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Tohatsu 9.9 to 20hp
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<blockquote data-quote="blackshear" data-source="post: 478157" data-attributes="member: 24376"><p>I converted my 9.9 EFI to a 20 with a new module and removing the restrictor plate. I also had to buy a different prop because I was turning to many RPMS. The 9.9, 15 and 20 come with different props from the factory so running a stock 9.9 prop on a 20 would not be recommended unless you have a heavy boat. The addition of a Tiny Tach tachometer will make sure you are operating in the normal RPM range. I haven't had any issues with my motor so far and the difference in performance is huge.</p></blockquote><p></p>
[QUOTE="blackshear, post: 478157, member: 24376"] I converted my 9.9 EFI to a 20 with a new module and removing the restrictor plate. I also had to buy a different prop because I was turning to many RPMS. The 9.9, 15 and 20 come with different props from the factory so running a stock 9.9 prop on a 20 would not be recommended unless you have a heavy boat. The addition of a Tiny Tach tachometer will make sure you are operating in the normal RPM range. I haven't had any issues with my motor so far and the difference in performance is huge. [/QUOTE]
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Tohatsu 9.9 to 20hp
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