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Threads 1 to 40 of 136

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
    5 Pages •
    1 2 3 4 5
    3 Attachment(s)
    • Replies: 74
    • Views: 185,345
    keefallan
    09-20-2020, 11:40 AM Go to last post

  1. 1997 Mercury 225 HP Carbureted rpm issues

    Started by 21challanger, 04-14-2024 02:44 PM
    4 Attachment(s)
    • Replies: 9
    • Views: 229
    21challanger
    04-15-2024, 02:59 PM Go to last post

  2. Yamaha Tech: Yamaha 2.6L Frankenstein build

    Started by 225XCL, 05-25-2014 07:01 PM
    7 Pages •
    1 2 3 4 5 6 7
    5 Attachment(s)
    • Replies: 97
    • Views: 11,582
    Looper_200
    03-09-2024, 08:20 PM Go to last post

  3. 3.0 LH sport master

    Started by 265mercman, 04-08-2024 05:57 AM
    • Replies: 1
    • Views: 99
    265mercman
    04-09-2024, 11:16 AM Go to last post

  4. Mercury Tech: Mercury 2.5 260 Engine builders Opinion / Advice needed.

    Started by 4-MULA-V, 02-11-2024 01:11 PM
    5 Attachment(s)
    • Replies: 9
    • Views: 662
    25two.stroke
    02-13-2024, 01:32 PM Go to last post

  5. Mercury Tech: Optimax Maintenance at 100 hours

    Started by 4Speed, 11-18-2023 04:07 PM
    • Replies: 6
    • Views: 433
    4Speed
    02-18-2024, 12:57 PM Go to last post

  6. Mercury 450r wiring diagrams for rigging?

    Started by 724Bravo, 01-20-2024 04:10 PM
    • Replies: 0
    • Views: 260
    724Bravo
    01-20-2024, 04:10 PM Go to last post

  7. OMC Tech: 1999 V4 Looper Phantom SLOW mode activation

    Started by 72lightning, 01-05-2024 01:00 AM
    • Replies: 4
    • Views: 641
    72lightning
    01-27-2024, 01:34 AM Go to last post

  8. 1991 Mercury 200XRI voltage and idle issue

    Started by 88MCPS200, 08-13-2023 09:29 PM
    • Replies: 7
    • Views: 603
    skialot2
    02-28-2024, 12:13 PM Go to last post

  9. 2.5L Jet Sizes

    Started by 99fxst99, 03-12-2024 05:56 PM
    1 Attachment(s)
    • Replies: 3
    • Views: 277
    David - WI
    03-13-2024, 01:23 PM Go to last post

  10. Lower Unit Filler

    Started by 99fxst99, 03-20-2024 11:22 PM
    • Replies: 8
    • Views: 279
    OnPad
    03-22-2024, 01:46 PM Go to last post

  11. 2.5 help

    Started by 99fxst99, 04-04-2024 07:53 AM
    2 Pages •
    1 2
    7 Attachment(s)
    • Replies: 18
    • Views: 552
    tlwjkw
    04-08-2024, 10:10 PM Go to last post

  12. 3 ram trim pump assembly faulty

    Started by Aaronhl, 01-13-2024 01:07 PM
    • Replies: 3
    • Views: 632
    Aaronhl
    01-17-2024, 08:27 PM Go to last post

  13. 3.0 liter lower unit carrier pull

    Started by Aaronhl, 01-21-2024 06:05 PM
    • Replies: 10
    • Views: 820
    Chaz
    01-24-2024, 02:48 PM Go to last post

  14. Cracked Sleeve

    Started by Aaronhl, 04-01-2024 02:15 PM
    3 Pages •
    1 2 3
    • Replies: 44
    • Views: 1,225
    rock
    04-20-2024, 08:57 AM Go to last post

  15. a - Keystone (tapered) Piston Ring

    Started by Aaronhl, 04-06-2024 10:51 PM
    • Replies: 5
    • Views: 142
    Aaronhl
    04-09-2024, 09:21 AM Go to last post

  16. Second effort single pinion v8 lower vs stock v8 lower

    Started by Affromax, 03-15-2024 03:10 PM
    lower unit, omcv8, second effort 3 Attachment(s)
    • Replies: 9
    • Views: 441
    Affromax
    03-25-2024, 10:43 PM Go to last post

  17. Merc 3.0

    Started by Ally Cat, Today 12:38 PM
    • Replies: 4
    • Views: 34
    Ally Cat
    Today, 04:20 PM Go to last post

  18. Mo rpm

    Started by Ally Cat, Today 12:47 PM
    • Replies: 0
    • Views: 29
    Ally Cat
    Today, 12:47 PM Go to last post

  19. Mercury 3.0L EFI Slide Intake Wanted !!

    Started by Amatuer, 02-11-2024 01:19 AM
    1 Attachment(s)
    • Replies: 2
    • Views: 165
    Amatuer
    02-11-2024, 06:35 AM Go to last post

  20. Oil Drain and Vent Plug Gaskets

    Started by Basnova, 01-18-2024 09:47 AM
    • Replies: 9
    • Views: 1,387
    25two.stroke
    01-19-2024, 11:39 AM Go to last post

  21. Mercury 150 3.0L fourstrroke camshaft top lobe.

    Started by bigshrimpin, 03-13-2024 12:31 PM
    7 Attachment(s)
    • Replies: 14
    • Views: 571
    PanRonnie
    04-04-2024, 11:25 PM Go to last post

  22. 02 Mercury 225 Optimax fuel/air Issue!

