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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.

Sponsored by: Chris Carson's Marine/CCMS Custom Reeds

  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: 173,092
    keefallan
    09-20-2020, 11:40 AM Go to last post

  1. Electrical help

    Started by KIRCHNER, 10-04-2023 04:02 PM
    • Replies: 10
    • Views: 896
    KIRCHNER
    11-07-2023, 05:47 PM Go to last post

  2. Thoughts on these block cracks on rebuild`

    Started by foodie, 11-04-2023 05:46 AM
    2 Attachment(s)
    • Replies: 10
    • Views: 713
    skialot2
    11-06-2023, 09:33 PM Go to last post

  3. 200 Optimax upgrade

    Started by 99fxst99, 11-05-2023 06:20 PM
    • Replies: 1
    • Views: 281
    25two.stroke
    11-06-2023, 06:06 PM Go to last post

  4. Running Verado without power steering

    Started by native2, 06-02-2020 06:15 PM
    • Replies: 9
    • Views: 3,553
    JPEROG
    11-05-2023, 11:06 AM Go to last post

  5. Mercury Tech: Bass can swap

    Started by Deznuts3570, 11-01-2023 06:37 PM
    2 Pages •
    1 2
    4 Attachment(s)
    • Replies: 27
    • Views: 1,102
    AlafanGT
    11-04-2023, 06:29 PM Go to last post

  6. 240 hp 2.5 sleeve

    Started by ivlakeman, 11-04-2023 03:12 AM
    • Replies: 2
    • Views: 297
    ivlakeman
    11-04-2023, 06:04 PM Go to last post

  7. battery issue?

    Started by Slowroll, 10-30-2023 06:46 PM
    • Replies: 4
    • Views: 521
    Slowroll
    11-01-2023, 01:18 PM Go to last post

  8. What sensor goes here?

    Started by VkingMike, 10-30-2023 07:02 PM
    3 Attachment(s)
    • Replies: 9
    • Views: 505
    VkingMike
    10-31-2023, 01:33 PM Go to last post

  9. Timing arm sticky not going to full timing

    Started by 62 bugzilla, 10-17-2023 06:53 PM
    • Replies: 7
    • Views: 554
    rprinzo
    10-31-2023, 08:17 AM Go to last post

  10. 85 Mercury Black Max 150 Trim Problem

    Started by dkpz64, 10-27-2023 09:06 PM
    • Replies: 4
    • Views: 339
    dkpz64
    10-30-2023, 04:14 PM Go to last post

  11. Mystery Engine Identification?

    Started by LukeA, 10-26-2023 01:40 PM
    3 Pages •
    1 2 3
    2.4, 2.5, black max, serial number 11 Attachment(s)
    • Replies: 32
    • Views: 1,487
    David - WI
    10-29-2023, 01:06 PM Go to last post

  12. merc 2.5 260 EFI rebuild

    Started by Alby28race, 10-20-2023 07:43 AM
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 26
    • Views: 1,302
    Stoker boy
    10-28-2023, 10:22 AM Go to last post

  13. Help finding proper OMC manual please

    Started by Mr.LS6, 10-23-2023 09:25 PM
    • Replies: 5
    • Views: 343
    James45157
    10-26-2023, 09:12 PM Go to last post

  14. Mercury Tech: Trophy Plus without the Blowout ring

    Started by DieselDood, 10-19-2023 08:49 AM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 15
    • Views: 637
    DieselDood
    10-25-2023, 01:23 PM Go to last post

  15. 300x

    Started by steve berry, 10-25-2023 08:27 AM
    • Replies: 1
    • Views: 275
    25two.stroke
    10-25-2023, 11:13 AM Go to last post

  16. Post Help yamaha v4 bore damage diagnosis

    Started by Jungatz, 10-25-2023 08:37 AM
    yamaha bore damage 9 Attachment(s)
    • Replies: 1
    • Views: 166
    ChrisCarsonMarine
    10-25-2023, 09:42 AM Go to last post

  17. Exclamation Some updates to how you can add images to your posts

    Started by Scream And Fly, 10-24-2023 04:39 PM
    2 Attachment(s)
    • Replies: 1
    • Views: 217
    pcrussell50
    10-24-2023, 08:14 PM Go to last post

  18. What causes this damage to piston? Merc 2.5 Efi 200 phishing

    Started by killerpirate, 10-22-2023 09:18 AM
    4 Attachment(s)
    • Replies: 14
    • Views: 747
    LakeFever
    10-24-2023, 06:42 PM Go to last post

  19. Quality boring Services

    Started by faztbullet, 10-23-2023 07:15 PM
    • Replies: 0
    • Views: 225
    faztbullet
    10-23-2023, 07:15 PM Go to last post

  20. OMC Tech: Cylinder Head unavailable.

    Started by Jas24zk, 10-21-2023 01:56 AM
    • Replies: 4
    • Views: 407
    Jas24zk
    10-21-2023, 10:46 AM Go to last post

  21. 2.5 EFI 260 fuel

    Started by Alby28race, 10-07-2023 01:45 AM
    • Replies: 6
    • Views: 753
    Keith E.
    10-21-2023, 09:33 AM Go to last post

  22. What's the difference between a 97 225 promax and a 225 promax ss?

    Started by Liberty90, 10-12-2023 03:39 PM
    • Replies: 9
    • Views: 643
    tlwjkw
    10-20-2023, 01:21 AM Go to last post

  23. 1997 Two Stroke 150 EFI Oil Gear?

