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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
    • Replies: 37
    • Views: 63,659
    06-28-2015, 03:01 PM Go to last post
  1. Yamaha HPDI ECU Mods

    Started by lance, 03-04-2013 10:13 AM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 16,775
    11-23-2023, 10:10 PM Go to last post
  2. Optimax Fuel Rail

    Started by lowedown, 11-17-2023 05:34 PM
    • Replies: 4
    • Views: 267
    11-20-2023, 11:47 AM Go to last post
  3. Honda V8 350 HP

    Started by WaterZebra, 11-16-2023 11:04 AM
    • Replies: 0
    • Views: 140
    11-16-2023, 11:04 AM Go to last post
  4. Merc 300/450 air vents

    Started by Hebert519, 08-09-2023 03:25 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,998
    11-08-2023, 05:29 PM Go to last post
  5. BRP E Tec 250

    Started by Boosting, 11-02-2023 03:53 PM
    • Replies: 0
    • Views: 220
    11-02-2023, 03:53 PM Go to last post
  6. Evinrude 150 ficht

    Started by SRU, 10-21-2023 06:03 AM
    • Replies: 0
    • Views: 269
    10-21-2023, 06:03 AM Go to last post
  7. Chasing Yamaha HPDI 300 service manual

    Started by foodie, 10-09-2023 04:57 AM
    • Replies: 1
    • Views: 203
    10-18-2023, 06:33 AM Go to last post
  8. Hpdi medium pressure fuel filter alternative

    Started by foodie, 10-07-2023 05:26 AM
    • Replies: 0
    • Views: 106
    10-07-2023, 05:26 AM Go to last post
  9. 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
    • Replies: 48
    • Views: 7,168
    10-04-2023, 07:35 AM Go to last post
  10. Opti Fuel system rebuild kit?

    Started by DieselDood, 09-27-2023 04:28 PM
    • Replies: 1
    • Views: 231
    09-28-2023, 07:34 AM Go to last post
  11. Opti Computers

    Started by DieselDood, 09-26-2023 04:08 PM
    • Replies: 4
    • Views: 289
    09-27-2023, 08:33 AM Go to last post
  12. 225 Opti First fire

    Started by DieselDood, 09-20-2023 09:01 AM
    • Replies: 12
    • Views: 476
    09-23-2023, 04:10 PM Go to last post
  13. how the Optimax Multi-Point Oil Pump works

    Started by noli, 01-06-2019 08:59 AM
    • Replies: 6
    • Views: 6,580
    09-18-2023, 11:15 AM Go to last post
  14. 2000 Optimax 225 starts & Stalls

    Started by MadMat, 09-11-2023 01:55 AM
    • Replies: 4
    • Views: 263
    09-12-2023, 07:58 AM Go to last post
    • Replies: 0
    • Views: 117
    09-07-2023, 07:58 AM Go to last post
  15. Compressor rebuild on Optimax 135

    Started by littledoodie99, 08-10-2023 10:04 AM
    • Replies: 6
    • Views: 475
    08-16-2023, 08:49 PM Go to last post
  16. 2003 225 Optimax fuel/air problems

    Started by velox, 08-04-2023 10:19 AM
    225 optimax, direct fuel injection
    • Replies: 7
    • Views: 362
    08-06-2023, 11:23 AM Go to last post
    • Replies: 3
    • Views: 401
    08-05-2023, 02:24 PM Go to last post
  17. White Smoke/misfire optimax 250 xs 2003

    Started by Edgewater225, 05-29-2023 04:37 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,241
    07-30-2023, 12:04 PM Go to last post
  18. Mercury 60r

    Started by NZ Sidewinder, 07-11-2023 04:22 AM
    • Replies: 11
    • Views: 1,372
    07-27-2023, 07:24 AM Go to last post
  19. 300xs...possible compressor problem?

    Started by motuman, 07-20-2023 11:51 PM
    • Replies: 8
    • Views: 877
    07-23-2023, 01:10 PM Go to last post
  20. 2001 Yamaha 150 hpdi

    Started by traviss224, 07-20-2023 08:50 AM
    • Replies: 8
    • Views: 470
    07-20-2023, 12:34 PM Go to last post
  21. Mercury Dominates Big OB 4 Stroke Market

    Started by WaterZebra, 07-03-2023 10:21 PM
    • Replies: 8
    • Views: 1,309
    07-05-2023, 07:10 PM Go to last post
  22. Etec 2013 250 Hp

    Started by MrG, 06-13-2023 05:16 PM
    • Replies: 6
    • Views: 777
    06-18-2023, 06:29 AM Go to last post
  23. Optimax. Unplugged wire, plug it back in?

    Started by Edgewater225, 06-03-2023 02:26 PM
    • Replies: 5
    • Views: 493
    06-13-2023, 05:12 PM Go to last post
  24. 2 Stroke is performance King

    Started by Lake X Kid, 02-11-2023 05:10 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,825
    06-12-2023, 08:50 PM Go to last post
  25. 300x

    Started by Tooned In, 05-15-2023 04:18 PM
    • Replies: 0
    • Views: 296
    05-15-2023, 04:18 PM Go to last post
  26. Mercury 60 4S

    Started by slowJEEP, 02-02-2023 02:23 PM
    2 Pages
    1 2
    • Replies: 27
    • Views: 1,593
    05-11-2023, 02:46 PM Go to last post
  27. Powerhead change

    Started by Scrutcher, 04-24-2023 06:22 AM
    • Replies: 2
    • Views: 500
    04-28-2023, 06:45 AM Go to last post
  28. Lower unit ID

    Started by fischnrod, 03-18-2020 06:35 PM
    • Replies: 1
    • Views: 698
    04-20-2023, 12:16 PM Go to last post
  29. Looking for a 1999 evinrude ficht emm

    Started by davepnola, 04-12-2020 10:39 PM
    • Replies: 4
    • Views: 3,706
    04-20-2023, 12:10 PM Go to last post
    • Replies: 2
    • Views: 642
    02-06-2023, 11:59 PM Go to last post
  30. Yamaha F50/F60 difference.

    Started by Mark Poole ModVP, 01-13-2023 03:08 PM
    • Replies: 3
    • Views: 796
    02-02-2023, 11:36 AM Go to last post
  31. 250 ProXS Tuner

    Started by clayc, 06-26-2022 07:41 PM
    • Replies: 10
    • Views: 1,357
    01-14-2023, 11:29 AM Go to last post
  32. E tec 250 powerhead on ficht midsection

    Started by Tobb1, 07-19-2018 12:59 PM
    • Replies: 10
    • Views: 1,662
    01-14-2023, 11:21 AM Go to last post
  33. Optimax flywheel dampener

    Started by Promaxin, 12-28-2022 02:58 AM
    • Replies: 3
    • Views: 630
    01-14-2023, 06:47 AM Go to last post
  34. Aftermarket injectors

    Started by bakerfreak, 08-25-2022 12:00 PM
    • Replies: 7
    • Views: 1,448
    12-10-2022, 11:56 PM Go to last post
  35. Easiest way to use ddt on engine off boat

    Started by LOSTINJ, 11-24-2022 09:25 AM
    • Replies: 10
    • Views: 987
    11-26-2022, 09:54 PM Go to last post

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