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Old 05-17-2013, 10:11 AM   #46
tahoeacr
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Joined: Jan 2007
Location: Lake Tahoe
Oddometer: 2,210
Highest milage 68mpg out(downhill with crosswind), 50mpg back uphill. Average 58mpg. This was with NON-ethanol fuel.

To get that I used a 17th front.
Closed loop fine tuned.
Bridgestone Battleaxe street tires.
07 S but with the gel seat to keep lower behind the windscreen.
CPR air filter, custom exhaust, SD cams.
Bosch O-2 sensors(thanks Cyborg).
Speed limits were 50-55mph.
185lbs street clothes 5'10".
Back pack on and tank bag. No side bags or trunk.
Leaning on the tank bag alot to keep Aero up.
Never below 4,000' elevation.

Lowest milage was years ago before I tuned my own maps. Akra map off-road with alot of sandwashes. Fuel light before 100 miles. Something like 25mpg can't remember.

Usually average 52-55mpg highway and 45mpg off-road.

The difference between riding 60mph to 75 mph fuel flow doubles in GPH rate. Measured with FAA approved fuel flow meter. This would very depending on your fuel map.

Higher elevations have less air pressure=less drag. A/F ratio should stay the same. That's what the O-2 sensors are for.

Currently working (very slowly)on re-mapping for 10% Ethanol. Have to richen from 14.7 to 14.1. to achieve Stoich with Ethanol.
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Old 05-17-2013, 10:13 AM   #47
EZ300
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Joined: Jul 2007
Location: ARIDZONA
Oddometer: 982
2007, 990A, FMF Q4's with 34,000 miles

Before I put on the Q4's I was averaging 38 mpg
After the Q4s I am averaging 33mpg


I downloaded a fuel log app onto my smart phone and have been logging my fill ups for over 12 months now.

Overall I am averaging right around 35mpg
My worst was 21mpg (big knobbies off road with lots of sand)
My best was 47mpg (two up loaded with camping gear, I ride very tame with the wife on the back)

It's all in the wrist...
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Old 05-17-2013, 10:33 AM   #48
gefr
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Location: East Med, Greece
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The big question is:

Quote:
Originally Posted by tahoeacr View Post

Currently working (very slowly)on re-mapping for 10% Ethanol. Have to richen from 14.7 to 14.1. to achieve Stoich with Ethanol.
Will you share your maps? at the right price?
Cheers.
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Old 05-26-2013, 06:52 AM   #49
Gustavo.Ramos
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Joined: May 2008
Location: Accross the pond
Oddometer: 855
Last weekend my 08 990 adv surprised me.

steady road riding at 60mph, trunk, sea level, ak cans, o2's on, conti attack tires (love them, standard screen: 53mpg (US)

Could be better!
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Old 05-26-2013, 10:26 AM   #50
bete
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Location: kansas Flint Hills
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07 990 bone stock, I get about 33-34 riding fairly aggressive but if I'm taking it easy or running 70 steady on the highway I get around 45 a couple of tanks at 48. bete
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Old 05-27-2013, 01:28 AM   #51
gefr
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On what map did you manage such milliage?

Quote:
Originally Posted by Gustavo.Ramos View Post
Last weekend my 08 990 adv surprised me.

steady road riding at 60mph, trunk, sea level, ak cans, o2's on, conti attack tires (love them, standard screen: 53mpg (US)

Could be better!
and what mapping do you run?
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Old 05-27-2013, 05:36 PM   #52
Gustavo.Ramos
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leaned out ak map. Isn't perfect, but it's getting somewhere.

Not too lean, no abnormal temperature rising. Not as much powerfull as the stock ak map, but definitly not as much tirsty.
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Old 05-28-2013, 05:14 AM   #53
Schmittenhymer
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Location: Kagawong, Ontario
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Quote:
Originally Posted by Gustavo.Ramos View Post
leaned out ak map. Isn't perfect, but it's getting somewhere.

