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Forum: Four Stroke and Direct Injected Two Stroke Engines

Low-emissions outboard engines.

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  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: 69,383
    06-28-2015, 03:01 PM Go to last post
  1. 2005 Merc 300x rebuild

    Started by Mbenji01, 01-16-2025 08:54 PM
    • Replies: 1
    • Views: 226
    01-16-2025, 08:57 PM Go to last post
  2. Optimax Air Injectors

    Started by clayc, 07-15-2022 11:03 AM
    4 Pages
    1 2 3 4
    • Replies: 46
    • Views: 6,624
    01-07-2025, 08:42 AM Go to last post
  3. Older Optimax 150

    Started by Glastron1987, 12-29-2024 07:27 PM
    • Replies: 5
    • Views: 459
    01-04-2025, 12:39 PM Go to last post
  4. Anyone running a Brp 3 cyl 150?

    Started by powerabout, 08-18-2024 08:27 PM
    • Replies: 4
    • Views: 667
    01-02-2025, 05:17 PM Go to last post
  5. Mercury 60 4S

    Started by slowJEEP, 02-02-2023 02:23 PM
    3 Pages
    1 2 3
    • Replies: 30
    • Views: 3,435
    12-03-2024, 01:25 PM Go to last post
  6. 225 Optimax Pro XS performance.

    Started by Bassfisher360, 11-24-2024 09:19 AM
    • Replies: 6
    • Views: 628
    11-24-2024, 07:09 PM Go to last post
  7. Optimax 150 feedback wanted…

    Started by Euroski, 09-22-2024 10:40 AM
    • Replies: 1
    • Views: 633
    11-24-2024, 09:17 AM Go to last post
  8. 300XS alternator problems

    Started by JR IN JAX, 10-15-2024 06:49 PM
    • Replies: 3
    • Views: 874
    10-22-2024, 05:39 AM Go to last post
  9. Fastest 4 stroke 40hp?

    Started by yakfish, 09-08-2024 05:01 PM
    • Replies: 0
    • Views: 299
    09-08-2024, 05:01 PM Go to last post
  10. 1993 XRi 200hp no fuel to cylinders

    Started by Vieacinq, 08-16-2024 07:34 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 895
    08-24-2024, 05:37 AM Go to last post
    • Replies: 1
    • Views: 454
    08-19-2024, 02:06 PM Go to last post
  11. Optimax: What to do after being submerged

    Started by Kevin Turner, 06-08-2024 06:06 PM
    • Replies: 8
    • Views: 1,241
    06-18-2024, 11:42 AM Go to last post
  12. Yamaha SHO Solid mounts and lower unit mods

    Started by xb03fs, 02-18-2015 08:32 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,916
    05-31-2024, 03:03 PM Go to last post
    • Replies: 4
    • Views: 524
    05-13-2024, 07:55 AM Go to last post
  13. 25 Tohatsu

    Started by Thumper121671, 05-09-2024 04:16 PM
    • Replies: 0
    • Views: 338
    05-09-2024, 04:16 PM Go to last post
  14. Optimax Air Injector Connector

    Started by MadMat, 04-27-2024 03:16 AM
    • Replies: 2
    • Views: 499
    05-04-2024, 05:34 PM Go to last post
  15. Mercury Racing Verado L4 200

    Started by Han, 03-18-2024 12:52 AM
    • Replies: 4
    • Views: 689
    04-11-2024, 03:22 PM Go to last post
  16. Mercury Marine ECU repair

    Started by Simon, 03-14-2024 04:17 PM
    • Replies: 3
    • Views: 648
    03-18-2024, 01:28 PM Go to last post
  17. Hpdi medium pressure fuel filter alternative

    Started by foodie, 10-07-2023 05:26 AM
    • Replies: 1
    • Views: 561
    02-15-2024, 09:24 AM Go to last post
  18. Mercury Dominates Big OB 4 Stroke Market

    Started by WaterZebra, 07-03-2023 10:21 PM
    • Replies: 9
    • Views: 2,527
    01-28-2024, 03:13 PM Go to last post
  19. I think Mercury Racing should make this!

    Started by Scream And Fly, 01-14-2024 08:17 AM
    • Replies: 3
    • Views: 1,181
    01-14-2024, 08:03 PM Go to last post
  20. *** SPY PHOTOS*** ETEC Drag

    Started by FlowMaxx, 06-07-2010 07:02 PM
    57 Pages
    1 2 3 4 5 6 7 8 9 10 ... 57
    • Replies: 847
    • Views: 188,589
    01-11-2024, 09:47 PM Go to last post
  21. BRP E Tec 250

    Started by Boosting, 11-02-2023 03:53 PM
    • Replies: 2
    • Views: 1,234
    12-31-2023, 08:30 AM Go to last post
  22. Yamaha HPDI ECU Mods

    Started by lance, 03-04-2013 10:13 AM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 20,293
    11-23-2023, 10:10 PM Go to last post
  23. Optimax Fuel Rail

    Started by lowedown, 11-17-2023 05:34 PM
    • Replies: 4
    • Views: 942
    11-20-2023, 11:47 AM Go to last post
  24. Honda V8 350 HP

    Started by WaterZebra, 11-16-2023 11:04 AM
    • Replies: 0
    • Views: 643
    11-16-2023, 11:04 AM Go to last post
  25. Merc 300/450 air vents

    Started by Hebert519, 08-09-2023 03:25 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 4,051
    11-08-2023, 05:29 PM Go to last post
  26. Evinrude 150 ficht

    Started by SRU, 10-21-2023 06:03 AM
    • Replies: 0
    • Views: 645
    10-21-2023, 06:03 AM Go to last post
  27. Chasing Yamaha HPDI 300 service manual

    Started by foodie, 10-09-2023 04:57 AM
    • Replies: 1
    • Views: 585
    10-18-2023, 06:33 AM Go to last post
  28. 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: 9,481
    10-04-2023, 07:35 AM Go to last post
  29. Opti Fuel system rebuild kit?

    Started by DieselDood, 09-27-2023 04:28 PM
    • Replies: 1
    • Views: 718
    09-28-2023, 07:34 AM Go to last post
  30. Opti Computers

    Started by DieselDood, 09-26-2023 04:08 PM
    • Replies: 4
    • Views: 729
    09-27-2023, 08:33 AM Go to last post
  31. 225 Opti First fire

    Started by DieselDood, 09-20-2023 09:01 AM
    • Replies: 12
    • Views: 963
    09-23-2023, 04:10 PM Go to last post
  32. how the Optimax Multi-Point Oil Pump works

    Started by noli, 01-06-2019 08:59 AM
    • Replies: 6
    • Views: 7,191
    09-18-2023, 11:15 AM Go to last post
  33. 2000 Optimax 225 starts & Stalls

    Started by MadMat, 09-11-2023 01:55 AM
    • Replies: 4
    • Views: 858
    09-12-2023, 07:58 AM Go to last post
    • Replies: 0
    • Views: 430
    09-07-2023, 07:58 AM Go to last post
  34. Compressor rebuild on Optimax 135

    Started by littledoodie99, 08-10-2023 10:04 AM
    • Replies: 6
    • Views: 1,121
    08-16-2023, 08:49 PM Go to last post
  35. 2003 225 Optimax fuel/air problems

    Started by velox, 08-04-2023 10:19 AM
    225 optimax, direct fuel injection
    • Replies: 7
    • Views: 1,195
    08-06-2023, 11:23 AM Go to last post
    • Replies: 3
    • Views: 1,275
    08-05-2023, 02:24 PM Go to last post

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