Posts: 3474
Location: Elk River, Minnesota | Hya!!
Absolutely I would!! If you have only run 91 octane through it before then, definitely carry a couple extra fuel filters for your engine for the summer... All the stuff that non-oxygenated fuel leaves behind will eventually come through the system... Best to protect your engine from it and play on the safe side of things.
I Just changed rigs last year, but for the previous 20 years, I was running carbed 2 strokes dating back to 1988 and had no issues...my first purchased motor was a 1988 Johnson 15 hp 2 stroke, then an 88 25hp 2 stroke, a 50hp 2 stoke, then went to Yamaha with a 90 2 stroke, back to a johnson 90hp 2 stroke, to what I now finally have...an evinrude Etec 150.
All have been run on 87 octane for the majority of the time with me....absolutely no issues at all in any of them.
Maintenance is key....stabilize the fuel, run fuel from pumps that are frequently filled up for fresh fuel, etc.
Steve
Edited by VMS 3/30/2019 7:47 AM
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