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Forum: Technical Discussion

The place for mechanics, racers, governing body officials, tech-talk junkies, or anyone seeking engine-related technical help.

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  1. Exclamation Sticky Thread Sticky: New low cost ECU alternative!

    Started by Tony Brucato, 07-21-2006 08:51 AM
    6 Pages •
    1 2 3 4 5 6
    3 Attachment(s)
    • Replies: 76
    • Views: 230,691
    rjdubiel
    07-07-2025, 08:51 AM Go to last post

  1. Mercury Tech: 2L heads on a 2.4

    Started by croSSed, 07-04-2025 01:18 PM
    • Replies: 13
    • Views: 439
    LakeFever
    Today, 01:29 AM Go to last post

  2. Mercury Tech: 40:1 Pre-mix Chocking on Excess Oil; Options?

    Started by croSSed, 07-01-2025 06:13 PM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 18
    • Views: 530
    OnPad
    Yesterday, 10:30 PM Go to last post

  3. mariner 175 with a old mercury block inside, Can anyone help me identify what engine

    Started by appolageticsoul, 07-01-2025 02:31 AM
    2 Pages •
    1 2
    22 Attachment(s)
    • Replies: 29
    • Views: 1,244
    appolageticsoul
    Yesterday, 08:01 PM Go to last post

  4. Mercury UU Block. Anyone know what this is?

    Started by G-Train, 04-11-2021 07:42 PM
    • Replies: 3
    • Views: 378
    appolageticsoul
    Yesterday, 07:59 PM Go to last post

  5. fuel flow / h.p.

    Started by KIRCHNER, 07-03-2025 05:09 PM
    • Replies: 2
    • Views: 143
    KIRCHNER
    Yesterday, 03:34 PM Go to last post

  6. Yamaha 40 Issue Finally Found

    Started by markt111, Yesterday 10:02 AM
    • Replies: 0
    • Views: 50
    markt111
    Yesterday, 10:02 AM Go to last post

  7. Yamaha 40 Issue Finally Found

    Started by markt111, Yesterday 09:58 AM
    • Replies: 0
    • Views: 29
    markt111
    Yesterday, 09:58 AM Go to last post

  8. Mercury Tech: 3.0 Carb Unresponsiveness 1-2k RPM

    Started by pyroracing85, 07-07-2025 08:46 PM
    • Replies: 1
    • Views: 82
    Chaz
    07-07-2025, 09:21 PM Go to last post

  9. Mercury Tech: Please help me get this motor running

    Started by wiigelec, 06-28-2025 08:34 PM
    3 Attachment(s)
    • Replies: 13
    • Views: 509
    Jim Speros
    07-07-2025, 04:48 PM Go to last post

  10. Mercury Tech: rebuilt XR6, temp creeps up

    Started by markmc60, 07-07-2025 11:17 AM
    • Replies: 13
    • Views: 219
    markmc60
    07-07-2025, 04:21 PM Go to last post

  11. Hulls that are prone to spilt turn.

    Started by NZ Sidewinder, 07-05-2025 04:19 PM
    3 Pages •
    1 2 3
    4 Attachment(s)
    • Replies: 34
    • Views: 825
    NZ Sidewinder
    07-07-2025, 03:55 PM Go to last post

  12. Pistons ?

    Started by mercrazy, 07-05-2025 08:43 PM
    • Replies: 5
    • Views: 316
    LakeFever
    07-07-2025, 05:34 AM Go to last post

  13. 7 petal ?

    Started by mercrazy, 07-04-2025 08:51 AM
    • Replies: 2
    • Views: 236
    mercrazy
    07-05-2025, 12:35 PM Go to last post

  14. Plastic cage bearings?

    Started by mercrazy, 07-04-2025 07:43 AM
    2 Pages •
    1 2
    • Replies: 15
    • Views: 391
    KIRCHNER
    07-05-2025, 08:23 AM Go to last post

  15. OMC Tech: mystery pistons

    Started by RyleyGuy, 06-30-2025 10:23 PM
    1 Attachment(s)
    • Replies: 4
    • Views: 357
    RyleyGuy
    07-04-2025, 06:55 PM Go to last post

  16. 225 ProMax

    Started by tabme, 07-03-2025 06:56 PM
    • Replies: 3
    • Views: 198
    tlwjkw
    07-03-2025, 08:13 PM Go to last post

  17. Reed gap?

    Started by mercrazy, 06-30-2025 09:52 AM
    • Replies: 4
    • Views: 292
    AlliStan
    07-03-2025, 03:52 PM Go to last post

  18. Mercury Tech: Is this motor REALLY a 1978 200hp?

    Started by Raysoncrafter, 05-06-2012 08:05 PM
    2 Pages •
    1 2
    • Replies: 23
    • Views: 4,246
    pcrussell50
    07-03-2025, 12:37 PM Go to last post

  19. Headache on a rebuild

    Started by revlimiter776, 06-29-2025 11:06 AM
    1 Attachment(s)
    • Replies: 14
    • Views: 591
    David - WI
    07-03-2025, 12:37 PM Go to last post

