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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
    • Replies: 74
    • Views: 110,581
    09-20-2020, 11:40 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: 73
    • Views: 108,917
    08-15-2020, 04:04 PM Go to last post
  1. Mercury Tech: Promax

    Started by rockyone, Yesterday 06:36 AM
    • Replies: 5
    • Views: 120
    Today, 02:00 AM Go to last post
    • Replies: 9
    • Views: 123
    Yesterday, 11:12 PM Go to last post
  2. 2 Stroke Oil?

    Started by scott reierson, Yesterday 02:42 PM
    • Replies: 2
    • Views: 53
    Yesterday, 11:10 PM Go to last post
  3. What prop pitch

    Started by Carter Powell, Yesterday 06:18 PM
    • Replies: 1
    • Views: 52
    Yesterday, 10:00 PM Go to last post
  4. Extract more hp from Merc 30hp 2cyl 2 stroke

    Started by wolfgangb, 11-01-2017 01:06 PM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 1,644
    Yesterday, 05:15 PM Go to last post
  5. Yamaha Tech: Is this overheat buzzer behavior normal?

    Started by pcrussell50, 07-01-2022 03:22 PM
    • Replies: 5
    • Views: 81
    Yesterday, 05:03 PM Go to last post
  6. Mercury Tech: 84 Mercury 2 stoke 150 rebuild

    Started by thesignguy, 06-14-2022 12:49 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 341
    Yesterday, 10:47 AM Go to last post
  7. Some Twister II questions, rest. project..

    Started by Droll, 11-13-2008 03:53 PM
    4 Pages
    1 2 3 4
    • Replies: 59
    • Views: 4,123
    Yesterday, 07:09 AM Go to last post
  8. What to set WOT timing to

    Started by NDIceMan72, 06-17-2022 02:48 PM
    • Replies: 12
    • Views: 457
    07-01-2022, 11:42 PM Go to last post
  9. Mercury Tech: Wiring bobs trim pump for a promax?

    Started by simpson_3, 07-01-2022 01:14 PM
    • Replies: 4
    • Views: 75
    07-01-2022, 03:56 PM Go to last post
  10. 89 xr4 black max 150 rebuild questions /advice

    Started by Lt1z350, 06-29-2022 08:30 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 253
    07-01-2022, 12:41 PM Go to last post
  11. 2017 300XS TO 400R/450R swap plug and play pretty much?

    Started by skydog, 06-21-2022 11:11 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 514
    07-01-2022, 10:23 AM Go to last post
  12. Simple question

    Started by berdes, 06-28-2022 10:24 PM
    • Replies: 8
    • Views: 212
    06-30-2022, 06:48 PM Go to last post
  13. Yamaha Tech: what and where

    Started by rock, 06-30-2022 09:54 AM
    • Replies: 3
    • Views: 90
    06-30-2022, 01:14 PM Go to last post
  14. 06 250pro xs, 25" to 20" or shorter

    Started by averep, 06-29-2022 10:44 PM
    • Replies: 0
    • Views: 44
    06-29-2022, 10:44 PM Go to last post
  15. Mercury Tech: 2.0 carb swap

    Started by Basinbeast4.3, 02-22-2014 10:42 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,763
    06-29-2022, 08:23 PM Go to last post
  16. 250XS Optimax

    Started by mikej, 06-29-2022 02:30 PM
    • Replies: 0
    • Views: 47
    06-29-2022, 02:30 PM Go to last post
  17. Gen 2 200XS ROS low oil alarm

    Started by David, 06-25-2022 01:12 PM
    • Replies: 11
    • Views: 203
    06-29-2022, 07:46 AM Go to last post
  18. DDT repair little help please

    Started by bill mason, 06-13-2022 02:19 PM
    • Replies: 2
    • Views: 171
    06-29-2022, 05:58 AM Go to last post
  19. compression v200 and sloppy pistons

    Started by hobbymad, 06-26-2022 06:02 AM
    • Replies: 5
    • Views: 197
    06-29-2022, 12:01 AM Go to last post
  20. Mercury Trilobe Removal

    Started by Glastron1987, 06-28-2022 08:08 PM
    • Replies: 0
    • Views: 60
    06-28-2022, 08:08 PM Go to last post
  21. Need help with a promax 300

    Started by Lake rat Skater, 10-16-2021 02:18 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 591
    06-27-2022, 10:23 PM Go to last post
  22. Mercury Tech: 98 200FF build, lots of pics. lots of questions, hopefully not lots of mistakes!

