That is correct both the non efi and efi are the same as far as engine noise is concerned. The efi fumes are indeed a little less intense with the exhaust fumes while riding with the windshield in the up position but some fumes are still present. The reason yamaha switched to efi was for a few reasons. A little better emissions for less pollution, better fuel mileage, better starting no choke needed for the northerners in cold temps, and lastly less issues with the ethanol fuel gumming up the jets in the carb. Ethanol can still be a problem on the injectors but not as bad as the carb. If you can get a carb cart for 600-700 cheaper than the efi i would get the carb if its 500$ or less get the efi.
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