  20. 2007 Evinrude Etec 90 Diagnostic Question

    Started by jEFF cARLSON, 07-01-2025 09:23 AM
    1 Attachment(s)
    • Replies: 1
    • Views: 183
    racer
    07-02-2025, 06:58 PM Go to last post

  21. Computer tuning

    Started by vnemous, 07-02-2025 11:56 AM
    • Replies: 2
    • Views: 176
    vnemous
    07-02-2025, 06:53 PM Go to last post

  22. question for o g mechanics

    Started by KIRCHNER, 07-02-2025 09:10 AM
    • Replies: 4
    • Views: 243
    KIRCHNER
    07-02-2025, 06:36 PM Go to last post

  23. Response

    Started by mercrazy, 06-30-2025 10:10 AM
    • Replies: 2
    • Views: 196
    pcrussell50
    07-02-2025, 12:02 PM Go to last post

  24. Mercury Tech: 40:1 Pre-mix Chocking on Excess Oil; Options?

    Started by croSSed, 07-01-2025 03:57 PM
    • Replies: 0
    • Views: 134
    croSSed
    07-01-2025, 03:57 PM Go to last post

  25. Block ?

    Started by mercrazy, 07-01-2025 12:38 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 217
    tlwjkw
    07-01-2025, 03:12 PM Go to last post

  26. Single ram steering arm

    Started by Merc 2.5, 06-15-2025 07:53 PM
    4 Pages •
    1 2 3 4
    5 Attachment(s)
    • Replies: 47
    • Views: 1,998
    Aaronhl
    07-01-2025, 11:03 AM Go to last post

  27. Johnson 3.6 gt mid question

    Started by Rhinoortiz, 05-23-2025 01:32 PM
    3 Attachment(s)
    • Replies: 4
    • Views: 918
    RyleyGuy
    06-30-2025, 10:13 PM Go to last post

  28. Mercury Tech: What does this do?

    Started by trickcraft, 06-30-2025 01:14 PM
    5 Attachment(s)
    • Replies: 9
    • Views: 302
    trickcraft
    06-30-2025, 09:13 PM Go to last post

  29. X Dimension

    Started by ChopperDr, 06-25-2025 04:00 PM
    • Replies: 1
    • Views: 217
    ChopperDr
    06-30-2025, 07:06 PM Go to last post

  30. Mercury Tech: Skeg Condition

    Started by croSSed, 06-29-2025 05:48 PM
    1 Attachment(s)
    • Replies: 8
    • Views: 386
    croSSed
    06-30-2025, 04:19 PM Go to last post

  31. merc mid section housing liners

    Started by Aaronhl, 06-29-2025 05:18 PM
    • Replies: 3
    • Views: 254
    Aaronhl
    06-30-2025, 02:17 PM Go to last post

  32. Mercury Tech: Promax 225 not showing exhaust underwater

    Started by sumerboard, 06-19-2025 10:48 PM
    2 Pages •
    1 2
    • Replies: 16
    • Views: 701
    tlwjkw
    06-30-2025, 03:14 AM Go to last post

  33. 300x high idle after running

    Started by CSG, 06-29-2025 04:58 PM
    • Replies: 0
    • Views: 110
    CSG
    06-29-2025, 04:58 PM Go to last post

  34. p]lot tube v/s gps

    Started by KIRCHNER, 06-14-2025 05:30 PM
    • Replies: 11
    • Views: 818
    KIRCHNER
    06-29-2025, 04:05 PM Go to last post

  35. Fiber reed life?

    Started by mercrazy, 06-20-2025 08:06 AM
    • Replies: 7
    • Views: 618
    XstreamVking
    06-29-2025, 03:53 PM Go to last post

  36. Promax piston rings

    Started by mercrazy, 06-17-2025 11:03 AM
    2 Pages •
    1 2
    • Replies: 18
    • Views: 869
    LakeFever
    06-29-2025, 12:45 PM Go to last post

  37. Headache on a rebuild

    Started by revlimiter776, 06-29-2025 11:13 AM
    • Replies: 0
    • Views: 96
    revlimiter776
    06-29-2025, 11:13 AM Go to last post

  38. 1998 FF build

    Started by skialot2, 04-18-2025 01:27 AM
    2 Pages •
    1 2
    37 Attachment(s)
    • Replies: 28
    • Views: 3,481
    LakeFever
    06-28-2025, 03:08 AM Go to last post

  39. 97 mariner 175 magnum efi converted to merc v200hp carbs setup, irratic idle in drive

    Started by appolageticsoul, 06-28-2025 02:31 AM
    • Replies: 0
    • Views: 136
    appolageticsoul
    06-28-2025, 02:31 AM Go to last post

  40. 300x Oil Pump Output test

    Started by JOSEPH SHULMAN, 06-23-2025 05:28 PM
    • Replies: 5
    • Views: 316
    Chaz
    06-27-2025, 07:55 PM Go to last post
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