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  1. Replies
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    Good idea squaring off the back of the box I am...

    Good idea squaring off the back of the box
    I am interested in how it will go
  2. I agree with what hightide said . Also porting...

    I agree with what hightide said . Also porting the reed block helps a little to.
    If you do a search I think I had on old thread on it
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    Roflhat that chopper 1 I sold you was the best...

    Roflhat that chopper 1 I sold you was the best chopper I’ve had .
    Tom had a chopper 2 with a et style cut and it ran real good to.
    Merten marine still sell the Mercury cheap 2
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    Try forge marine on face book or pm rolfhat on...

    Try forge marine on face book or pm rolfhat on here
  5. Replies
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    Prolly a 100rpm +/-

    Prolly a 100rpm +/-
  6. Replies
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    When I had my merc 55 I ported mine like this

    When I had my merc 55 I ported mine like this
  7. Replies
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    Nice!

    Nice!
  8. Replies
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    Don’t worry about the serial number mate. It’s...

    Don’t worry about the serial number mate.
    It’s the wme number your after.
    I think wme 57 or 58 are 60 carbs will check later
    52ci carbs will work on 59ci motas
  9. Thread: Transom wedge

    by fs5
    Replies
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    Just put a couple of washers between the transom...

    Just put a couple of washers between the transom bracket and transom on the top 2 bolts
    I found running 3* of positive trim worked best for top speed on my Aquarius and 55 merc
  10. Replies
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    I prefer the forums, Facebook is just one big...

    I prefer the forums, Facebook is just one big page..
    But it’s what everyone is doing now days
  11. Replies
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    If it’s bouncing, I’d check the bottom of your...

    If it’s bouncing, I’d check the bottom of your hull and make sure it’s straight. It might a have a rocker built into the hull .if it has it’ll be near impossible to stop..
    If it’s straight a good Hi...
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    The 50hp have different port timing to the 60 hp....

    The 50hp have different port timing to the 60 hp. You can fit some after market reeds and remove the reed stops and run the washer style retaininer like the 60 hp. Also run the bigger carbs from 60...
  13. Replies
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    9,159

    What hp is your motor? Can you post a pic of...

    What hp is your motor?
    Can you post a pic of your boat
  14. Replies
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    Hi mate you can get the gears lapped so they mesh...

    Hi mate you can get the gears lapped so they mesh together better . Haven’t heard about shimming tighter.
    Haven’t tried tranny fluid in mine yet haven’t been brave enough. They reckon if you do you...
  15. Thread: 60hp Mercury

    by fs5
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    gees can't believe i typed that.. timing takes...

    gees can't believe i typed that..
    timing takes out 6* @ 5000 rpm taking it back to 18*
    max timing is 24* for normal mercs and 22* for seepro's
    found this searching forum for an old thread
  16. Jeff Dunn makes them he is on fb. According to...

    Jeff Dunn makes them he is on fb.
    According to him they make an extra 10 hp on stock motor .
    Some of the duck boat boys are getting well into the 80 hp range with ported motors
    Some guys are...
  17. Replies
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    Jeff , I like your epoxy idea . Sounds like a...

    Jeff , I like your epoxy idea . Sounds like a great way to test a bit of cupping .
  18. Replies
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    I like the look of c , but don't take to much out...

    I like the look of c , but don't take to much out of the leading edge till you try it.
  19. Replies
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    Helps them breathe a bit better , one of the guys...

    Helps them breathe a bit better , one of the guys on here put me onto it.
    Some guys make a little spacer plate up for them.
  20. Replies
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    I fitted boysen on my sea pro years ago . Got a...

    I fitted boysen on my sea pro years ago . Got a bit better excelleration topend pretty much stayed the same.
    Currently running carbon reeds from hydro tech in mine , had Carson reeds in it prior to...
  21. Replies
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    Get onto merten marine mate and get yourself a...

    Get onto merten marine mate and get yourself a 18p chopper . There $325 I think.
    That will get you over 50 mph and works well on v bottom hulls
    I think Ron makes them to .
  22. Replies
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    I'd try sourcing another flywheel from the...

    I'd try sourcing another flywheel from the wreckers and see if you can get some better epoxy or something to glue the magnets on better.
    Or maybe ask about it on a thundercat facebook page
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    Every ones on Facebook nowdays mate

    Every ones on Facebook nowdays mate
  24. Replies
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    So is this face cup the opposite of doing a Texas...

    So is this face cup the opposite of doing a Texas cut?
    I have a slt boat a good Texas cut prop runs real good . Rons face cup props drag there arse a bit out of the hole and top end. Trimmed the...
  25. Thread: 60hp Mercury

    by fs5
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    3,017

    No worries mate, the timing takes out 2* @ 5000...

