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<blockquote data-quote="turbotodd" data-source="post: 369651" data-attributes="member: 7376"><p>RPM is 5500-6000 max. That is what Yamaha calls for obviously on a stock motor. So many of them get modded, and then the factory recommended max rpm goes out the window at that point.</p><p></p><p>Powertech SRA3 13" is what I would recommend. Look for low 30's at 5600-5800 RPM. 600 RPM is pretty close. They will idle down great. Of course that's assuming it's not been modded. Start porting the block, bigger carbs, etc, and they generally won't quite go that low after mods.</p><p></p><p>Mods? How much power do you want? They'll make 80 hp+ but reliability goes down the tube. Guys tend to argue that but trust me, once you get to a point, you work on a modded motor more than you use it.</p></blockquote><p></p>
[QUOTE="turbotodd, post: 369651, member: 7376"] RPM is 5500-6000 max. That is what Yamaha calls for obviously on a stock motor. So many of them get modded, and then the factory recommended max rpm goes out the window at that point. Powertech SRA3 13" is what I would recommend. Look for low 30's at 5600-5800 RPM. 600 RPM is pretty close. They will idle down great. Of course that's assuming it's not been modded. Start porting the block, bigger carbs, etc, and they generally won't quite go that low after mods. Mods? How much power do you want? They'll make 80 hp+ but reliability goes down the tube. Guys tend to argue that but trust me, once you get to a point, you work on a modded motor more than you use it. [/QUOTE]
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