Not too lean, no abnormal temperature rising. Not as much powerfull as the stock ak map, but definitly not as much tirsty.
So... how do I go about checking/adjusting these maps?

Some have a link with more info?
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Old 05-28-2013, 10:15 AM   #54
RadoR6
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I've heard/read a lot about 990s high fuel consumption and was a bit worried when I bought my bike. Fuel usage on my 990 Adventure R 2012,800 miles,raw engine, run in according to manufacturers' advice but more on the aggressive side ,mixture of town,countryside and motorways.... 48mpg - 5.9l/100km.Can't complain .
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Old 05-28-2013, 04:40 PM   #55
Gustavo.Ramos
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Location: Accross the pond
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Quote:
Originally Posted by Schmittenhymer View Post
So... how do I go about checking/adjusting these maps?

Some have a link with more info?
Check the "TuneEcu - Got tunes?" thread in Orange Crush, plenty of info and tools available. Carefull it's apowerfull destructive tool, don't go changing things w/o thinking enough of what you're doing.

Quote:
Originally Posted by RadoR6 View Post
I've heard/read a lot about 990s high fuel consumption and was a bit worried when I bought my bike. Fuel usage on my 990 Adventure R 2012,800 miles,raw engine, run in according to manufacturers' advice but more on the aggressive side ,mixture of town,countryside and motorways.... 48mpg - 5.9l/100km.Can't complain .
that's 40 mpg (US), which is considered fairly normal for a bone stock mixed ride 990.

Still need to continue to refine mine. ain't there yet.
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Old 05-28-2013, 08:50 PM   #56
tahoeacr
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Quote:
Originally Posted by gefr View Post
Will you share your maps? at the right price?
Cheers.
It's in Tuneboy format. Won't work with TuneEcu. Worse yet, I can't seem to find the best one. Didn't back it up and my lap top crashed. Currently going thru some TuneEcu ones and will have to fine tune one of those.
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Old 05-28-2013, 11:28 PM   #57
gefr
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Glad to hear of your efforts.

You milliage is also hope inspiring. We have all the time in the world for a nice running map.
Thanks.
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Old 11-24-2013, 05:21 PM   #58
rruugger
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Joined: Feb 2007
Location: La Crescenta, Ca
Oddometer: 1,279
I have 19/17 wheel set up , been riding mostly pavement with some lite dirt trails and my light goes on consistently at 165 miles. Although today I left the garage with the fuel lite on rode 24.3 miles stopped for fuel and put 5.3 gallons in with a total of 203 miles on that tank. I've done it before when the bike was brand new with a total of 226 miles on the trip meter for that tank of fuel. I do have a roto fuel cell, but like knowing my limitations :) 2010 990 R
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Old 02-10-2014, 07:48 AM   #59
leesbian
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Location: London, UK
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Quote:
Originally Posted by tahoeacr View Post
Highest milage 68mpg out(downhill with crosswind), 50mpg back uphill. Average 58mpg. This was with NON-ethanol fuel.

To get that I used a 17th front.
Closed loop fine tuned.
Bridgestone Battleaxe street tires.
07 S but with the gel seat to keep lower behind the windscreen.
CPR air filter, custom exhaust, SD cams.
Bosch O-2 sensors(thanks Cyborg).
Sorry for bumping the old thread...

Do the Bosch O2 sensors actually make a difference? is it worthwhile to replace the OEM ones?
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Old 03-15-2014, 10:26 AM   #60
leesbian
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Again, apologies for bumping an old thread...

I've just filled my (2012) 990A for the 2nd time since getting it. It took 15.8 litres, with 177 miles from last fill up (fuel indicator came on at around 165)

I make that 3.475 gallons, or 50.9 mpg. Seems more than reasonable to me!

My bike is absolutely standard (at the moment!), 100% road riding, mostly between 50-80mph

I expect that with this kind of riding, it should be possible to get 200 miles out of a tank
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