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Modifying a Tohatsu M40D
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<blockquote data-quote="Lil&#039; Blue Rude" data-source="post: 340560" data-attributes="member: 4627"><p>Exhaust tuner. The exhaust system for the motor in the mid sections. Most are a straight shot down with no taper or flare. Most people that build a tuner make them like a cow bell. smaller at the top bigger at the bottom, most are square. Most are 7"-9" long depending on what your wanting. Longer tuner has better bottom end and shorter has better top end. Look up a tuner for omc sst60 and you can look up hydro tec web site and check out the tuner for a 40-50hp Yamaha since those motor are some what similar. That will give you an idea about them. Most people around here get a tuner shaved head and carb work done. You'll have to rejet your carb if you build a tuner for it.</p></blockquote><p></p>
[QUOTE="Lil' Blue Rude, post: 340560, member: 4627"] Exhaust tuner. The exhaust system for the motor in the mid sections. Most are a straight shot down with no taper or flare. Most people that build a tuner make them like a cow bell. smaller at the top bigger at the bottom, most are square. Most are 7"-9" long depending on what your wanting. Longer tuner has better bottom end and shorter has better top end. Look up a tuner for omc sst60 and you can look up hydro tec web site and check out the tuner for a 40-50hp Yamaha since those motor are some what similar. That will give you an idea about them. Most people around here get a tuner shaved head and carb work done. You'll have to rejet your carb if you build a tuner for it. [/QUOTE]
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Modifying a Tohatsu M40D
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