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Forum: Technical Discussion

  1. Smile Sticky Thread Sticky: Building A looper Beast

    Started by R Austin, 05-14-2012
    63 Pages •
    1 2 3 ... 63
    1021 Attachment(s)
    • Replies: 622
    • Views: 1,018,643
    R Austin
    07-17-2023 Go to last post

  1. OMC 56 Oval Port Specs with suprising results

    Started by filthy phill, 09-01-2017
    1 Attachment(s)
    • Replies: 0
    • Views: 3,868
    filthy phill
    09-01-2017 Go to last post

  2. OMC 56 Oval Port Specs.....Some very suprising results

    Started by filthy phill, 09-01-2017
    1 Attachment(s)
    • Replies: 0
    • Views: 5,097
    filthy phill
    09-01-2017 Go to last post

  3. Yamaha carb jet sizes question

    Started by Rjrobin2002, 08-24-2017
    • Replies: 1
    • Views: 2,638
    sabine river killer
    08-24-2017 Go to last post

  4. 3 into 1 exhaust

    Started by Mtrhead, 01-01-2014
    7 Attachment(s)
    • Replies: 6
    • Views: 13,379
    MODIFIEDOUTBOARD
    08-23-2017 Go to last post

  5. OMC 1 3/8" carbs

    Started by andmar, 01-11-2017
    4 Pages •
    1 2 3 ... 4
    1 Attachment(s)
    • Replies: 39
    • Views: 23,774
    MODIFIEDOUTBOARD
    08-23-2017 Go to last post

  6. rev limiter on omc 3 cylinder ? seems it can be done easy

    Started by filthy phill, 06-09-2017
    2 Pages •
    1 2
    • Replies: 17
    • Views: 6,635
    filthy phill
    08-15-2017 Go to last post

  7. Columbian L6 JB three blade bronze cleaver

    Started by paavojaelvis, 06-22-2017
    5 Pages •
    1 2 3 ... 5
    11 Attachment(s)
    • Replies: 47
    • Views: 13,554
    filthy phill
    08-14-2017 Go to last post

  8. OMG, another guy who wants to convert his 15hp to a 10XS

    Started by Full Speed, 08-08-2017
    2 Pages •
    1 2
    4 Attachment(s)
    • Replies: 15
    • Views: 8,532
    Fastjeff57
    08-10-2017 Go to last post

  9. Trying to track down non power ported pistons Mercury in line

    Started by Actmobmar, 08-08-2017
    • Replies: 0
    • Views: 1,788
    Actmobmar
    08-08-2017 Go to last post

  10. Fuel pressure

    Started by hupiveneilija, 07-25-2017
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 11
    • Views: 4,846
    filthy phill
    07-28-2017 Go to last post

  11. Sorensen long haul center fin

    Started by Jippe, 06-22-2014
    5 Pages •
    1 2 3 ... 5
    5 Attachment(s)
    • Replies: 49
    • Views: 19,449
    Fastjeff57
    07-27-2017 Go to last post

  12. Hal Kelly race boat logo/decal

    Started by Drotti, 12-23-2014
    2 Pages •
    1 2
    3 Attachment(s)
    • Replies: 11
    • Views: 9,161
    donzi16
    07-27-2017 Go to last post

  13. New guy with 15 mariner

    Started by GheenoeRacer, 07-20-2017
    • Replies: 1
    • Views: 1,913
    GheenoeRacer
    07-20-2017 Go to last post

  14. Help With Jetting 140 hp carbs for an 85 hp V4 Johnson

    Started by Spybot, 06-30-2017
    2 Pages •
    1 2
    • Replies: 12
    • Views: 6,815
    JohnsonM50
    07-18-2017 Go to last post

  15. OMC Black top carbs for 56 cu in motors.

    Started by filthy phill, 06-07-2017
    • Replies: 1
    • Views: 2,093
    filthy phill
    07-06-2017 Go to last post

  16. Johnson /Evinrude 56 cu in reed cages and intaske manifold mods ?

    Started by filthy phill, 07-03-2017
    1 Attachment(s)
    • Replies: 2
    • Views: 2,510
    filthy phill
    07-03-2017 Go to last post

  17. Flushing with hose

    Started by hupiveneilija, 07-02-2017
    • Replies: 4
    • Views: 4,077
    filthy phill
    07-02-2017 Go to last post

  18. Any benefit of drilling holes through the mid section for the exhaust outlets?

    Started by Spybot, 07-02-2017
    • Replies: 1
    • Views: 2,599
    filthy phill
    07-02-2017 Go to last post

  19. Fastest 4 bladed prop for 25hp motor on Inflatable rescue boat small to large swell.

    Started by Fazz2001, 06-29-2017
    • Replies: 0
    • Views: 1,649
    Fazz2001
    06-29-2017 Go to last post

  20. Manual speedmaster

    Started by Droll-l6, 11-04-2006
    manual, speedmaster
    • Replies: 9
    • Views: 7,644
    sebromanh
    06-14-2017 Go to last post
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