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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
    3 Attachment(s)
    • Replies: 74
    • Views: 206,406
    keefallan
    09-20-2020, 11:40 AM Go to last post

  1. Carb vs EFI ?

    Started by skialot2, 09-07-2024 11:47 PM
    3 Pages •
    1 2 3
    10 Attachment(s)
    • Replies: 40
    • Views: 2,710
    skialot2
    Yesterday, 11:44 PM Go to last post

  2. 3.0 ProMax cylinder heads?

    Started by hooken203, Yesterday 08:20 AM
    • Replies: 2
    • Views: 135
    hooken203
    Yesterday, 09:27 PM Go to last post

  3. Mercury Tech: Machining and port grinding ,playing around machining. Please post your pics!

    Started by Zoomba, 01-30-2018 01:11 AM
    2 Pages •
    1 2
    cutting heads grinding, porting maching 18 Attachment(s)
    • Replies: 27
    • Views: 3,067
    OnPad
    Yesterday, 04:09 PM Go to last post

  4. Trailering Recommendations

    Started by norcalLmo, 01-10-2025 08:44 AM
    1 Attachment(s)
    • Replies: 4
    • Views: 505
    4Speed
    Yesterday, 07:41 AM Go to last post

  5. Circlip tool?

    Started by mercrazy, Yesterday 06:20 AM
    • Replies: 0
    • Views: 85
    mercrazy
    Yesterday, 06:20 AM Go to last post

  6. 2.5 135HP Mercury cylinder head volume

    Started by Carter Powell, 01-11-2025 12:45 PM
    • Replies: 2
    • Views: 170
    tlwjkw
    Yesterday, 03:02 AM Go to last post

  7. 2.4 BP EFI Front on 2.5 Promax 225 block

    Started by rjdubiel, 01-10-2025 10:18 AM
    2 Attachment(s)
    • Replies: 6
    • Views: 550
    tlwjkw
    Yesterday, 02:56 AM Go to last post

  8. Upper Motor Mounts

    Started by Glastron1987, 01-11-2025 03:57 PM
    • Replies: 2
    • Views: 168
    25two.stroke
    01-11-2025, 07:00 PM Go to last post

  9. 300x rev limiter

    Started by Wild Bill, 01-11-2025 03:49 PM
    • Replies: 1
    • Views: 138
    skialot2
    01-11-2025, 06:54 PM Go to last post

  10. 300x reeds

    Started by Wild Bill, 01-11-2025 04:00 PM
    • Replies: 0
    • Views: 87
    Wild Bill
    01-11-2025, 04:00 PM Go to last post

  11. CR Pair of 2017 Opti 150's with 700 hours

    Started by Sutphil, 01-10-2025 10:00 AM
    • Replies: 1
    • Views: 264
    25two.stroke
    01-10-2025, 02:58 PM Go to last post

  12. rev4 props

    Started by KIRCHNER, 01-09-2025 08:25 AM
    • Replies: 4
    • Views: 462
    KIRCHNER
    01-09-2025, 10:47 PM Go to last post

  13. Yamaha Tech: Yamaha jet chart?

    Started by powerabout, 12-18-2024 03:58 AM
    2 Attachment(s)
    • Replies: 10
    • Views: 983
    powerabout
    01-09-2025, 02:01 AM Go to last post

  14. steering wheel sizes

    Started by KIRCHNER, 01-04-2025 08:34 PM
    • Replies: 3
    • Views: 445
    KIRCHNER
    01-07-2025, 09:56 PM Go to last post

  15. Sea Star 1.7 Helm vs 2.4 Helm

    Started by TLH101, 01-07-2025 02:28 PM
    • Replies: 2
    • Views: 216
    rjdubiel
    01-07-2025, 05:05 PM Go to last post

  16. Switchbox ?

    Started by mercrazy, 01-05-2025 05:11 PM
    • Replies: 1
    • Views: 295
    donmac
    01-07-2025, 07:34 AM Go to last post

  17. Nitrous on 2.5 Drag

    Started by CI STV, 12-09-2024 08:27 AM
    6 Pages •
    1 2 3 4 5 6
    30 Attachment(s)
    • Replies: 79
    • Views: 5,847
    CI STV
    01-06-2025, 11:39 PM Go to last post

  18. Ultrasonic cleaners. How good do they work?

    Started by skialot2, 12-31-2024 07:09 PM
    5 Attachment(s)
    • Replies: 3
    • Views: 554
    AlliStan
    01-06-2025, 09:02 PM Go to last post

  19. Chinese switch boxes?

    Started by mercrazy, 01-05-2025 05:14 PM
    • Replies: 2
    • Views: 346
    KIRCHNER
    01-06-2025, 07:38 PM Go to last post

