My 2016 Suzuki 140 Owners Manual calls for 87 octane ethanol fuel as long as it is no more than 10 % ethanol. I still put Stabil Ethanol Treatment in mine. I've honestly never seen any difference in performance when I was running ethanol or non-ethanol fuel.

My new Excel Bay Pro 220 will have a Suzuki 200SS on it. I know it calls for 91 octane but no idea on ethanol or not.