GAUGE ISSUE coulod explain mileage

[gordo2050]

So the wife rode her 2011 RT over Sonora pass this weekend, enroute to Topaz Lake. She has never gotten the mileage I get on my harley, but this was ridiculous. 21 mpg????
Went to start it this morning, it throws a check engine light. Shut it off, restart, good to go.
Coming home, the boss starts to diagnos on the run. She realizes that her ANOLOG Tach, which she trys to live by, is showing just about 700 RPM LESS than the digital tach. Based on her attemps to follow suggestions here, her 5,00 to 6,000 rpm shifts ate now closer to 6000-to 7000 rpm. THAT could be the fuel mileage issue.

Now the bigger issue, After a short break, we were back on the road, and the anolog tach went up to 6000, and just hung there. Even when she pulled over to check in out, motor at idle, tach at 6000.
Stopped for fuel, mileage was a bit better. Restart the the spyder, tach seems to be fine. Pretty much matching the digital one.

Anyone have any ideas, or do I need to take to the dealer? She is getting ready for Spyders in the Redwoods, and is afraid something major is wrong...
:banghead:

 

[SpyderAnn01]

Sounds like something for the dealer but I wouldn't think it should keep her from going on her trip. She must have good eyes because I can't see the analog tach or speedo I have to look at the giant digital display!

 

[AeroPilot]

Our 2011 Analog tach hung on the plastic cover

So the wife rode her 2011 RT over Sonora pass this weekend, enroute to Topaz Lake. She has never gotten the mileage I get on my harley, but this was ridiculous. 21 mpg????
Went to start it this morning, it throws a check engine light. Shut it off, restart, good to go.
Coming home, the boss starts to diagnos on the run. She realizes that her ANOLOG Tach, which she trys to live by, is showing just about 700 RPM LESS than the digital tach. Based on her attemps to follow suggestions here, her 5,00 to 6,000 rpm shifts ate now closer to 6000-to 7000 rpm. THAT could be the fuel mileage issue.

Now the bigger issue, After a short break, we were back on the road, and the anolog tach went up to 6000, and just hung there. Even when she pulled over to check in out, motor at idle, tach at 6000.
Stopped for fuel, mileage was a bit better. Restart the the spyder, tach seems to be fine. Pretty much matching the digital one.

Anyone have any ideas, or do I need to take to the dealer? She is getting ready for Spyders in the Redwoods, and is afraid something major is wrong...
:banghead:

We had the RT back under warranty at around 2700 miles when our tach needle also hung. The dealer replaced the whole instrument cluster under warranty and we noted the 2700 odd original miles on a sticker under the seat as the new odometer started at 0 miles.

As far as mileage, when we're pushing a headwind on the interstate we sometimes get 25 MPG or so. Usually around 30 MPG at 65 mph on the blue highways. It depends on how full you fill it at the refill. The top 2" of fuel seems to change the total by about a gallon, and the corresponding mpg by about 20-25% on a 4 vs 5 gal fillup.:sour: