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  1. #1
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    New Aussie here.

    Hi fellow enthusiasts, Justin here from Sydney Australia, long time lurker, owner of a 151 bulls bay, made by pioneer boats. Skiff essentially 6 degree dead rise, used to run a 50 Tohatsu, sold that fitted a 70 yammie, 2005 two stroke, any way, just thought I’d say hello.

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  3. #2
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    LETS GO BRANDON.... LETS GO BRANDON

    Sometimes I talk to myself...then we both just laugh and laugh

    '84 Checkmate Convincor

  4. #3
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    Welcome to the site. All kinds of different here. Even some of the boats.

    Rock
    Team Junk

    No sparkling wiggles in here, only dump truck grinches.

    "Screamin Heathen"

  5. #4
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    So what kind of speeds are you getting out of your rig?
    And any pics?
    LETS GO BRANDON.... LETS GO BRANDON

    Sometimes I talk to myself...then we both just laugh and laugh

    '84 Checkmate Convincor

  6. #5
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    Trimmed up, one person not running tidal, 41-2 mph, since then slowly losing top end, reed valves are going to be replaced soon, with bigger carbs off the 90hp. Photos soon.

  7. #6
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    Click image for larger version. 

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    Quote Originally Posted by Pjpoppet View Post
    Trimmed up, one person not running tidal, 41-2 mph, since then slowly losing top end, reed valves are going to be replaced soon, with bigger carbs off the 90hp. Photos soon.

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  9. #7
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    Welcome to the jungle (s&f) Slowly losing wot rpm usually ain't reeds. Gonna need do sum compression or leak down to c what u got. R u runnin good temps?

    Only other thing I could think b is boat takin on water adding weight (water logged) ?

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  11. #8
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    I am a automotive mechanic, compression test done although on the low side, 115,110, 105, battery was a little flat too, it pops out if the lowest carb, also hard starting, have checked spark, reset timing, static and with light, bilge is dry mainly, I am a bit of a tinkerer, so I usually just check and replace things so I know they are spot on.

  12. #9
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    Quote Originally Posted by Pjpoppet View Post
    I am a automotive mechanic, compression test done although on the low side, 115,110, 105, battery was a little flat too, it pops out if the lowest carb, also hard starting, have checked spark, reset timing, static and with light, bilge is dry mainly, I am a bit of a tinkerer, so I usually just check and replace things so I know they are spot on.
    Completely understand. I'm just a tinker also. Really enjoy playin (building) these ole mercs. I know u have the yammi but I think compression is inline with the mercs @ around 120ish for a healthy motor leak down will tell better. that 105 cyl may have high leak down #s but idk may not usually if I'm loosing wot rpm or speed I'd look at spark or cyl health possibly carb gunked up. The bottom carb that's spitting? Is that the 105 cyl?

  13. #10
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    Not losing rpm, just running out of puff, I might try the 17 pitch again and get her up to 5900 again, although when the 18 pitch went on I could still turn 5600-5700 and hit the low 40s, the 17 would run out at 38ish. Yes temps are spot on.

  14. #11
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    If u losing mph ,rpm goes along with it. If u gotta drop pitch on prop to get same rpm as other prop. ur losing power

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  16. #12
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    Makes total sense, thanks.

  17. #13
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    Try Chris Carson for the reeds. Sounds like you need them.

    Rock
    Team Junk

    No sparkling wiggles in here, only dump truck grinches.

    "Screamin Heathen"

  18. #14
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    Quote Originally Posted by rock View Post
    Try Chris Carson for the reeds. Sounds like you need them.

    Rock
    Just ordered a set, thanks.

  19. #15
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    Welcome aboard! Bulls Bay boats are built an hour away from my home. Good boats built by people who stand behind their work.

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