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Modifying a Tohatsu M40D
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<blockquote data-quote="Lil&#039; Blue Rude" data-source="post: 340537" data-attributes="member: 4627"><p>think these motors have different carb then the 50hp so you could bolt on a set of them, or there might be a restrictor plate behind the carb. If that's the case all you'd need to do was remove the plate and install 50hp jets. Add some fiber reeds like Chris Carson's or TDR's. You can always shave a bit off the head to get compression up to around 145psi-150psi. probably .015"-.030" would be a good place to start. Make your own tuner. If it's rope start have the flywheel lightened by removing the ring gear. Then if you want to get wild start porting, add some finger ports.</p></blockquote><p></p>
[QUOTE="Lil' Blue Rude, post: 340537, member: 4627"] think these motors have different carb then the 50hp so you could bolt on a set of them, or there might be a restrictor plate behind the carb. If that's the case all you'd need to do was remove the plate and install 50hp jets. Add some fiber reeds like Chris Carson's or TDR's. You can always shave a bit off the head to get compression up to around 145psi-150psi. probably .015"-.030" would be a good place to start. Make your own tuner. If it's rope start have the flywheel lightened by removing the ring gear. Then if you want to get wild start porting, add some finger ports. [/QUOTE]
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