31 mgp?!!
Tourer
Joined: Apr 2010
Posts: 345
Likes: 0
From: Vermont
Stock 09 got 42 mpg, FM stage one now gets 36. I'm going to add a switch and run the mpg map as well. The biggest factor is how heavy your right hand is. Check you spark plugs. They should be very light in color.
Thread Starter
|
Cruiser
Joined: Aug 2007
Posts: 163
Likes: 6
From: Conway, Arkansas
I'm not running a cam. Just stock 103. I am running pure city mileage. Stop and go. Did not run any highway. With that, I figured i'd get low, but around 35 - 38, not 31. I guess my question is, should I worry? not a huge wrench here, and its my first harley. So excuse the ignorance. I think I'll give the tech that tuned it a call and see what he has to say about it running such bad MPG. Hoping to put some highway miles on it and see what i'm running there. But even city miles, 31 seems low.
Banned
Joined: Apr 2008
Posts: 2,492
Likes: 10
I have found it is nearly impossible to get the same amount of fuel in the tank of these new bikes to do an accurate mileage check. It is incredibly frustrating...I think the only way to do it would be over several tanks and do an average MPG.
Mark
Mark
Thread Starter
|
Cruiser
Joined: Aug 2007
Posts: 163
Likes: 6
From: Conway, Arkansas
Yes good point!
Elite HDF Member
Joined: Nov 2007
Posts: 4,646
Likes: 40
From: Midtown Tulsa
I average 38 on my Ultra....
Fuel Moto'd PCV
Jackpots
Ventilator air cleaner
me and lotsa crap on/in my bike
Brand new and unmolested, I got around 43...YMMV...
Fuel Moto'd PCV
Jackpots
Ventilator air cleaner
me and lotsa crap on/in my bike
Brand new and unmolested, I got around 43...YMMV...
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Road Warrior
Joined: Aug 2010
Posts: 1,788
Likes: 5
From: Tennessee
I agree with whoever said get a dyno tune. Something isn't right. Unless you're runnin 85-90 you should be kockin on 40's door. On a 500 mi trip last week i got 30 on the first half cruise set on 85. 37.5 on the way home cruise set on 75. Proof that your right hand makes a huge difference. 06 ultra 88ci 203 cams rinehart TDs 84 hp 92 tq. I ride pretty regular with stock 103 ultras and they average 40mpg.
Cruiser
Joined: Jun 2010
Posts: 113
Likes: 0
From: Nebraska
31mpg in town..is prob not to far off....especially if you like hearing your new pipes 
But if your on the highway and refrain from rollin the throttle back and passing people all the time that is way low!
But if your on the highway and refrain from rollin the throttle back and passing people all the time that is way low!