    Started by LakeFever, 07-17-2021 03:55 PM
    5 Pages
    1 2 3 4 5
    • Replies: 74
    • Views: 4,164
    06-27-2022, 05:01 PM Go to last post
  23. 300 drag sleeve question

    Started by hollywood120, 06-22-2022 07:57 AM
    • Replies: 10
    • Views: 359
    06-27-2022, 08:57 AM Go to last post
  24. Ride Guide duel steering ?

    Started by Ron C., 06-21-2022 06:13 PM
    • Replies: 7
    • Views: 246
    06-27-2022, 08:04 AM Go to last post
    • Replies: 1
    • Views: 79
    06-26-2022, 01:57 PM Go to last post
  25. Mercury Tech: Rubber water diverters in 2.4 merc

    Started by rgsauger, 06-23-2022 10:29 PM
    • Replies: 3
    • Views: 162
    06-25-2022, 12:03 PM Go to last post
  26. Plug wires

    Started by 65gamblerman, 06-25-2022 07:15 AM
    • Replies: 0
    • Views: 73
    06-25-2022, 07:15 AM Go to last post
  27. Mercury Tech: Custom poppet for 225 promax on 1 piece plate

    Started by simpson_3, 05-18-2022 04:38 PM
    • Replies: 7
    • Views: 354
    06-24-2022, 05:30 AM Go to last post
  28. 150 Mercury XRI no power and hard start

    Started by Nuckolsn, 06-04-2022 04:46 PM
    4 Pages
    1 2 3 4
    • Replies: 55
    • Views: 925
    06-23-2022, 10:47 PM Go to last post
  29. vst delete

    Started by Deacon, 06-21-2022 07:35 PM
    • Replies: 2
    • Views: 163
    06-23-2022, 07:32 PM Go to last post
  30. Fuel issue

    Started by merc1250bayliner, 06-21-2022 07:16 PM
    • Replies: 5
    • Views: 140
    06-22-2022, 01:15 PM Go to last post
  31. Block Boring

    Started by omcforever, 06-21-2022 10:52 AM
    • Replies: 3
    • Views: 246
    06-22-2022, 09:24 AM Go to last post
  32. 1983 omc 235.

    Started by seef158, 06-19-2022 06:10 PM
    • Replies: 6
    • Views: 254
    06-21-2022, 04:05 PM Go to last post
  33. 300 drag

    Started by dragmirage, 06-19-2022 04:49 PM
    • Replies: 6
    • Views: 365
    06-21-2022, 09:56 AM Go to last post
  34. Drilling vent holes

    Started by RSWORDS, 06-14-2022 06:39 PM
    • Replies: 7
    • Views: 289
    06-20-2022, 05:03 PM Go to last post
  35. 225 Promax Fuel PSI

    Started by tabme, 06-12-2022 06:49 AM
    • Replies: 7
    • Views: 309
    06-19-2022, 12:42 PM Go to last post
  36. Yamaha Tech: 90hp Yamaha engine rebuild questions

    Started by checkmate45, 06-18-2022 06:39 PM
    • Replies: 0
    • Views: 77
    06-18-2022, 06:39 PM Go to last post
  37. 1991 Merc 200 Up trim activates on its own while engine not running

    Started by floater88, 06-14-2022 10:37 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 363
    06-18-2022, 02:50 PM Go to last post

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