Just wondering what grade of gasoline you all use. I've used nothing but 87 octane {regular} and 13000 miles no problems. Anyone have any thoughts? I have buddies that swear by higher Octane.
2022 stock Z650 no stalling but rare backfires and pops with 91 and above octane (USA) drained the tank and filled with 87 and no backfires so far. only 1400 miles on it.I am actually trying to run out this tank so I can return to 87. I've been using 93, and had a number of backfires (as well as stalling issues) which might be related.