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Forum: Four Stroke and Direct Injected Two Stroke Engines

Low-emissions outboard engines.

Sponsored by: DBR - Dave Bush Racing

  1. Sticky Thread Sticky: ECDBA Emission performance stock.....

    Started by E-tec1, 11-09-2008 11:30 AM
    3 Pages •
    1 2 3
    1 Attachment(s)
    • Replies: 37
    • Views: 59,850
    cmn
    06-28-2015, 03:01 PM Go to last post

  1. 2 Stroke is performance King

    Started by Lake X Kid, 02-11-2023 05:10 PM
    1 Attachment(s)
    • Replies: 12
    • Views: 1,095
    MrG
    05-25-2023, 12:44 PM Go to last post

  2. 300x

    Started by Tooned In, 05-15-2023 04:18 PM
    • Replies: 0
    • Views: 89
    Tooned In
    05-15-2023, 04:18 PM Go to last post

  3. Mercury 60 4S

    Started by slowJEEP, 02-02-2023 02:23 PM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 27
    • Views: 992
    derekfl
    05-11-2023, 02:46 PM Go to last post

  4. Powerhead change

    Started by Scrutcher, 04-24-2023 06:22 AM
    • Replies: 2
    • Views: 312
    XstreamVking
    04-28-2023, 06:45 AM Go to last post

  5. Lower unit ID

    Started by fischnrod, 03-18-2020 06:35 PM
    • Replies: 1
    • Views: 555
    SPD
    04-20-2023, 12:16 PM Go to last post

  6. Looking for a 1999 evinrude ficht emm

    Started by davepnola, 04-12-2020 10:39 PM
    2 Attachment(s)
    • Replies: 4
    • Views: 3,525
    SPD
    04-20-2023, 12:10 PM Go to last post

  7. buying a 175 merc optimax pro xs. on boat but not rigged. what all do i need?

    Started by derekfl, 03-26-2023 06:52 AM
    • Replies: 7
    • Views: 246
    Onetime
    03-29-2023, 10:06 AM Go to last post

  8. Any advice to share? 2017 Verado 250HP. Looking for a 300HP PCM

    Started by Scoob, 02-05-2023 01:11 PM
    • Replies: 2
    • Views: 307
    Scoob
    02-06-2023, 11:59 PM Go to last post

  9. Yamaha F50/F60 difference.

    Started by Mark Poole ModVP, 01-13-2023 03:08 PM
    1 Attachment(s)
    • Replies: 3
    • Views: 424
    slowJEEP
    02-02-2023, 11:36 AM Go to last post

  10. Yamaha HPDI build/port work (let's talk port timing)

    Started by canuckr, 02-13-2021 12:04 PM
    4 Pages •
    1 2 3 4
    34 Attachment(s)
    • Replies: 46
    • Views: 6,339
    MrG
    01-14-2023, 12:33 PM Go to last post

  11. 250 ProXS Tuner

    Started by clayc, 06-26-2022 07:41 PM
    • Replies: 10
    • Views: 1,063
    MrG
    01-14-2023, 11:29 AM Go to last post

  12. E tec 250 powerhead on ficht midsection

    Started by Tobb1, 07-19-2018 12:59 PM
    • Replies: 10
    • Views: 1,465
    MrG
    01-14-2023, 11:21 AM Go to last post

  13. Optimax flywheel dampener

    Started by Promaxin, 12-28-2022 02:58 AM
    • Replies: 3
    • Views: 468
    CUDA
    01-14-2023, 06:47 AM Go to last post

  14. Aftermarket injectors

    Started by bakerfreak, 08-25-2022 12:00 PM
    • Replies: 7
    • Views: 1,202
    stoker2001
    12-10-2022, 11:56 PM Go to last post

  15. Easiest way to use ddt on engine off boat

    Started by LOSTINJ, 11-24-2022 09:25 AM
    1 Attachment(s)
    • Replies: 10
    • Views: 806
    LOSTINJ
    11-26-2022, 09:54 PM Go to last post

  16. 300xs Fluctuating fuel burn

    Started by CPC, 11-15-2022 08:32 AM
    • Replies: 2
    • Views: 344
    HydroSkreamin
    11-22-2022, 07:53 PM Go to last post

  17. Hydro-tec tuner for 300xs ?

    Started by LOSTINJ, 10-30-2022 08:08 AM
    • Replies: 2
    • Views: 566
    LOSTINJ
    11-20-2022, 05:48 PM Go to last post

  18. Merc 300R Fuel Consumption

    Started by Hebert519, 08-03-2022 12:35 PM
    2 Pages •
    1 2
    • Replies: 22
    • Views: 2,603
    Pulsare2400
    10-29-2022, 10:01 AM Go to last post

  19. 300 promax to 300xs question

    Started by spearhunter7, 06-03-2013 05:21 PM
    3 Pages •
    1 2 3
    2 Attachment(s)
    • Replies: 34
    • Views: 6,067
    Todd D
    10-24-2022, 11:59 AM Go to last post