    No worries mate, the timing takes out 2* @ 5000 rpm so goes from 24* back to 22*
    Rev limiter is @ 5800
  26. Thread: 60hp Mercury

    by fs5
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    5800 rpm can disconnect it real easily

    5800 rpm can disconnect it real easily
  27. Replies
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    They just disconnect a wire on the tohatsu 50....

    They just disconnect a wire on the tohatsu 50.
    You'd be best off asking a tohatsu dealer about the 70 or try googling it
  28. Replies
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    Dunno mate , pretty easy to disconnect on a 50 . ...

    Dunno mate , pretty easy to disconnect on a 50 .
    Be the first thing I'd look at if I was chasing a couple kph
  29. Replies
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    Mate if it was me, I'd try disconnecting the rev...

    Mate if it was me, I'd try disconnecting the rev limiter and leave the 15p on.
    See how many more revs it's got in it. Might pick up a mile or 2
  30. Replies
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    Stupid spell check on phone... I ment sweet as...

    Stupid spell check on phone...
    I ment sweet as in good
  31. Replies
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    That's a decompression port in the sleeve. Some...

    That's a decompression port in the sleeve. Some guys weld them up to increase compression. You can flute the side of a piston to open the ports earlier. Google it there's some pretty beet pics of...
  32. Thread: finished pics!

    by fs5
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    Mate, I just stumbled across this thread . That...

    Mate, I just stumbled across this thread .
    That boat looks horn.
  33. Replies
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    Yeah mate got it of your thread on the tcat...

    Yeah mate got it of your thread on the tcat forum.
    Got a 4 blade Ron hill that I tuned. Runs the same as the trophy sport , but about 4mph faster. Will post a pic later.
  34. Replies
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    this is the texas cut that works on our hulls...

    this is the texas cut that works on our hulls mate.
  35. Replies
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    57,262

    hi mate my best prop i have is a bog stock 12x20p...

    hi mate my best prop i have is a bog stock 12x20p merc cleaver that has just been thinned. my next , is one of your 12x20p over hub cleavers. i have had a bit taken off the leading edge . it is about...
  36. Replies
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    hi ron i sent you a pm about a 12x22 texas cut.

    hi ron i sent you a pm about a 12x22 texas cut.
  37. Replies
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    Wow dose that pump enough water to keep the motor...

    Wow dose that pump enough water to keep the motor cool.
    Great idea mate!
  38. Thread: force 3cyl 25

    by fs5
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    Maybe they were a secret weapon... I nearly...

    Maybe they were a secret weapon...
    I nearly bought one in the early 90's but ended upwith a 25 mariner.
  39. Replies
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    Hey Ron, send me one of those Texas cut 22's and...

    Hey Ron, send me one of those Texas cut 22's and I tell you everything about its performance on my sky and 55merc .
    Got one of your 12x20 p oh cleavers , it pushes 215 kg of crew to a 100 kph easy.
  40. Thread: force 3cyl 25

    by fs5
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    1,716

    force 3cyl 25

    Has anyone ever ran the old force 25?
    It was a 3 cyl cossflow from memory, ran the same 2.3/1 box like the mercs of that era .was a pretty compact lightweight motor.
    You here a lot about the yams...
  41. Replies
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    Mate, is your staino a solid hub or one of those...

    Mate, is your staino a solid hub or one of those new plastic hub styles like Michigan and merc ?
    They all rattle at idle but when the revs pic up a bit they settle down .
    What rpms dose it do it...
  42. Replies
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    rehubbing choppers ?

    can you rehub 15 spline merc choppers and cleavers back to 13 spline using a omc hub?
    thanks
  43. Replies
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    Sharpening the back edge of the cup helps them...

    Sharpening the back edge of the cup helps them grip a bit better to mate.
    Great numbers for a tinny.
    It would crack on one of those little junior mono's.
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    Nice job mate

    Nice job mate
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    A lot of guys don't run the stops either.

    A lot of guys don't run the stops either.
  46. Replies
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    Mate, give Scotty's mobile marine a call up here...

    Mate, give Scotty's mobile marine a call up here at brissy. He can line you up with a nice set of carbon ones.
  47. Replies
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    how to remove oil ijection gear on 60 merc?

    Hi , I want to remove the oil injection gear from a 59ci 60 merc. Dose anyone know how to remove them .
    Thanks
  48. Replies
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    thanks mate , i didn't realize they had a shorter...

    thanks mate , i didn't realize they had a shorter stroke.
  49. Replies
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    52ci and 59ci merc cranks ?

    dose anyone know if a 52ci merc crank will fit in a 59ci motor?
    also dose anyone know the bore a stroke of a 52ci motor?
    thanks
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    59ci merc 1.64/1 box issues

    i've been having a hell of a lot of dramas with my 1.64/ 1 merc box .... its only when i run my 12 x 20p merc cleaver .
    the prop has been balanced and only seems to give me grief when it its catches...
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