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Threads 1 to 40 of 161

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: 128,393
    keefallan
    09-20-2020, 11:40 AM Go to last post

  2. Sticky Thread Sticky: Alisyn Oil Promotion - Free Shipping On All Orders!

    Started by Scream And Fly, 02-03-2006 04:03 PM
    5 Pages •
    1 2 3 4 5
    1 Attachment(s)
    • Replies: 73
    • Views: 126,819
    FORBESAUTO
    08-15-2020, 04:04 PM Go to last post

  1. 2.4 / 2.5 2 Piece Adaptor Wing Plates

    Started by chubsta, Yesterday 09:59 PM
    • Replies: 0
    • Views: 32
    chubsta
    Yesterday, 09:59 PM Go to last post

  2. Lower Unit Drain Plug Seals

    Started by 97mirage, Yesterday 06:58 PM
    2 Attachment(s)
    • Replies: 7
    • Views: 72
    Jim Speros
    Yesterday, 08:40 PM Go to last post

  3. Power steering

    Started by Guppy, Yesterday 07:56 PM
    • Replies: 0
    • Views: 26
    Guppy
    Yesterday, 07:56 PM Go to last post

  4. Out Of Water Testing / Muffs / Backpressure

    Started by InjectorService, 03-21-2023 12:21 PM
    • Replies: 12
    • Views: 300
    25two.stroke
    Yesterday, 03:55 PM Go to last post

  5. 300XS Compressor Water Inlet Hose

    Started by Davidlake, Yesterday 01:02 PM
    1 Attachment(s)
    • Replies: 1
    • Views: 44
    boostalmighty
    Yesterday, 01:44 PM Go to last post

  6. Mercury Tech: NEED 300x pistons

    Started by TUFISH, Yesterday 08:45 AM
    • Replies: 0
    • Views: 43
    TUFISH
    Yesterday, 08:45 AM Go to last post

  7. Keel repair advice needed

    Started by Spaceman Spiff, 03-22-2023 03:19 PM
    2 Attachment(s)
    • Replies: 5
    • Views: 176
    WaterZebra
    03-22-2023, 09:46 PM Go to last post

  8. Can anyone explain pinion height?

    Started by 25two.stroke, 03-14-2023 01:39 PM
    2 Attachment(s)
    • Replies: 8
    • Views: 255
    LakeFever
    03-22-2023, 02:51 PM Go to last post

  9. Can a 30” Yamaha 300 4T lower unit input shaft be cut down to 25” and be resplined ?

    Started by ratman67, 03-22-2023 12:04 PM
    • Replies: 0
    • Views: 35
    ratman67
    03-22-2023, 12:04 PM Go to last post

  10. 260 ecu

    Started by Lurk lurqvest, 03-20-2023 03:46 AM
    • Replies: 2
    • Views: 158
    Lurk lurqvest
    03-21-2023, 07:16 AM Go to last post

  11. Mercury Wmh 34/39 Carb black cap/plug

    Started by Jay0016, 03-17-2023 07:46 PM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 18
    • Views: 346
    Jay0016
    03-20-2023, 06:40 PM Go to last post

  12. smartcraft to lowrance

    Started by rock, 03-19-2023 03:14 PM
    • Replies: 1
    • Views: 79
    25two.stroke
    03-20-2023, 01:40 PM Go to last post

  13. 300xs

    Started by wideglide55, 03-18-2023 10:54 AM
    • Replies: 4
    • Views: 213
    wideglide55
    03-19-2023, 02:25 PM Go to last post

  14. Jersey Speed Skiffs, engines, gears, caviatation etc.

    Started by User Name, 03-17-2023 06:13 PM
    • Replies: 8
    • Views: 191
    rgsauger
    03-18-2023, 09:41 PM Go to last post

  15. F - N - R Gear shift issue

    Started by Aaronhl, 03-16-2023 10:09 PM
    • Replies: 10
    • Views: 303
    David - WI
    03-17-2023, 06:47 PM Go to last post

  16. Mercury Tech: The Saga Continues... High water pressure causing overheating. 2.5

    Started by DieselDood, 03-13-2023 01:35 PM
    • Replies: 8
    • Views: 405
    rock
    03-17-2023, 03:05 PM Go to last post

  17. What coil number for a regular 225 opti?

    Started by XstreamVking, 03-07-2023 08:02 AM
    • Replies: 9
    • Views: 193
    InjectorService
    03-17-2023, 10:31 AM Go to last post

  18. VST delete

    Started by xpressman al, 06-21-2011 06:43 PM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 21
    • Views: 4,436
    tunnelmike
    03-16-2023, 07:29 AM Go to last post

  19. Sportmaster Driveshaft part #

    Started by stoneman, 03-15-2023 09:32 AM
    • Replies: 3
    • Views: 145
    Hydro2.5
    03-15-2023, 11:45 PM Go to last post

  20. Wood for trailer bunks…

    Started by rgsauger, 03-10-2023 12:09 AM
    2 Pages •
    1 2
    • Replies: 26
    • Views: 760
    Glastron1987
    03-15-2023, 06:31 PM Go to last post

