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  1. Tarver put out pretty much the same thing a while...

    Tarver put out pretty much the same thing a while back, they help. I think it is more about allowing the airflow to straighten out rather than increasing volume. The reed plate and intake are very...
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    No, that's the correct tiller. Comes up above...

    No, that's the correct tiller. Comes up above the top of the motor when folded up
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    No need for the whole reed plate, just carbs and...

    No need for the whole reed plate, just carbs and 50/60 reed retainers. From there you can have the flywheel lightened, a tuner made, intake/reed plate modified and port work.
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    That is without a doubt a 59"

    That is without a doubt a 59"
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    If the coil wires go to a box on the side it’s a...

    If the coil wires go to a box on the side it’s a 52” if it has 3 individual coil packs (cdms) right next to the plugs it’s a 59”
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    There were quite a few 59" 40s made with pull...

    There were quite a few 59" 40s made with pull start, I've got 2 of em. A pull start 52" is actually really rare, especially in america. Get a set of 824854c1 carbs and a set of .058 jets, they're...
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    There are some early 52ci 60 carbs that don’t...

    There are some early 52ci 60 carbs that don’t seem to perform as well think their number is 706826, they have a shorter emulsion tube and use a .070 jet stock. 824854c is the revised carb and takes a...
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    You sure it's a 52? But either way those aren't...

    You sure it's a 52? But either way those aren't 60s. You would see some benefit going to a set of 60 carbs, preferably the 3301-824854c series ones. Put up a pic of the whole motor, might be a 59
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    Put up some pics of it, I don't think the 52" was...

    Put up some pics of it, I don't think the 52" was available as a 40 unless it was a jet, and if it was a jet motor it most likely has 60 carbs. Pics of carbs too, I should be able to tell what you...
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    70 horsepower is easily attainable with some...

    70 horsepower is easily attainable with some porting on the 59ci motor. Guys have adapted the new merc big tiller as well as the yamaha big tiller to these motors, both have the shifter and trim...
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    We have parts mailed in all the time here's a 40...

    We have parts mailed in all the time here's a 40 Yamaha flywheel

    http://i179.photobucket.com/albums/w295/wingnut3k/15680FA0-A03B-49BE-AC22-C175081C84FD.jpg
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    Where are you located? I'm working in a shop now...

    Where are you located? I'm working in a shop now that can handle all you need done. Your biggest gains without going in to the motor will be getting the compression to 150psi or so and cutting the...
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    I don't really care for Boyesons as I feel the 2...

    I don't really care for Boyesons as I feel the 2 stage design can limit flow
  14. Thread: 60hp Mercury

    by hightide
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    Don't have an answer for you, interested as well....

    Don't have an answer for you, interested as well. I don't think mine has ever spun past ~7300, thats running a 23 cleaver and I'm turning the same rpm with a 19 chopper. Seems like something is...
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    Old post but I'm interested in this as well. ...

    Old post but I'm interested in this as well. Anyone have any insight?
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    I have the harbor freight one, it does pretty...

    I have the harbor freight one, it does pretty good but there are some drawbacks. You have to reset it a few times to get a job done as it only runs for a max of 8 minutes and it won't fully submerge...
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    59ci Merc Carbs

    I'm having trouble finding a set of 60 carbs for my 59ci 40 and was wondering if the carbs from a 52ci 60 would work. Or if there are any other carbs that would work.
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    Since this is a thread about the differences in...

    Since this is a thread about the differences in the 59ci mercs, what is the difference in the 40/50 and 60 cranks? Does the 60 have more stroke?
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    So it wouldn't be worth changing? Or are you...

    So it wouldn't be worth changing? Or are you saying it will fit fine?
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    I have a 50 with 60 carbs currently and am...

    I have a 50 with 60 carbs currently and am wanting to swap to the 60 tuner(part number 8m0045214) and modify it like I've read about here, does anyone have specifications of exactly what they did to...
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