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Old 07-28-2014, 06:25 AM   #1
HiOctaneOverland OP
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Gas Mileage (or Fuel Economy if you prefer)

Hello Peeps,

I wonder if I could trouble you for some simple information. My 990 ADV (2011 Dakar) sucks down gas like some sort of hydro-carbon vacuum cleaner.

So I can get a feel for how bad (I'm considering a custom remap to fix it), please can you post your gas mileage (or fuel economy for Europeans). It maybe of course mine is normal and I'm just expecting too much!

I'm talking regular highway use, not offroad. My machine is having a good day if I get 32mpg. (Akro cans, but not crazy riding. Just regular highway to/from work etc)

Please could I ask you to specify if you are talking in kms/litres, and miles and US Gallons or Imp Gallons so I can convert the units.

Thanks in advance.
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Old 07-28-2014, 06:38 AM   #2
DirtyADV
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Location: SWEDEN, Skellefteå
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That is about what I get on the new 990R Rottweiler intake and Wings exhaust and some map supplied by CPR Performance and I have NOT used it for commuting most of it is hooligan riding with healthy amount of throttle usage.

Did see as low ...or would you say high fuel consumption at 23 miles / gallon when involving sand riding.

The 950 used for commuting or steady highway at moderate speeds I have seen around 36 miles / gallon at best.

The LC8 might not be the best in fuel economy but you cant measure smiles in miles / gallon.

Guy I share the garage with on a BMW F800GS at least claims he gets above 70 miles to the gallon commuting and sure that would be nice but have tried his bike and would not trade in the KTM any time soon.

Here is a great fuel consumption conversion tool:

http://www.onlineconversion.com/fuel_consumption.htm

/Johan
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Old 07-28-2014, 06:39 AM   #3
roookie1
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Ok, this is Eurostyle km/l

950 adv 2004 akro, 16/42 gearing
Sommerdoor, needles 1 click higher than stock

Up to 18km/l should equal 11,2 miles/0,26 Us gallon..

Lowest 16km/l

Between 39 - 43 Mpg us (Tack så mycka, Johan)
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Old 07-28-2014, 06:52 AM   #4
SmokeRing
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40 mpg (US) on my 2012 Adventure, very consistent. 18,000 miles and stock exhaust system.
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Old 07-28-2014, 06:55 AM   #5
folknride
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Location: Alberta, Canada
Oddometer: 609
My 2010 990 with Wings got 5l/100 km yesterday on an all highway run. That's 47 mpg US I believe.
Interestingly, I'm getting more range with the Wings - just installed a couple of weeks back. Fuel light didn't go on until 302 km.
I hope my to-be-installed-soon Rottweiler doesn't reduce this too much.
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Old 07-28-2014, 07:56 AM   #6
squadraquota
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Joined: Oct 2007
Location: Lowlands
Oddometer: 46
'12 990, LeoVince exhaust, Akra mapping (latest mapping as per sept '13)

highway and secundary roads, between 14 and 16 km/l (33 to 38 mpg)

off road (with 45 rear sprocket) that can drop to 12 km/l (28 mpg)

Few weeks ago I rode the Spanish Pyrenees wit two mates (one Adv 990, Leo's and 45 sprocket and Akra mapping, one 950SE with carb-converted 990 engine). We rode the same tracks, me being a bit slower then the others. Both Adv had equal consumption, within a liter diff when we filled up. The SE usually took 1 or liters more.

I agree with DirtAdv, smiles/gallon cannot be measured.

But certainly the 990 drinks a lot....I can understand that when off roading, especially in slow/technical stuff, sand, etc
I would have expected it htough to do better on the road. Even when I try to behave, there is hardly a noticeable improvement in fuel economy.