  20. MERC 300XS FILTER CROSS REFERENCE (the small inline oil and fuel filters)

    Started by scott reierson, 01-05-2025 03:30 PM
    • Replies: 2
    • Views: 226
    scott reierson
    01-06-2025, 12:19 PM Go to last post

  21. Hot Foot Question

    Started by TLH101, 01-03-2025 07:46 PM
    3 Attachment(s)
    • Replies: 7
    • Views: 341
    TLH101
    01-05-2025, 08:16 AM Go to last post

  22. Gen 1 verado driveshaft material?

    Started by vbtravisd, 12-19-2024 09:48 PM
    • Replies: 1
    • Views: 311
    wolfgangb
    01-05-2025, 06:20 AM Go to last post

  23. Crank mains lubrication holes

    Started by NZ Sidewinder, 01-03-2025 03:14 PM
    5 Attachment(s)
    • Replies: 2
    • Views: 351
    NZ Sidewinder
    01-04-2025, 11:21 PM Go to last post

  24. 94 Mercury 2.5 efi

    Started by skatermike24, 01-02-2025 09:50 AM
    1 Attachment(s)
    • Replies: 3
    • Views: 320
    H2Okie
    01-04-2025, 09:51 PM Go to last post

  25. Lower unit gett stuck in gear

    Started by Aaronhl, 01-03-2025 09:32 PM
    • Replies: 3
    • Views: 274
    Aaronhl
    01-04-2025, 12:59 PM Go to last post

  26. trim tab location

    Started by KIRCHNER, 01-03-2025 07:08 PM
    2 Attachment(s)
    • Replies: 3
    • Views: 253
    JPEROG
    01-03-2025, 09:44 PM Go to last post

  27. Repeated stator failure - 260

    Started by 25two.stroke, 01-02-2025 12:14 AM
    • Replies: 5
    • Views: 417
    LakeFever
    01-02-2025, 08:33 PM Go to last post

  28. VST delete on a 300 xs OPTI

    Started by Tcatrett, 01-02-2025 11:13 AM
    • Replies: 2
    • Views: 179
    25two.stroke
    01-02-2025, 12:58 PM Go to last post

  29. School me on 2001 Mercury 200 DFI

    Started by norcalLmo, 12-30-2024 12:14 PM
    • Replies: 6
    • Views: 372
    Duro78
    01-01-2025, 09:57 PM Go to last post

  30. Hey SKIALOT I did some Black Friday shopping

    Started by Aaronhl, 11-30-2024 02:50 PM
    2 Pages •
    1 2
    17 Attachment(s)
    • Replies: 25
    • Views: 2,448
    Glastron1987
    01-01-2025, 07:15 PM Go to last post

  31. Void Filler

    Started by tabme, 12-29-2024 03:32 PM
    • Replies: 6
    • Views: 335
    LakeFever
    12-30-2024, 11:47 AM Go to last post

  32. Wiring ‘Kill Switch’ on a Merc I6….

    Started by SCT, 12-14-2024 05:53 PM
    1 Attachment(s)
    • Replies: 3
    • Views: 349
    scott reierson
    12-28-2024, 07:01 PM Go to last post

  33. Recommendations for where to go for boring/machine work? omc v4 crossflow(s)

    Started by leaky, 12-27-2024 01:40 PM
    1 Attachment(s)
    • Replies: 1
    • Views: 288
    James45157
    12-27-2024, 07:01 PM Go to last post

  34. 2005 2.5xs offshore

    Started by tabme, 12-26-2024 04:31 PM
    • Replies: 4
    • Views: 302
    tabme
    12-27-2024, 08:27 AM Go to last post

  35. top and bottom guide

    Started by ivlakeman, 12-10-2024 05:13 AM
    • Replies: 5
    • Views: 481
    NZ Sidewinder
    12-26-2024, 02:31 AM Go to last post

  36. Pluging gearcase intake holes.

    Started by skialot2, 12-16-2024 02:16 AM
    • Replies: 5
    • Views: 696
    Carter Powell
    12-22-2024, 01:09 PM Go to last post

  37. mercury trigger voltage

    Started by astro2000, 02-08-2008 09:08 PM
    3 Pages •
    1 2 3
    • Replies: 36
    • Views: 3,803
    25two.stroke
    12-21-2024, 04:17 PM Go to last post

  38. Dual tank fuel pump question.

    Started by Carter Powell, 12-16-2024 04:46 PM
    • Replies: 5
    • Views: 346
    donmac
    12-21-2024, 08:34 AM Go to last post

  39. Mercury Tech: Poor Idle & Stalling on 2001 Mercury 300X Motors!!

    Started by Hydrogasm, 01-26-2023 12:05 PM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 17
    • Views: 935
    donmac
    12-21-2024, 08:05 AM Go to last post

  40. 300xs

    Started by tabme, 12-19-2024 07:20 PM
    • Replies: 1
    • Views: 179
    Tcatrett
    12-19-2024, 07:56 PM Go to last post
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