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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
    5 Pages
    1 2 3 4 5
    • Replies: 74
    • Views: 183,626
    09-20-2020, 11:40 AM Go to last post
  1. 1991 Mercury 200XRI voltage and idle issue

    Started by 88MCPS200, 08-13-2023 09:29 PM
    • Replies: 6
    • Views: 417
    Today, 11:23 AM Go to last post
  2. Pro Max 2.5 two stroke oil

    Started by creeljd, Yesterday 05:18 PM
    • Replies: 6
    • Views: 174
    Today, 10:20 AM Go to last post
  3. Racheting/ non racheting gears and dogs.

    Started by NZ Sidewinder, 02-23-2024 04:27 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 377
    02-24-2024, 07:31 PM Go to last post
  4. main jets

    Started by KIRCHNER, 02-15-2024 05:58 PM
    • Replies: 7
    • Views: 477
    02-23-2024, 06:57 PM Go to last post
  5. Gaskets for a Rebuild

    Started by gguertin145, 02-23-2024 04:01 PM
    • Replies: 3
    • Views: 155
    02-23-2024, 06:37 PM Go to last post
  6. mid section repair

    Started by gguertin145, 02-21-2024 03:03 PM
    3 Pages
    1 2 3
    • Replies: 30
    • Views: 905
    02-23-2024, 10:25 AM Go to last post
  7. 98 RON non ethanol vs 95 RON E10

    Started by Toffen, 02-22-2024 03:09 PM
    • Replies: 1
    • Views: 134
    02-23-2024, 10:12 AM Go to last post
  8. Broken 2.5L 1.87 box

    Started by NZ Sidewinder, 02-16-2024 05:38 PM
    • Replies: 12
    • Views: 579
    02-23-2024, 03:47 AM Go to last post
  9. Which fuel pump to replace the VST? 225 ProMax

    Started by ssv1761982, 02-19-2024 09:40 AM
    • Replies: 7
    • Views: 393
    02-23-2024, 02:12 AM Go to last post
  10. XRI vs EFI

    Started by Glastron1987, 02-17-2024 08:14 AM
    • Replies: 11
    • Views: 505
    02-22-2024, 04:46 PM Go to last post
  11. Changing out tilt motor on V4 crossflow.

    Started by Gilera, 02-12-2024 10:18 PM
    • Replies: 2
    • Views: 189
    02-22-2024, 11:38 AM Go to last post
  12. Merc 280 trigger wheel?

    Started by malexie, 01-27-2024 10:24 PM
    • Replies: 5
    • Views: 571
    02-22-2024, 09:55 AM Go to last post
  13. Mercury Tech: Cracks in 2.5L Mercury 20" Offshore Midsection

    Started by CDN27, 02-20-2024 05:46 PM
    • Replies: 1
    • Views: 177
    02-20-2024, 07:59 PM Go to last post
  14. Mercury Tech: Optimax Maintenance at 100 hours

    Started by 4Speed, 11-18-2023 04:07 PM
    • Replies: 6
    • Views: 385
    02-18-2024, 12:57 PM Go to last post
  15. Air Traps on a Hydroplane

    Started by Spaceman Spiff, 02-07-2024 10:39 PM
    • Replies: 9
    • Views: 570
    02-18-2024, 11:54 AM Go to last post
  16. Mercury 300X Oil Pump Prime

    Started by NeedlesRat, 02-15-2024 02:27 AM
    • Replies: 1
    • Views: 143
    02-18-2024, 10:17 AM Go to last post
  17. Fuel tank fitting causing restriction?

    Started by Gilera, 02-17-2024 03:18 PM
    • Replies: 1
    • Views: 144
    02-17-2024, 03:59 PM Go to last post
  18. Northeast Machine shop services

    Started by noots, 02-08-2024 02:24 PM
    • Replies: 6
    • Views: 433
    02-16-2024, 03:15 AM Go to last post
  19. over-charging

    Started by KIRCHNER, 02-12-2024 06:49 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 835
    02-15-2024, 01:22 PM Go to last post
  20. 2.4 sleeve cracked?

