability

    Started by Gabriel, 03-25-2019 02:38 PM
    • Replies: 1
    • Views: 16,576
    RubberSalt
    04-30-2019, 11:34 AM Go to last post

  45. ATC 70 + Powerwheels = electric ATC 70

    Started by ADOR, 11-11-2010 05:39 PM
    2 Pages •
    1 2
    • Replies: 15
    • Views: 52,043
    Quinc
    04-04-2019, 11:54 AM Go to last post

  46. Suzuki dr350/ atc350x conversion

    Started by nick walke, 01-03-2010 12:45 PM
    3 Pages •
    1 2 3
    58 Attachment(s)
    • Replies: 38
    • Views: 77,085
    HorseMcHorseman
    04-02-2019, 12:02 AM Go to last post

  47. 200cc engine build......

    Started by Gabriel, 02-06-2019 04:13 PM
    • Replies: 5
    • Views: 19,739
    oldskool83
    03-25-2019, 12:41 PM Go to last post

  48. Positive Crankcase Ventilation

    Started by Gabriel, 01-30-2019 11:38 AM
    • Replies: 1
    • Views: 16,925
    big specht
    01-30-2019, 08:56 PM Go to last post

  49. 1986/87 Honda 200x headlight “shells”

    Started by Shep1970, 05-01-2018 08:36 PM
    3 Pages •
    1 2 3
    25 Attachment(s)
    • Replies: 31
    • Views: 63,867
    Shep1970
    01-23-2019, 02:48 PM Go to last post

  50. Hand shifter

    Started by Gabriel, 01-23-2019 12:28 PM
    • Replies: 1
    • Views: 17,269
    shortline10
    01-23-2019, 12:38 PM Go to last post
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