  20. 3.3 conversion to 3 ltr heads

    Started by MrG, 06-20-2022 10:28 AM
    • Replies: 1
    • Views: 566
    Affromax
    09-10-2022, 11:11 AM Go to last post

  21. Recall from mercury on some of.the new 225 and 250 XS four strokes

    Started by XstreamVking, 08-30-2022 06:03 AM
    • Replies: 1
    • Views: 591
    Jamie Nichols
    09-08-2022, 09:13 PM Go to last post

  22. Optimax Air Injectors

    Started by clayc, 07-15-2022 11:03 AM
    3 Pages •
    1 2 3
    • Replies: 43
    • Views: 3,511
    ChrisCarsonMarine
    09-08-2022, 10:17 AM Go to last post

  23. Spark Test Gap

    Started by clayc, 08-30-2022 05:30 PM
    • Replies: 1
    • Views: 346
    rgsauger
    08-30-2022, 11:41 PM Go to last post

  24. 2013 300XS sudden loss of power/rpm

    Started by Lake WI Steve, 08-03-2022 09:19 PM
    • Replies: 8
    • Views: 1,308
    ChrisCarsonMarine
    08-27-2022, 02:03 PM Go to last post

  25. 150 optimax issues

    Started by 71greyhound, 08-11-2022 02:15 PM
    optimax
    • Replies: 14
    • Views: 1,370
    71greyhound
    08-16-2022, 06:16 PM Go to last post

  26. BRC / Rotax /Johnson outboard ?

    Started by theoldwizard, 07-31-2011 08:44 PM
    • Replies: 9
    • Views: 2,484
    FUJIMO
    08-14-2022, 04:50 PM Go to last post

  27. Wink Looking for 300xs Service Manual

    Started by mackey147, 08-05-2022 07:38 AM
    • Replies: 0
    • Views: 222
    mackey147
    08-05-2022, 07:38 AM Go to last post

  28. New v8 300proxs running problem

    Started by Boozin909, 07-03-2022 06:13 PM
    2 Pages •
    1 2
    • Replies: 15
    • Views: 1,386
    David
    07-30-2022, 03:31 PM Go to last post

  29. E15 in Etec?

    Started by doug7488, 05-27-2022 11:29 AM
    • Replies: 6
    • Views: 811
    obrien
    07-26-2022, 09:25 PM Go to last post

  30. Optimax V-6 3.0L 225 vs. Four Stroke V-6 3.4L 225 ??

    Started by irishcreamer, 06-26-2022 05:20 PM
    • Replies: 2
    • Views: 478
    RSWORDS
    07-25-2022, 08:22 PM Go to last post

  31. yamaha F150 balance shaft delete

    Started by davepnola, 07-12-2022 10:15 PM
    • Replies: 6
    • Views: 649
    cali kid
    07-25-2022, 02:53 PM Go to last post

  32. Mercury 300xs HT tuner + poppet valve diverter?

    Started by darkdream, 12-10-2020 05:07 AM
    2 Attachment(s)
    • Replies: 4
    • Views: 5,576
    darkdream
    07-06-2022, 10:28 AM Go to last post

  33. 3 liter water pump problem

    Started by boostalmighty, 06-29-2022 09:30 AM
    • Replies: 6
    • Views: 534
    boostalmighty
    07-06-2022, 08:27 AM Go to last post

  34. 2000 Optimax 200hp water out upper motor mount area.

    Started by Audiofn, 07-03-2022 09:47 PM
    • Replies: 0
    • Views: 261
    Audiofn
    07-03-2022, 09:47 PM Go to last post

  35. Abort factory breakin mode with ddt

    Started by Stevebbc, 06-24-2022 03:17 PM
    • Replies: 2
    • Views: 384
    kellytheaker
    06-26-2022, 06:03 AM Go to last post

  36. HPDI high-pressure pump and injector cleaning?

    Started by deCler, 05-04-2022 09:42 PM
    • Replies: 3
    • Views: 513
    InjectorService
    06-21-2022, 04:55 PM Go to last post

  37. 225 HPDI rebuild

    Started by FORBESAUTO, 02-23-2019 07:38 PM
    10 Pages •
    1 2 3 4 5 6 7 8 9 10
    73 Attachment(s)
    • Replies: 143
    • Views: 37,153
    canuckr
    06-18-2022, 04:31 AM Go to last post

  38. Thumbs up 21 Liberator 300R Video Test

    Started by Speed Jr., 05-06-2022 08:19 AM
    10 Attachment(s)
    • Replies: 14
    • Views: 1,457
    Speed Jr.
    05-24-2022, 09:21 PM Go to last post

  39. 300R Fourstroke Oil Capacity

    Started by d2kstang, 05-10-2022 12:31 PM
    • Replies: 4
    • Views: 561
    d2kstang
    05-11-2022, 06:27 AM Go to last post

  40. 250 ProXS oil leaking

    Started by boatn70, 05-05-2022 08:27 PM
    • Replies: 1
    • Views: 401
    Davidlake
    05-06-2022, 02:39 PM Go to last post
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