    Started by skraye, 10-15-2023 10:01 AM
    3 Attachment(s)
    • Replies: 9
    • Views: 451
    skraye
    10-19-2023, 10:57 AM Go to last post

  24. Dual plug land and sea 2.4 heads

    Started by 62 bugzilla, 09-25-2023 03:33 PM
    2 Pages •
    1 2
    8 Attachment(s)
    • Replies: 20
    • Views: 1,180
    Ryan140
    10-19-2023, 10:33 AM Go to last post

  25. Mercury Tech: Optimax Compressor Question

    Started by 4Speed, 10-01-2023 05:46 PM
    2 Attachment(s)
    • Replies: 9
    • Views: 634
    DieselDood
    10-19-2023, 08:43 AM Go to last post

  26. Blowout Ring welded Lower Unit????

    Started by ASPB, 10-17-2023 07:13 PM
    • Replies: 2
    • Views: 373
    ASPB
    10-18-2023, 07:51 PM Go to last post

  27. Mercury Tech: 3.0 head studs?

    Started by propshafted, 10-16-2023 07:11 AM
    1 Attachment(s)
    • Replies: 4
    • Views: 379
    propshafted
    10-18-2023, 06:40 AM Go to last post

  28. 2.4 200 Build for large aluminum boat

    Started by AlafanGT, 09-28-2023 10:21 AM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 18
    • Views: 978
    AlafanGT
    10-17-2023, 11:24 AM Go to last post

  29. 2.5 water pressure WOT

    Started by rs2.2, 10-14-2023 05:57 PM
    • Replies: 10
    • Views: 552
    25two.stroke
    10-17-2023, 11:03 AM Go to last post

  30. E-Tec oil recirculation

    Started by Paul, 10-16-2023 06:05 PM
    1 Attachment(s)
    • Replies: 1
    • Views: 218
    Paul
    10-16-2023, 06:08 PM Go to last post

  31. 1985 Mercury Black Max 150 V6 Compression test

    Started by dkpz64, 10-14-2023 03:20 PM
    1 Attachment(s)
    • Replies: 8
    • Views: 406
    Fishwhisper
    10-16-2023, 01:43 PM Go to last post

  32. Optimax fogging

    Started by David, 10-15-2023 08:26 PM
    1 Attachment(s)
    • Replies: 1
    • Views: 244
    Fishwhisper
    10-16-2023, 01:37 PM Go to last post

  33. Mercury Tech: Oil Gear Removal and Epoxy Fill Need Help With Finding Old Thread

    Started by Gordon02, 06-08-2019 12:25 AM
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 18
    • Views: 13,432
    tlwjkw
    10-16-2023, 11:09 AM Go to last post

  34. Starting an OX66 with no helm

    Started by joeyvco, 10-15-2023 07:24 AM
    • Replies: 1
    • Views: 179
    rock
    10-15-2023, 08:12 AM Go to last post

  35. Question Torque settings. 3.3l hpdi Yamaha

    Started by foodie, 10-14-2023 10:30 PM
    • Replies: 0
    • Views: 154
    foodie
    10-14-2023, 10:30 PM Go to last post

  36. Lower unit tools

    Started by Slowroll, 10-11-2023 07:19 PM
    • Replies: 2
    • Views: 301
    Slowroll
    10-14-2023, 06:18 PM Go to last post

  37. 2003 3.0L EFI No spark!

    Started by Dirty Dodge, 09-16-2023 05:43 PM
    • Replies: 5
    • Views: 458
    XstreamVking
    10-14-2023, 09:36 AM Go to last post

  38. Buckshot Racing 9-amp Stator

    Started by CI STV, 10-14-2023 02:54 AM
    1 Attachment(s)
    • Replies: 0
    • Views: 230
    CI STV
    10-14-2023, 02:54 AM Go to last post

  39. 5 Petal or 7 Petal Reeds for High RPM on Merc Drag Motor

    Started by CI STV, 02-03-2022 10:31 AM
    4 Pages •
    1 2 3 4
    9 Attachment(s)
    • Replies: 47
    • Views: 3,343
    patchesII
    10-13-2023, 06:55 PM Go to last post

  40. Homemade offshore mid.

    Started by skialot2, 08-22-2023 01:57 AM
    16 Attachment(s)
    • Replies: 14
    • Views: 1,386
    skialot2
    10-13-2023, 05:08 PM Go to last post
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