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    Did'nt nissan / tohatsu do a 70hp twin once upon...

    Did'nt nissan / tohatsu do a 70hp twin once upon a time?
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    Actually Hounddog may have a point as the...

    Actually Hounddog may have a point as the difference in muffler could line up to the 55hp style lower?
    Maybe the two baffle lower units are designed to be usable on the 60hp twocilinders and the...
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    Mine only has one baffle. I'm a bit puzzled by...

    Mine only has one baffle. I'm a bit puzzled by the one with two baffles as the exhaust gasses have nowhere to go.
    I was thinking about putting in the extra baffle at an angle and remove part of the...
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    The lower unit is on and works. But damn, it's...

    The lower unit is on and works. But damn, it's loud! I'm in a populated area so I have to work on the exhaust to line up.
    Tried a chopper2 18" and got 50+ mph at 6500, not bad. 70604
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    Yamaha 55hp lower on 70hp

    Hello,

    I've just put a 55hp Yamaha /Mariner shortshaft lower on my 70 to build a ces style motor. It works but it doesn't pump water.
    Should I have used the 70 waterpump in stead of the 55? Or...
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