Imo this engine could have profited a lot from a second spark plug. The 1190 seems to prove that. But in all fairness, Akra mappings do not help in this respect.....
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Old 07-28-2014, 08:15 AM   #7
OrangeDevil37
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Location: Cincinnati, OH
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my average is 42-46 mpg. the farthest I have went before putting in fuel was 186 miles.
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Old 07-28-2014, 09:11 AM   #8
JoeMongo
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Joined: Dec 2004
Location: SF Bay Area, not exactly dirt moto heaven
Oddometer: 327
Recent trip, mixed twisty roads and major highways. Cruising at times, and thrashing her as hard as I can at times. All numbers are approximately 4 gallon tank averages. 16:45 gearing, Rottweiler intake, 2-1 into a single Akrapovic.

I got as low as 30 mpg, when hauling ash up I5 into a headwind, carrying a boxed exhaust for delivery to a dood in Redding. It acted a lot like those parachutes that they pop out at the end of drag races.

All other tank average mileages were much better, between 33 and 40 mpg for an overall trip average of 37 mpg.

I get much lower mileage around home when I am just tooling around on city streets, say mid 20s. I think my open loop fuel consumption is plenty rich at low rpm & large throttle opening. I can't resist, she just sounds too hot not to do so.

I've finally completed all of my intake and exhaust mods, so it's time to go to work on the maps.

[edit: type on CS sprocket size]
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JoeMongo screwed with this post 07-28-2014 at 10:26 AM
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Old 07-28-2014, 09:26 AM   #9
onewoodsrider
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My 950 with an open intake and single exhaust running 14/45 only gets around 27-31mpg but I am off road and like to use up 1st and 2nd gear a lot. When I have to drone on asphalt I can get up around 36-38mpg. Joe how long does your chain guide last running a 14 tooth sprocket ? That seems really small for that bike.
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Old 07-28-2014, 09:29 AM   #10
NeptuneTriton
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I wanted to see just how far I could go on a tank of gas on my 2013 990 Baja. It's completely stock still, I haven't modified the airbox, changed maps, added exhaust, etc.

So, for highway cruising, I got 212 TOTAL miles out of the tank and that was running on actual fumes! LOL. The tank took 5.3 gallons to fill up, so that gave me a highway average of 40mpg. I wasn't throttling the bike hard, but I did have panniers on it which may have created some drag.
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Old 07-28-2014, 10:28 AM   #11
JoeMongo
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Location: SF Bay Area, not exactly dirt moto heaven
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Quote:
Originally Posted by onewoodsrider View Post
My 950 with an open intake and single exhaust running 14/45 only gets around 27-31mpg but I am off road and like to use up 1st and 2nd gear a lot. When I have to drone on asphalt I can get up around 36-38mpg. Joe how long does your chain guide last running a 14 tooth sprocket ? That seems really small for that bike.
Oops typo. I guess I was thinking about my smaller bike. I edited my post to correct it: 16:45
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Old 07-28-2014, 11:03 AM   #12
renogeorge
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Joined: Apr 2007
Location: Reno
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2007, 40k miles, 38 mpg US. SW7 intake, 2 into 1, re map.
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Old 07-28-2014, 12:14 PM   #13
twisted-hog
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Location: Wet Coast, Vancouver BC
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I've only done 2 tank fulls on my new to me 2012 990R.
Akra exhaust, Akra map & Rottweiler intake and stock sprockets.

Did aprox 220km with a use of about 15.5 litres on each fill.

Most of it in town doing 8okm/hr in 50 zones think that works out to about 33 miles to a gallon.

Not too shabby for a claimed 122hp at rear wheel previous owner had a dyno done.
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Old 07-28-2014, 01:33 PM   #14
Chewy750
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2007, akra's, baffles in,standard map, SAS removed - commuting as low as 35 to the gallon (imperial gallon), loaded up over distance between 45 - 50 mpg motorway speeds (70+)
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Old 07-28-2014, 03:05 PM   #15
craigincali
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2 into 1Akro, 17/45 and I average 39mpg. I commute daily on it. Average 80 mph on the freeway for about 18 miles on way.

If I baby it. Keep it around 70mph and don't Rev past 5k I can get 52mpg... but that's no fun. Off road my milage is HORRIBLE.
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