Jethro, I have heard both good and bad with 93. I have used
93 since the bike was new in 03 with a tank of 89 sometimes.
I changed over to 89 about 2 monts ago think the 93 could be the culprit. No dice same problem,back to 93.
Mike

It's not speeding till you get pulled over.
https://www.youtube.com/watch?v=Bqa1s4jhkQ8