    Started by Tforman, 02-08-2024 11:15 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 742
    02-15-2024, 05:42 AM Go to last post
  21. 300x block question?

    Started by malexie, 01-17-2024 09:57 PM
    • Replies: 5
    • Views: 815
    02-14-2024, 11:51 PM Go to last post
  22. Water pressure in a sportmaster at 60MPH

    Started by Carter Powell, 02-03-2024 08:54 PM
    • Replies: 11
    • Views: 620
    02-14-2024, 10:56 AM Go to last post
  23. Mercury Tech: Mercury 2.5 260 Engine builders Opinion / Advice needed.

    Started by 4-MULA-V, 02-11-2024 01:11 PM
    • Replies: 9
    • Views: 548
    02-13-2024, 01:32 PM Go to last post
  24. cold starts

    Started by KIRCHNER, 01-14-2024 05:17 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,337
    02-13-2024, 12:44 PM Go to last post
  25. 1989 Mariner 175Ski

    Started by Glastron1987, 07-27-2023 08:23 PM
    10 Pages
    1 2 3 4 5 6 7 8 9 10
    • Replies: 148
    • Views: 12,574
    02-12-2024, 11:00 PM Go to last post
  26. uflex helm

    Started by KIRCHNER, 01-19-2024 12:42 PM
    • Replies: 9
    • Views: 530
    02-12-2024, 05:58 PM Go to last post
  27. Mercury Tech: Optimax troubleshooting

    Started by Haggus900, 02-01-2024 04:15 AM
    optimax issues
    • Replies: 8
    • Views: 1,486
    02-11-2024, 12:34 PM Go to last post
  28. Mercury 3.0L EFI Slide Intake Wanted !!

    Started by Amatuer, 02-11-2024 01:19 AM
    • Replies: 2
    • Views: 125
    02-11-2024, 06:35 AM Go to last post
  29. 2.4 chrome bore decking?

    Started by Tforman, 02-01-2024 10:36 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,098
    02-10-2024, 06:19 PM Go to last post
  30. Mercury Tech: 1978 2.4 powerhead swap. What fits?

    Started by Cheifjunk, 02-09-2024 06:59 PM
    • Replies: 5
    • Views: 221
    02-10-2024, 12:10 PM Go to last post
  31. Mercury Tech: Mercury 225 Optimax Surging

    Started by DieselDood, 02-03-2024 11:36 PM
    • Replies: 13
    • Views: 513
    02-09-2024, 05:54 PM Go to last post
    • Replies: 9
    • Views: 1,906
    02-09-2024, 06:37 AM Go to last post
  32. 2000 200HP Merc. 2.5

    Started by skialot2, 11-09-2023 02:42 PM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 4,427
    02-08-2024, 04:16 PM Go to last post
  33. Bow lift struggle

    Started by NRAINES38, 02-04-2024 06:04 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 2,507
    02-08-2024, 12:14 PM Go to last post
  34. Rebuilding 1994 225 3l for bass boat

    Started by gguertin145, 02-05-2024 02:51 PM
    • Replies: 4
    • Views: 239
    02-06-2024, 03:22 PM Go to last post
  35. Mercury Tech: Cylinder replating

    Started by madoxusa, 01-26-2024 04:04 PM
    • Replies: 11
    • Views: 2,112
    02-02-2024, 12:35 PM Go to last post
  36. Mercury Tech: Help with 2.5 200 1996 identification

    Started by USAJOHNSON, 02-01-2024 12:51 PM
    • Replies: 2
    • Views: 334
    02-01-2024, 10:40 PM Go to last post
  37. Top main bearing life extender?

    Started by WATERWINGS, 08-18-2012 12:22 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 3,280
    02-01-2024, 05:46 PM Go to last post
  38. Mercury Tech: Hole size for one piece

    Started by FAST RALLY SPORT, 01-31-2024 12:40 PM
    • Replies: 4
    • Views: 369
    02-01-2024, 02:05 AM Go to last post

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