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  1. Mercruiser 5.0 Thunderbolt Died

    Started by Dave Bramow, 08-02-2021 08:51 AM
    • Replies: 1
    • Views: 22
    08-02-2021, 04:32 PM Go to last post
  2. who sells replacement MEFI 5 ECM's?

    Started by stang32, 07-31-2021 07:38 AM
    • Replies: 1
    • Views: 23
    07-31-2021, 02:49 PM Go to last post
    • Replies: 6
    • Views: 119
    07-22-2021, 12:34 PM Go to last post
  3. Mercruiser Mag 350 MPI, MEFI 3 help please

    Started by aztige, 07-12-2021 11:41 AM
    • Replies: 2
    • Views: 75
    07-13-2021, 08:06 AM Go to last post
  4. Gm 5.7 backfires and pops

    Started by boatingfun1, 06-27-2021 08:01 AM
    • Replies: 9
    • Views: 163
    07-04-2021, 06:52 AM Go to last post
  5. Info on 2007 3.0L inboard

    Started by sandkicker, 06-15-2021 11:00 AM
    • Replies: 2
    • Views: 66
    06-15-2021, 05:38 PM Go to last post
  6. MP 340 Harmonic Balancer wobble

    Started by ColoradoGuy, 05-27-2021 05:05 PM
    • Replies: 1
    • Views: 146
    05-28-2021, 09:23 AM Go to last post
    • Replies: 1
    • Views: 225
    04-28-2021, 05:40 AM Go to last post
  7. Inoperable Tach Gauge on 05 NW Jet Boat

    Started by JReich2609, 04-18-2021 08:19 PM
    • Replies: 1
    • Views: 137
    04-19-2021, 03:40 PM Go to last post
  8. Help verify engine please

    Started by boatingfun1, 10-28-2020 09:03 AM
    • Replies: 29
    • Views: 1,650
    04-13-2021, 02:56 PM Go to last post
  9. Eco question

    Started by Rico25, 02-18-2021 10:09 AM
    • Replies: 2
    • Views: 473
    02-19-2021, 08:47 PM Go to last post
  10. Please help with Holly carb kit

    Started by boatingfun1, 02-14-2021 12:15 PM
    • Replies: 2
    • Views: 181
    02-14-2021, 05:03 PM Go to last post
  11. 2019 5.7 MPI misfire issue

    Started by mhf2467, 12-25-2020 11:09 AM
    • Replies: 0
    • Views: 472
    12-25-2020, 11:09 AM Go to last post
  12. 1994 Mainship 7.4 TBI

    Started by JacksMainship, 12-08-2020 06:16 PM
    • Replies: 5
    • Views: 506
    12-14-2020, 03:37 PM Go to last post
  13. 454 rebuild 330 hp

    Started by Pachanga1224, 12-03-2020 05:51 PM
    • Replies: 3
    • Views: 460
    12-04-2020, 12:31 PM Go to last post
    • Replies: 1
    • Views: 953
    11-15-2020, 11:19 AM Go to last post
    • Replies: 1
    • Views: 852
    10-13-2020, 10:04 AM Go to last post
  14. Question Mercruiser GM 5.7l TBI, shift switch help....

    Started by PNWBoater, 10-09-2020 10:45 PM
    • Replies: 0
    • Views: 635
    10-09-2020, 10:45 PM Go to last post
  15. Wiring harness plug diagram

    Started by patfrank, 07-07-2020 07:52 PM
    • Replies: 5
    • Views: 1,953
    09-22-2020, 10:28 AM Go to last post
    • Replies: 0
    • Views: 1,328
    07-08-2020, 02:49 PM Go to last post
    • Replies: 4
    • Views: 1,201
    07-04-2020, 09:37 PM Go to last post
  16. Year maintenance for longevity

    Started by Dlobb333, 06-25-2020 01:07 AM
    • Replies: 1
    • Views: 1,271
    06-25-2020, 09:04 AM Go to last post
  17. Throttle loss of power

    Started by Dlobb333, 06-20-2020 07:06 PM
    • Replies: 1
    • Views: 1,175
    06-21-2020, 07:38 AM Go to last post
  18. firing order- 1999 502 mag

    Started by Lowbilly, 05-21-2020 08:04 AM
    • Replies: 1
    • Views: 1,385
    05-22-2020, 07:23 AM Go to last post
  19. Talking Mercruiser 5.0 MPI stalling and clinking!

