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  1. 2019 5.7 MPI misfire issue

    Started by mhf2467, 12-25-2020 12:09 PM
    • Replies: 0
    • Views: 160
    12-25-2020, 12:09 PM Go to last post
  2. 1994 Mainship 7.4 TBI

    Started by JacksMainship, 12-08-2020 07:16 PM
    • Replies: 5
    • Views: 267
    12-14-2020, 04:37 PM Go to last post
  3. 454 rebuild 330 hp

    Started by Pachanga1224, 12-03-2020 06:51 PM
    • Replies: 3
    • Views: 234
    12-04-2020, 01:31 PM Go to last post
    • Replies: 1
    • Views: 625
    11-15-2020, 12:19 PM Go to last post
  4. Help verify engine please

    Started by boatingfun1, 10-28-2020 10:03 AM
    • Replies: 28
    • Views: 1,014
    11-06-2020, 09:35 AM Go to last post
    • Replies: 1
    • Views: 583
    10-13-2020, 11:04 AM Go to last post
  5. Question Mercruiser GM 5.7l TBI, shift switch help....

    Started by PNWBoater, 10-09-2020 11:45 PM
    • Replies: 0
    • Views: 468
    10-09-2020, 11:45 PM Go to last post
  6. Wiring harness plug diagram

    Started by patfrank, 07-07-2020 08:52 PM
    • Replies: 5
    • Views: 1,399
    09-22-2020, 11:28 AM Go to last post
    • Replies: 0
    • Views: 1,024
    07-08-2020, 03:49 PM Go to last post
    • Replies: 4
    • Views: 1,007
    07-04-2020, 10:37 PM Go to last post
  7. Year maintenance for longevity

    Started by Dlobb333, 06-25-2020 02:07 AM
    • Replies: 1
    • Views: 1,029
    06-25-2020, 10:04 AM Go to last post
  8. Throttle loss of power

    Started by Dlobb333, 06-20-2020 08:06 PM
    • Replies: 1
    • Views: 1,021
    06-21-2020, 08:38 AM Go to last post
  9. firing order- 1999 502 mag

    Started by Lowbilly, 05-21-2020 09:04 AM
    • Replies: 1
    • Views: 1,221
    05-22-2020, 08:23 AM Go to last post
  10. Talking Mercruiser 5.0 MPI stalling and clinking!

    Started by jason1836, 05-15-2020 10:10 AM
    • Replies: 0
    • Views: 1,176
    05-15-2020, 10:10 AM Go to last post
  11. Merc horizon. 7.4 mag mpi. Idling to high

    Started by Skipper2019, 05-03-2020 11:35 PM
    • Replies: 1
    • Views: 1,296
    05-04-2020, 12:38 AM Go to last post
  12. Question on 350 sbc omc 800 build

    Started by Priesman64, 08-07-2019 12:52 AM
    • Replies: 5
    • Views: 3,173
    04-16-2020, 08:50 AM Go to last post
  13. carbrated 5.7 mercuriser alpha 1 drive

    Started by Chris Bryson, 09-22-2019 09:14 PM
    • Replies: 4
    • Views: 2,628
    04-15-2020, 08:12 PM Go to last post
  14. Raw water pump corrosion

    Started by Mariner 88, 10-02-2019 06:08 PM
    • Replies: 2
    • Views: 3,632
    04-15-2020, 04:26 PM Go to last post
  15. temp gauge

    Started by lunkerdo, 05-22-2011 06:23 PM
    • Replies: 9
    • Views: 2,507
    04-15-2020, 04:25 PM Go to last post
  16. 1986 Mercruiser 140 fuel filter

    Started by Planodave, 03-19-2020 12:47 AM
    • Replies: 3
    • Views: 1,554
    03-23-2020, 12:55 PM Go to last post
  17. 4.3 mercruiser

    Started by Tyler1992, 02-22-2020 09:15 AM
    • Replies: 1
    • Views: 1,736
    02-22-2020, 09:38 AM Go to last post
  18. 115 HP 1984 Mariner Inline 6 - How many cc?