    Started by Boatrescue, 03-27-2024 12:13 PM
    • Replies: 0
    • Views: 93
    Boatrescue
    03-27-2024, 12:13 PM Go to last post

  23. Ever Heard Of This?

    Started by bullet123, 05-11-2023 04:29 AM
    2 Pages •
    1 2
    • Replies: 16
    • Views: 830
    tlwjkw
    04-02-2024, 08:18 AM Go to last post

  24. High water pressure 225 promax

    Started by Bunger, 05-24-2020 10:32 AM
    6 Pages •
    1 2 3 4 5 6
    13 Attachment(s)
    • Replies: 87
    • Views: 3,943
    4Speed
    03-07-2024, 07:25 AM Go to last post

  25. etec 300s

    Started by Captain UK, 01-12-2024 08:58 PM
    2 Attachment(s)
    • Replies: 14
    • Views: 737
    PanRonnie
    01-16-2024, 02:08 PM Go to last post

  26. Ratcheting Case Question.

    Started by Carter Powell, 01-21-2024 02:17 PM
    • Replies: 10
    • Views: 1,468
    bbezok
    01-25-2024, 02:30 PM Go to last post

  27. Water pressure in a sportmaster at 60MPH

    Started by Carter Powell, 02-03-2024 08:54 PM
    • Replies: 11
    • Views: 740
    Jim Speros
    02-14-2024, 10:56 AM Go to last post

  28. CMC Jackplate motor rebuilt to run faster.

    Started by Carter Powell, 02-26-2024 12:57 PM
    • Replies: 1
    • Views: 178
    donmac
    02-28-2024, 07:55 PM Go to last post

  29. Trophy Propelles

    Started by Carter Powell, 03-18-2024 12:49 PM
    • Replies: 3
    • Views: 277
    David
    03-24-2024, 05:55 PM Go to last post

  30. Mercruiser Trim Pump issue?

    Started by Carter Powell, 03-19-2024 04:40 PM
    • Replies: 8
    • Views: 262
    Carter Powell
    03-20-2024, 06:27 PM Go to last post

  31. Control box up tilt goes down instead of up?

    Started by Carter Powell, 03-21-2024 12:03 PM
    • Replies: 7
    • Views: 252
    Chaz
    04-01-2024, 09:39 AM Go to last post

  32. Adding more heat to a 260 EFI Merc.

    Started by Carter Powell, 04-13-2024 01:16 PM
    • Replies: 11
    • Views: 419
    tlwjkw
    04-21-2024, 05:27 AM Go to last post

  33. Mercury Tech: 1978 2.4 powerhead swap. What fits?

    Started by Cheifjunk, 02-09-2024 06:59 PM
    1 Attachment(s)
    • Replies: 5
    • Views: 253
    Cheifjunk
    02-10-2024, 12:10 PM Go to last post

  34. mercury 3.0 exhaust relief.

    Started by chevy355mark, 02-27-2020 07:43 PM
    2 Pages •
    1 2
    4 Attachment(s)
    • Replies: 22
    • Views: 4,757
    Aaronhl
    04-22-2024, 07:52 PM Go to last post

  35. Pro Max 2.5 two stroke oil

    Started by creeljd, 02-26-2024 05:18 PM
    2 Pages •
    1 2
    • Replies: 15
    • Views: 881
    big tom
    03-02-2024, 11:25 AM Go to last post

  36. Mercury Tech: WOT plug reading

    Started by croSSed, 04-13-2024 04:47 PM
    • Replies: 2
    • Views: 166
    KIRCHNER
    04-14-2024, 07:13 AM Go to last post

  37. Mercury Tech: 2.4L One Piece Heads

    Started by croSSed, 04-18-2024 11:55 PM
    • Replies: 3
    • Views: 98
    David - WI
    04-19-2024, 01:00 AM Go to last post

  38. Mercury Tech: Difference in stators

    Started by ctered, 07-12-2008 08:12 PM
    • Replies: 10
    • Views: 2,151
    rarnephy
    01-26-2024, 06:04 AM Go to last post

  39. 77 allison did they use a layer of wood in the hull between layers of glass?

    Started by derekfl, 03-23-2024 06:20 PM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 18
    • Views: 558
    KIRCHNER
    03-28-2024, 07:29 AM Go to last post

  40. Mercury Tech: Mercury 225 Optimax Surging

    Started by DieselDood, 02-03-2024 11:36 PM
    1 Attachment(s)
    • Replies: 13
    • Views: 587
    XstreamVking
    02-09-2024, 05:54 PM Go to last post
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