  21. 220 xri

    Started by Glastron1987, 03-13-2023 08:46 PM
    • Replies: 11
    • Views: 319
    Glastron1987
    03-15-2023, 05:30 PM Go to last post

  22. Anyone have problems with water in fuel

    Started by CUDA, 03-13-2023 11:03 PM
    • Replies: 2
    • Views: 146
    rgsauger
    03-14-2023, 10:34 PM Go to last post

  23. Solid Mounts

    Started by InjectorService, 03-02-2023 09:26 PM
    • Replies: 11
    • Views: 467
    Chaz
    03-12-2023, 11:11 PM Go to last post

  24. How can I make my boat a little faster?

    Started by Spaceman Spiff, 02-02-2023 08:56 PM
    8 Pages •
    1 2 3 4 5 6 7 8
    5 Attachment(s)
    • Replies: 117
    • Views: 5,027
    David - WI
    03-12-2023, 02:41 PM Go to last post

  25. GT 150 Piston Ring Gap

    Started by StevenG10, 07-24-2014 06:28 PM
    • Replies: 7
    • Views: 415
    SJD1974
    03-12-2023, 01:48 PM Go to last post

  26. 2.5 drag crank polish

    Started by hollywood120, 03-05-2023 07:38 AM
    1 Attachment(s)
    • Replies: 2
    • Views: 306
    hollywood120
    03-10-2023, 04:55 PM Go to last post

  27. Sportmaster 3.0 speedi sleeve

    Started by Canon20xrd, 03-03-2023 02:08 PM
    • Replies: 9
    • Views: 286
    Canon20xrd
    03-08-2023, 10:44 PM Go to last post

  28. Mercury Tech: All my flywheels are junk!

    Started by Smalltownbassin, 02-19-2023 07:50 AM
    16amp, flywheel, mercury, refurbish, repair 1 Attachment(s)
    • Replies: 8
    • Views: 511
    25two.stroke
    03-08-2023, 08:32 PM Go to last post

  29. How watertight is the impeller housing of a Merc

    Started by killerpirate, 03-05-2023 06:14 PM
    4 Attachment(s)
    • Replies: 8
    • Views: 315
    25two.stroke
    03-07-2023, 05:55 PM Go to last post

  30. 2.4L pistons

    Started by 25two.stroke, 03-04-2023 02:07 PM
    1 Attachment(s)
    • Replies: 8
    • Views: 364
    25two.stroke
    03-07-2023, 12:39 PM Go to last post

  31. Mercury Tech: 225 EFI injector flow rate?

    Started by racinfast002, 09-15-2019 03:08 PM
    4 Pages •
    1 2 3 4
    4 Attachment(s)
    • Replies: 46
    • Views: 2,495
    Chaz
    03-06-2023, 10:06 PM Go to last post

  32. serial # lookup help

    Started by largecar91, 03-06-2023 03:00 PM
    • Replies: 4
    • Views: 97
    largecar91
    03-06-2023, 03:48 PM Go to last post

  33. OMC Tech: V4 Crossflow 100hp, 125hp identification and thoughts.

    Started by Rabbo, 03-02-2023 02:49 PM
    6 Attachment(s)
    • Replies: 3
    • Views: 162
    Rabbo
    03-06-2023, 12:53 PM Go to last post

  34. OMC Tech: Identify Johnson 225HO Powerhead Without Pulling Head?

    Started by 225ho, 02-16-2023 05:26 PM
    • Replies: 4
    • Views: 262
    Instigator
    03-06-2023, 07:59 AM Go to last post

  35. Merc H2O Water Separator W/O sender

    Started by scott reierson, 03-05-2023 04:17 PM
    • Replies: 0
    • Views: 77
    scott reierson
    03-05-2023, 04:17 PM Go to last post

  36. Help identify Merc lower unit!

    Started by drdriver, 03-05-2023 01:31 PM
    3 Attachment(s)
    • Replies: 1
    • Views: 148
    Jim Speros
    03-05-2023, 03:49 PM Go to last post

  37. 1998 Promax 3.0 Sportmaster Gearl Oil - High Performance or Extreme Performance?

    Started by Basnova, 03-05-2023 11:28 AM
    • Replies: 0
    • Views: 79
    Basnova
    03-05-2023, 11:28 AM Go to last post

  38. 2l exhaust chest work/porting

    Started by SJD1974, 01-31-2023 06:55 PM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 26
    • Views: 1,056
    SJD1974
    03-05-2023, 11:13 AM Go to last post

  39. 1980 mercury 800 Tachometer

    Started by fatlenny, 03-05-2023 06:38 AM
    • Replies: 0
    • Views: 66
    fatlenny
    03-05-2023, 06:38 AM Go to last post

  40. Did OMC have "pressure backed piston rings"?

    Started by David, 01-24-2023 12:41 PM
    2 Pages •
    1 2
    4 Attachment(s)
    • Replies: 23
    • Views: 989
    David - WI
    03-04-2023, 04:12 PM Go to last post
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