Gas mileage

[3Chief]

I'm thinking you are crossing the nefarious "3150 RPM" threshold whilst riding!
If you keep RPMs below 3150 (~72mph), you go 200+ miles until the Low Fuel Light comes on. Above that RPM, gas mileage goes down quickly.

Another thing to ponder is your Low Fuel light sensor. I know when mine used to come on, if I stopped to refill it within a mile or two, it would take 5.6 to 5.7 gallons. Now when it comes on (95k on the odo) I am only getting 5.4 gallons in.

I would do that computer reset (including disconnecting the battery) to rule that portion out.
Then just check your logbook/documentation to see if there are any other trends.

Cheers,
Steve

Ditto, I wasn't sure of the exact rpm but over 4k and my mileage drops to low thirties. At the rally riding two up I was getting 50+ but we were riding much more sedate than I do solo.

[53driver]

Ditto, I wasn't sure of the exact rpm but over 4k and my mileage drops to low thirties. At the rally riding two up I was getting 50+ but we were riding much more sedate than I do solo.

I have been searching for the "bucket RPM" of this motor...
I.e. "I'm low on fuel and I need max range RPM for 5th gear"
It's somewhere between 2300 and 2800.

If I should cruise at 85+ (ha!) my mileage goes down to low/mid thirties also.
I don't have any data for sustained ops at 4000 RPM although that would make for an interesting data gathering expedition....hmmmm.

[3Chief]

I have been searching for the "bucket RPM" of this motor...
I.e. "I'm low on fuel and I need max range RPM for 5th gear"
It's somewhere between 2300 and 2800.

If I should cruise at 85+ (ha!) my mileage goes down to low/mid thirties also.
I don't have any data for sustained ops at 4000 RPM although that would make for an interesting data gathering expedition....hmmmm.

On my return trip from San Diego I did an Iron Butt and pretty well stayed 85-90 from Bakersfield to Tacoma aside from the nasty bit in the Siskiyou's. I stayed in the low 30's for mpg. It was also cold/wet and generally unpleasant for the last half. It was below 50 degrees almost the entire trip and I seemed to remember hitting 28 degrees when I summited the pass.