Join Date: Jun 2011
Location: East Central Iowa
Get yourself a tuner, ie: Thundermax, Power Vision, TTS etc and tune it to run on what ever you can get. I've got the Power Vision, got a tune that runs really nice on 87 octane, working on an 89 octane E10 tune now. I can get 91 here sporadically, but it's usually ethanol so I prefer not to use it.
Part of the reason I can get by with 87 octane is that I put the SE204 cams in which have a later intake close number, which lowers the cranking compression a bit while still giving a considerable power boost.
The 87 runs just fine, and gets better mileage than any of the ethanol blends.
In the mean time, your bike has knock sensing ignition, it will retard the timing when it senses pinging, hurts performance a bit, but save the motor.
2015 RGU CVO........under continuous change......