    Started by remusvalean, 02-18-2020 02:06 PM
    • Replies: 1
    • Views: 1,552
    02-18-2020, 03:55 PM Go to last post
  19. Unsteady Idle

    Started by alparmer, 09-18-2019 02:39 PM
    • Replies: 2
    • Views: 2,416
    09-18-2019, 05:47 PM Go to last post
  20. Loss of Power

    Started by mhf2467, 09-13-2019 09:43 AM
    • Replies: 1
    • Views: 2,420
    09-15-2019, 04:51 PM Go to last post
  21. 454 timing

    Started by Andrew33764, 07-31-2019 12:42 PM
    • Replies: 5
    • Views: 2,854
    08-03-2019, 05:55 PM Go to last post
  22. fuel pump Carter 152-875

    Started by Bob Morton, 07-21-2019 02:39 PM
    • Replies: 3
    • Views: 5,807
    07-21-2019, 03:28 PM Go to last post
  23. Canadian compliance sticker ENGINE RATING

    Started by Boater123456, 07-14-2019 06:30 PM
    • Replies: 1
    • Views: 2,731
    07-15-2019, 03:33 PM Go to last post
    • Replies: 2
    • Views: 3,046
    07-10-2019, 11:44 AM Go to last post
  24. Rebuilt engine wont start

    Started by mhf2467, 07-07-2019 07:48 AM
    • Replies: 3
    • Views: 2,760
    07-07-2019, 11:29 AM Go to last post
  25. Cap

    Started by bcclew, 06-29-2019 09:38 AM
    • Replies: 2
    • Views: 2,782
    07-01-2019, 10:51 AM Go to last post
    • Replies: 11
    • Views: 3,335
    06-26-2019, 10:31 AM Go to last post
  26. Fuel Regulator Questions

    Started by tparsons56, 06-12-2019 05:30 PM
    • Replies: 4
    • Views: 3,040
    06-13-2019, 03:11 PM Go to last post
  27. Question 2002 5.0 MPI Fuel Problem.

    Started by Detex1, 06-09-2019 11:38 AM
    • Replies: 1
    • Views: 2,700
    06-10-2019, 05:02 PM Go to last post
  28. Greg Huffman

    Started by ghuffer49, 05-28-2019 03:56 PM
    • Replies: 1
    • Views: 2,855
    05-28-2019, 10:03 PM Go to last post
  29. Question Busted engine block

    Started by Brians Bryant, 05-15-2019 09:50 PM
    • Replies: 5
    • Views: 2,881
    05-17-2019, 07:52 AM Go to last post
  30. Marine Power 8.1L Surging Issue? - Video

    Started by jetboating, 05-07-2019 06:00 PM
    • Replies: 8
    • Views: 3,258
    05-09-2019, 10:09 AM Go to last post
  31. Post Mercruiser, 383 Mag Stroker Inboard

    Started by Mercury Mag Stroker, 05-01-2019 11:05 AM
    • Replies: 10
    • Views: 3,296
    05-02-2019, 02:11 PM Go to last post
  32. Twin engine firing LH or RH

    Started by BELGA, 04-26-2019 09:16 PM
    • Replies: 9
    • Views: 3,217
    04-29-2019, 07:05 PM Go to last post
  33. 2007 496 Ho mag coolant Tank keeps overflowing

    Started by luis varela, 02-12-2019 12:54 AM
    • Replies: 5
    • Views: 4,248
    02-13-2019, 10:05 AM Go to last post
  34. 5.7 mercruiser ski intermittent spark issue

    Started by Julz, 08-17-2018 01:19 PM
    • Replies: 2
    • Views: 4,644
    11-01-2018, 11:23 PM Go to last post
  35. Murcury 2 stroke 9.9 hp runs a little rough

    Started by Ahlstrol, 10-06-2018 07:59 PM
    • Replies: 1
    • Views: 3,774
    10-06-2018, 08:11 PM Go to last post
  36. Fuel pressure issue

    Started by Fastech, 10-01-2018 10:25 PM
    • Replies: 1
    • Views: 3,531
    10-02-2018, 08:31 PM Go to last post
  37. Mercruiser 5.7 dies at low rpms

    Started by Justinplumber, 08-19-2018 04:05 AM
    • Replies: 2
    • Views: 3,879
    09-10-2018, 12:09 PM Go to last post
  38. 1991 Mercruiser 4.3 Litre

    Started by SaskGuy, 08-13-2018 04:27 PM
    • Replies: 2
    • Views: 3,924
    08-13-2018, 10:47 PM Go to last post
    • Replies: 3
    • Views: 4,125
    08-07-2018, 09:40 AM Go to last post
  39. Loss of Throttle...

    Started by sosoomi, 07-04-2018 08:32 PM
    • Replies: 10
    • Views: 4,259
    07-24-2018, 10:54 AM Go to last post
  40. Engine Storage

    Started by jsragmn, 11-10-2017 01:38 PM
    • Replies: 10
    • Views: 6,361
    07-23-2018, 03:54 PM Go to last post
  41. Sitting Boat

    Started by Daviid, 07-07-2018 11:04 AM
    • Replies: 5
    • Views: 3,818
    07-11-2018, 12:41 PM Go to last post

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