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  1. Replies
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    Yamaha 15 hp , 2 stroke , shaving head

    Would like to know the max. I can shave the head of that little 2 stroke , 15 hp engine .. using 93 octane non ethanol gas .... Thanks
  2. Yamaha v6, 200 hp, 6G5 engine (thermo restrictor washers)

    Hi, just want to know if somebody has experience using a "thermo restrictor washers" instead of oem thermostats ..... on a Yamaha v6 , 2 stroke engines ??? . the salty wáter in my área is...
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    Bunny Ears......!!!!

    Bunny Ears......!!!!
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    I´m asking about the "lenght tube" from the thru...

    I´m asking about the "lenght tube" from the thru exhaust props....... shorter or long ???
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    Merc Thermal Air Valve

    Using in a set of WMH-1 carbs ( Merc 2.5, 200hp, carb, 1992) do I need mto keep that fancy valve. If I removed the valve, Do I need to keep the carbs fittings Open or Closed ???

    Thanks
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    Prop Exhaust tube lenght

    I would like to know if there´s any advantage to short the long exhaust hubs on stainless Steel thru hub props.

    Thanks:D
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    Good results !! On my OMC 25 hp . I did all that...

    Good results !!
    On my OMC 25 hp . I did all that mods . and found the best reeds is a CCMS with a ported cages and stock reed stoppers ( don´t mod that !!!...cost me a new sleeve!!), Cut & balance...
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    Merc Thermal air Valve

    What´s the hell is that valve ???? :confused:
    Can I able to put in the trash that valve .
    My engine has a WMH-1 carbs .

    Thansk
  9. Thread: 25hp omc

    by DonChichoJr.
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    Cdi part #

    The omc 35 hp, manual start, 2 cyl. : Cdi , no limiter pack : #113-2285


    don;)
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    Merc 25 Hp

    I Have One, 1995, Mercosil., With A Set Of Wiseco, 0.040" Pistons,
    The Intake Was Ported And The Reed Cage Was Laped & Ported Using A Set Of Boyesen . The Exhaust Releiving Holes Was Tapped At The...
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    Wpc Decal

    Waohhh!!!. A Nice Decal ( Wpc ). I Would Like To Put One On My Boat Deck !!!

    Refgards,
    Don;)
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    Hi Perf Head

    WAOHHHHHH!!!!. I DREAM WITH ONE OF THAT HEAD !!!!:D
    MAKED FOR MY OMC 25 HP, 2 CYL. MAYBE, ANTHONY WILL MAKE, SOON, ONE !!!! OPSSSSSS !!!! HAHAHAHA !!!! ..... I'LL WAIT !!;)

    REGARDS,...
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    Jim Ruck

    In Oshkosh-wi. ...... #1

    His Machine Work Is Like "art" !!!!!!!!!! A++++.:d
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    Omc 25 Hp , Thermostat Or Not ?

    Hi, I Would Like To Know If Running An Omc 25 Hp, 1999, 2 Cyl. Without The Thermo. Would Be O.k.
    I´m Running That Ponny On A 12' Small Boat , "always" At Full Throttle . The Engine Only Run On A...
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    omc 25 hp mods

    How Much Can Are Able To Mill The Head ??, Using 93 Octane Gas & 30 Degrees Timing ? On That 1990, 3.000 Bore Size Pistons .

    .020" Or Maybe .030" ??

    Regards,
    Don;)
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    Vertex Piston Rings

    I'm Looking For 12ea. Vertex Pistons Rings, .030" For A Merc Vertex Pistons, 200 V6, 1993 .

    Who Are Selling A Vertex Pistons ?

    Thanks,
    Don
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    Fast Fred

    WHAT DO YOU MEAN WITH : 120 DEG. OFF # 1 .. .:rolleyes: ????

    THANKS,
    DON
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    Crank

    On Those Modular Cranks ( Tohatsu & Yammis ), What's The Maximum Tolerance, To Be Balance, Between The Center Bearing And The End Bearings ?

    Any Trick To Be Easy That Work ??

    Where Can I Get...
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    Thanks !!!!!! Don

    Thanks !!!!!!

    Don
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    Omc 25 H.p. - Max. Timing-

    I WOULD LIKE TO KNOW WHAT'S THE max. timing FOR AN OMC 25 H.P., 2 CYL, 2000 . .

    THNAKS,
    DON
  21. Mike Ray's Vs Allison Vs Johnson Style Hydrofoil

    Which One Are The Best One ????????

    Thanks,
    Don
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    Thanks A Lot !!!!!!!!!!!!! Don

    Thanks A Lot !!!!!!!!!!!!!

    Don
  23. Replies
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    I Would Like To Shaved .030" , And Using 50/50 ,...

    I Would Like To Shaved .030" , And Using 50/50 , 95 Octane Gas/ Av Gas . .030" It's Enough To Feel The Difference ???

    Don
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    Thanks For The Reply. What Brand Of Octane...

    Thanks For The Reply.
    What Brand Of Octane Booster ??

    Don
  25. Replies
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    Omc 25 H.p.,

    ....and How Much Can I Be Able To Shave The Head ? , For 95 Octane Gas ???


    Thanks,
    Don
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    THE CARB DOESN'T HAVE A HI-SPEED ADJ. THE CARB...

    THE CARB DOESN'T HAVE A HI-SPEED ADJ. THE CARB USE A FIXED HI-SPEED JET . THE STOCK ONE IS A 67d AND I INSTALLED A 69d .

    THANKS,
    DON
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    Merc 20 & 25 H.p. ( '83 To Present), Are The Same...

    Merc 20 & 25 H.p. ( '83 To Present), Are The Same Block.
    In My Case. I Own A Mercosil Block, 25 H.p., Sea-pro Model. That I Bored To .040 . I Still Waitng From Wiseco For The Pistons. They Are...
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    DOES SOMEBODY HAVE TESTED A "HOTSHOT" PROP ?...

    DOES SOMEBODY HAVE TESTED A "HOTSHOT" PROP ? (MADE BY TURBO PROPS ), FOR THOSE SMALL PONNIES .

    ARE THOSE PROPS BETTER THAN THE OMC SST's???

    REGARDS,
    DON
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    Thanks, By The Way......, I Will Try To Install...

    Thanks, By The Way......, I Will Try To Install Those Fancy Small Plastic Reeds (boyesen) .

    Don
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    .................or using a SPLIT FIRE 264D PLUGS...

    .................or using a SPLIT FIRE 264D PLUGS ??!!

    REGARDS,
    DON
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    The 25 H.p. & 30 H.p., Carb Are The Same. It's...

    The 25 H.p. & 30 H.p., Carb Are The Same. It's Only Change The Medium Jet And The Hi-speed Jet , That I Already Installed It ( 30 H.p.) . I Dodn't Know If Using Hi-octane Gas, Can I Go Up With The...
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    Omc 25h.p.

    I JUST BOUGHT AN OMC 25 H.P., 1998, SHORT SHAFT, IN A+ CONDITION.
    HAS ALREADY DONE AN EXHAUST RELIEVE HOLES IN THE L/U .

    I WOULD LIKE TO IMPROVE THE TOP END OF THAT PONNY .

    THE CARB # IS : ...
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