    Started by jason1836, 05-15-2020 09:10 AM
    • Replies: 0
    • Views: 1,319
    05-15-2020, 09:10 AM Go to last post
  20. Merc horizon. 7.4 mag mpi. Idling to high

    Started by Skipper2019, 05-03-2020 10:35 PM
    • Replies: 1
    • Views: 1,596
    05-03-2020, 11:38 PM Go to last post
  21. Question on 350 sbc omc 800 build

    Started by Priesman64, 08-06-2019 11:52 PM
    • Replies: 5
    • Views: 4,215
    04-16-2020, 07:50 AM Go to last post
  22. carbrated 5.7 mercuriser alpha 1 drive

    Started by Chris Bryson, 09-22-2019 08:14 PM
    • Replies: 4
    • Views: 3,501
    04-15-2020, 07:12 PM Go to last post
  23. Raw water pump corrosion

    Started by Mariner 88, 10-02-2019 05:08 PM
    • Replies: 2
    • Views: 4,904
    04-15-2020, 03:26 PM Go to last post
  24. temp gauge

    Started by lunkerdo, 05-22-2011 05:23 PM
    • Replies: 9
    • Views: 2,885
    04-15-2020, 03:25 PM Go to last post
  25. 1986 Mercruiser 140 fuel filter

    Started by Planodave, 03-18-2020 11:47 PM
    • Replies: 3
    • Views: 1,772
    03-23-2020, 11:55 AM Go to last post
  26. 4.3 mercruiser

    Started by Tyler1992, 02-22-2020 08:15 AM
    • Replies: 1
    • Views: 2,221
    02-22-2020, 08:38 AM Go to last post
  27. 115 HP 1984 Mariner Inline 6 - How many cc?

    Started by remusvalean, 02-18-2020 01:06 PM
    • Replies: 1
    • Views: 1,707
    02-18-2020, 02:55 PM Go to last post
  28. Unsteady Idle

    Started by alparmer, 09-18-2019 01:39 PM
    • Replies: 2
    • Views: 3,147
    09-18-2019, 04:47 PM Go to last post
  29. Loss of Power

    Started by mhf2467, 09-13-2019 08:43 AM
    • Replies: 1
    • Views: 3,148
    09-15-2019, 03:51 PM Go to last post
  30. 454 timing

    Started by Andrew33764, 07-31-2019 11:42 AM
    • Replies: 5
    • Views: 3,823
    08-03-2019, 04:55 PM Go to last post
  31. fuel pump Carter 152-875

    Started by Bob Morton, 07-21-2019 01:39 PM
    • Replies: 3
    • Views: 7,987
    07-21-2019, 02:28 PM Go to last post
  32. Canadian compliance sticker ENGINE RATING

    Started by Boater123456, 07-14-2019 05:30 PM
    • Replies: 1
    • Views: 3,622
    07-15-2019, 02:33 PM Go to last post
    • Replies: 2
    • Views: 4,167
    07-10-2019, 10:44 AM Go to last post
  33. Rebuilt engine wont start

    Started by mhf2467, 07-07-2019 06:48 AM
    • Replies: 3
    • Views: 3,632
    07-07-2019, 10:29 AM Go to last post
  34. Cap

    Started by bcclew, 06-29-2019 08:38 AM
    • Replies: 2
    • Views: 3,609
    07-01-2019, 09:51 AM Go to last post
    • Replies: 11
    • Views: 4,191
    06-26-2019, 09:31 AM Go to last post
  35. Fuel Regulator Questions

    Started by tparsons56, 06-12-2019 04:30 PM
    • Replies: 4
    • Views: 4,055
    06-13-2019, 02:11 PM Go to last post
  36. Question 2002 5.0 MPI Fuel Problem.

    Started by Detex1, 06-09-2019 10:38 AM
    • Replies: 1
    • Views: 3,517
    06-10-2019, 04:02 PM Go to last post
  37. Greg Huffman

    Started by ghuffer49, 05-28-2019 02:56 PM
    • Replies: 1
    • Views: 3,629
    05-28-2019, 09:03 PM Go to last post
  38. Question Busted engine block

    Started by Brians Bryant, 05-15-2019 08:50 PM
    • Replies: 5
    • Views: 3,590
    05-17-2019, 06:52 AM Go to last post
  39. Marine Power 8.1L Surging Issue? - Video

    Started by jetboating, 05-07-2019 05:00 PM
    • Replies: 8
    • Views: 4,188
    05-09-2019, 09:09 AM Go to last post
  40. Post Mercruiser, 383 Mag Stroker Inboard

    Started by Mercury Mag Stroker, 05-01-2019 10:05 AM
    • Replies: 10
    • Views: 4,206
    05-02-2019, 01:11 PM Go to last post

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