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In the Yamaha outboard lineup, for 115 hp and up there is a grey model and then there is a model that is an SHO/VMAX.. Can anyone explain the differences to me other than the paint job?

Does one have a different rpm range, is one built to be more rugged than the other or are the differences more subtle?

Thanks for your input,

Fred

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The VMax is a high output version of the i4, just as Evinrude makes the Etec and the Etec HO, and Mercury makes the Optimax and the Optimax ProXS. It's like going to eleven

 

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Thanks slonezp.  But in technospeak what changes make it high output? ?

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Don't quote me on this but I believe it has beefier valves, a beefier gear case which allows it to run at a higher RPM. Top end is a little faster.   

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