26 mpg - wtf ??

[Hellswraith]

So I got me a new 2007 Heritage Softail classic late last year . I was thinking - sure I'll get way better gas mileage than my Old 2000 Fatboy . Should I be surprised that Im only getting 26 mpg then ? The bike is suppossed to get 34 mpg in town and 53 mpg on the highway .. It has a 5 gallon tank and I get 130 miles before my yellow almost out of gas light comes on ..

Iv'e got a little over 3800 miles on it now and I have Vance n Hines Big Radius Pipes , a Sert , and a high flow air kit installed . I didnt have the cash to take it in for the 500 or the 1000 mile tuneup . Im planning on waiting for the 5k one as Im almost there now . I did change the oil at 500 miles and 3000 miles . Im curious if the Sert needs to be reflashed or something ..

26 mpg just dont seem right to me ....

:evil:

[RamMedic]

I am not sure what the problem is, but 26 mpg does seem way off based on the modifications you have done to the bike.

[Squirrel]

Hells is that MPG just cruising or riding hard? If it is cruising then you need to check that map cause something ain't right there. Especially with a 6 speed in it. Sounds like you are running rich, whats the Air /Fuel mix set at?

[jetmonkey]

Hells, you Mofo...go to the dealer that installed that SERT and ask for a copy of your MAP. They usually keep them on file and if you bring them a data CD they will load it for you. That is the only way to know what kind of fuel ratio and ingition settings you got. Once you get that disk, I can change anything you want on it, and I'm getting good at it after dicking around with my bagger for a couple of years.

[CoolMaker]

You definitely need to take it back and complain, that is no where close to normal. :wink:

[TexasRed]

Let Jet work on it We get +/- 40mpg on our bagger, fully loaded, and 2-up running 70mph.

[jetmonkey]

Hi Red!!!! I'll be glad to work on Hell's bike. I'm getting just about the same mileage as you but I ride one up most of the time, carring a lot of tools, beer, rain gear, beer, leathers, beer, change of clothes, beer...you get the point...that bike is HEAVY all the time.... :mrgreen:

[Hellswraith]

OK deal then Jetmonkey - I'll see if I can get a copy of it .. Now the problem lies - do you travel ??


:mrgreen:

[Hellswraith]

Just had some thoughts on the way home from work this am .. I have noticed that my bike will *cough and spit* in 2 situations .. If Im in 4th gear and between 40 and 45 mph , and in 6th gear when Im between 70 and 75 mph . All the other gears never have hiccups so I wasnt sure what this might mean but figured I'd post it here in case someone might know ...

Good Night Fookers !!!!


:shock:

[ClassicEg]

What do your plugs look like? Is it always a certain RPM range?