I know I should just live with the lousy mileage on my Norge but it is low enough (35mpg) to make me think something is not right. I am the third owner of this bike and I am wondering if the PO made any modification. What would I look for if someone had installed one of those cheater kits that tells the bike it is leaner than it actually is? I have had the tank and airbox off and not noticed any wiring that looked suspect but I wasn't looking either. I may check the shop manual to see how to test the exhaust sensor. Bike runs fine.