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Threads 1 to 40 of 480

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
    4 Pages
    1 2 3 4
    • Replies: 53
    • Views: 83,477
    02-12-2020, 12:09 AM Go to last post
  2. Sticky Thread Sticky: Alisyn Oil Promotion - Free Shipping On All Orders!

    Started by Scream And Fly, 02-03-2006 04:03 PM
    5 Pages
    1 2 3 4 5
    • Replies: 63
    • Views: 81,978
    04-30-2019, 06:19 AM Go to last post
  1. Mercury Tech: Merc. 225 EFI 3.0L 2-Stroke Spark Plugs

    Started by AZ Intimidator, 10-27-2009 12:50 PM
    3 Pages
    1 2 3
    • Replies: 41
    • Views: 32,009
    07-03-2020, 05:56 PM Go to last post
  2. OMC Tech: OMC Cross Charge Mod questions

    Started by 930turbo, 09-04-2011 01:28 PM
    9 Pages
    1 2 3 4 5 6 7 8 9
    • Replies: 128
    • Views: 21,586
    05-26-2020, 09:51 PM Go to last post
  3. 225 promax with one piece adapter plate

    Started by Go Time, 11-28-2012 07:42 AM
    18 Pages
    1 2 3 4 5 6 7 8 9 10 ... 18
    • Replies: 259
    • Views: 19,850
    07-31-2020, 06:23 PM Go to last post
  4. Question Crankcase compression for experts

    Started by Terry Jackson, 09-06-2002 07:57 AM
    11 Pages
    1 2 3 4 5 6 7 8 9 10 ... 11
    • Replies: 155
    • Views: 18,483
    06-22-2020, 04:01 PM Go to last post
  5. Reeds

    Started by racer, 01-24-2010 08:48 PM
    10 Pages
    1 2 3 4 5 6 7 8 9 10
    • Replies: 135
    • Views: 14,033
    04-30-2020, 12:17 AM Go to last post
  6. 2002 Mercury 225 EFI performance mods

    Started by Freedom92, 08-21-2018 10:22 AM
    11 Pages
    1 2 3 4 5 6 7 8 9 10 ... 11
    • Replies: 162
    • Views: 12,317
    05-03-2020, 10:23 PM Go to last post
  7. Mercury 3.4 l Formula EFI Outboard

    Started by rdmerhar, 02-14-2007 09:44 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 12,211
    05-26-2020, 06:26 PM Go to last post
  8. Smile Need Yamaha 90 hp performance advice

    Started by keywestnoah, 03-05-2006 08:45 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 10,678
    05-26-2020, 11:39 AM Go to last post
  9. How can I get 200 hp from my 150 EFI Merc?

    Started by Mesabooger, 05-19-2007 08:27 PM
    5 Pages
    1 2 3 4 5
    • Replies: 72
    • Views: 7,703
    05-03-2020, 05:56 AM Go to last post
  10. Hard starting Merc 115

    Started by Nickolas, 09-23-2011 11:32 AM
    4 Pages
    1 2 3 4
    • Replies: 53
    • Views: 6,513
    07-06-2020, 05:47 PM Go to last post
  11. Exclamation OMC Tech: 1989 Evinrude 200 not reaching W.O.T. after 20" conversion

    Started by jaymalyon, 03-18-2019 04:21 PM
    14 Pages
    1 2 3 4 5 6 7 8 9 10 ... 14
    • Replies: 201
    • Views: 6,416
    07-23-2020, 06:41 AM Go to last post
  12. OMC Tech: Crossflow Jets

    Started by DieselDood, 05-07-2020 11:32 AM
    24 Pages
    1 2 3 4 5 6 7 8 9 10 ... 24
    • Replies: 356
    • Views: 5,998
    06-05-2020, 07:40 AM Go to last post
  13. Mercury Tech: My blown Merc XR2: 'rude guy's observations and questions

    Started by pcrussell50, 09-20-2012 02:41 AM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 5,152
    07-25-2020, 04:13 PM Go to last post
  14. OMC Tech: Crossflow build

    Started by Fastbass88, 08-30-2019 12:25 PM
    4 Pages
    1 2 3 4
    • Replies: 55
    • Views: 5,008
    07-14-2020, 11:20 PM Go to last post
  15. Mercury Tech: 2.5L XRi Oil Pump Driven Gear Removal

    Started by bill200xri, 12-04-2016 02:30 PM
    • Replies: 14
    • Views: 4,745
    05-24-2020, 02:48 AM Go to last post
  16. Mercury V6 School for lower units

    Started by LakeFever, 07-24-2018 08:07 AM
    7 Pages
    1 2 3 4 5 6 7
    • Replies: 91
    • Views: 4,603
    07-27-2020, 07:12 PM Go to last post
  17. 1997 200 EFI Idling issue

    Started by BullCroaker, 01-10-2016 09:22 AM
    2 Pages
    1 2
    • Replies: 25
    • Views: 4,596
    06-30-2020, 10:22 PM Go to last post
  18. Cmc actuator rebuild..

    Started by kct11, 01-18-2017 08:55 PM
    2 Pages
    1 2
    • Replies: 28
    • Views: 4,523
    08-04-2020, 07:51 PM Go to last post
  19. ProMax Rebuild

    Started by Hydrodreams, 11-25-2019 10:07 PM
    5 Pages
    1 2 3 4 5
    • Replies: 65
    • Views: 4,245
    05-28-2020, 04:09 AM Go to last post
  20. 93 Mercury cowl seal gasket

    Started by Aaronhl, 11-01-2019 06:07 PM
    • Replies: 13
    • Views: 4,097
    05-30-2020, 07:44 AM Go to last post
  21. Question Mercury Tech: 1999 200 EFI Erratic ECU values

    Started by lost2a6, 02-23-2018 06:37 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 3,788
    07-22-2020, 08:16 PM Go to last post
  22. MercRod????

    Started by Dave S, 06-22-2020 03:48 AM
    7 Pages
    1 2 3 4 5 6 7
    • Replies: 91
    • Views: 2,895
    07-27-2020, 09:45 PM Go to last post
  23. 2.7 Heads on 3.0 I know, dead horse

    Started by pdmoney, 08-14-2019 01:14 PM
    4 Pages
    1 2 3 4
    • Replies: 52
    • Views: 2,694
    07-14-2020, 09:25 AM Go to last post
  24. V4 omc gearcase hop ups

    Started by 76horizon, 01-16-2017 05:35 PM
    3 Pages
    1 2 3
    • Replies: 39
    • Views: 2,649
    05-07-2020, 08:29 AM Go to last post
  25. Yamaha Tech: 70 hp two stroke lower units with better gearing

    Started by Griffin4590, 03-01-2012 12:29 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 2,288
    06-01-2020, 02:18 PM Go to last post
  26. 225 promax failure diagnosis

    Started by Promaxin, 04-14-2020 10:21 PM
    4 Pages
    1 2 3 4
    • Replies: 46
    • Views: 2,127
    05-06-2020, 05:41 AM Go to last post
  27. How to remove steering wheel base?

    Started by Aaronhl, 05-15-2020 05:55 PM
    • Replies: 13
    • Views: 1,959
    05-18-2020, 07:35 AM Go to last post
  28. 1995 200 efi 2.5 RUNNING HOT

    Started by CHEVYMAN434, 06-12-2020 08:30 PM
    • Replies: 5
    • Views: 1,829
    06-13-2020, 06:44 PM Go to last post
  29. After Reeds,stuffers, and hydrotec heads I've lost power.

    Started by Degan, 06-22-2020 09:30 AM
    5 Pages
    1 2 3 4 5
    • Replies: 62
    • Views: 1,762
    06-30-2020, 10:09 AM Go to last post
    • Replies: 42
    • Views: 1,745
    05-22-2020, 08:28 AM Go to last post
  30. Charger 18DL Stiff Steering

    Started by Sawbladz, 05-24-2020 06:33 PM
    • Replies: 6
    • Views: 1,687
    05-25-2020, 09:34 PM Go to last post
  31. High water pressure 225 promax

    Started by Bunger, 05-24-2020 10:32 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 82
    • Views: 1,580
    07-28-2020, 06:33 AM Go to last post
  32. Mercury Power Tune? Your Experience

    Started by bahnerboater, 09-16-2016 10:59 AM
    2 Pages
    1 2
    • Replies: 28
    • Views: 1,556
    05-09-2020, 08:29 PM Go to last post
  33. Start stop panel outboard

    Started by killerpirate, 04-01-2020 08:44 AM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 1,527
    06-11-2020, 04:52 PM Go to last post
  34. OMC Tech: Evinrude FICHT 175 (98 y.m.) Ignition module circuit.

    Started by Dzintars, 04-07-2017 12:33 AM
    • Replies: 14
    • Views: 1,496
    07-23-2020, 01:38 PM Go to last post
  35. Difference: merc 280 ros vs merc 280 standard (con)

    Started by Stålproppen, 01-21-2015 03:42 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,473
    05-24-2020, 02:09 PM Go to last post
  36. Lithium and Merc R motors ?

    Started by fishnfireman, 09-12-2019 06:17 AM
    • Replies: 9
    • Views: 1,456
    06-03-2020, 06:03 PM Go to last post
  37. Mounting battery in the front?????

    Started by 69MyWay, 04-15-2019 08:08 AM
    4 Pages
    1 2 3 4
    • Replies: 46
    • Views: 1,402
    05-01-2020, 07:36 PM Go to last post
  38. 98 200EFI set up

    Started by LakeFever, 07-16-2019 08:37 AM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 1,352
    05-06-2020, 12:14 PM Go to last post

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