RentAGuzzi Motorcycle Rentals & Tours – Los Angeles CA
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Poor gas milage 2013 V7 Classic

Discussion in 'V7/V85/V9 Chat & Tech' started by Don Quixote, Feb 2, 2019.

  1. Don Quixote

    Don Quixote Just got it firing!

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    Hello guys. I have this 2013 V7 Classic purchased second hand with Mistral pipes and a K&N air filter installed by the previous owner. I've learned to be patient and let the bike warm up before going on a ride, etc. However what it shocked me since I've purchased it is the incredible poor gas mileage. The low warning fuel light comes on exactly at 80 miles every single time and every single time I put
    approximately 2.85 gallons which pretty much fills up the tank.
    I understand that the low fuel light comes on quite prematurely on these bikes so there are more than 2 gallons left in the tank... However 80 miles on 2.85 gallons!? That translates in a little more than 28 miles/gallon.
    I use 93 octane gasoline by the way and I do my riding in city traffic. The bike sounds great, no idling issues and once is warmed
    up runs great.
    I do not know if previous owner did a re-mapping... But from what I understand Mistrals do not require such and I doubt a K&N filter requires one as well.
    Any assistance/ideas appreciated. Thanks
     
  2. Kevin.NZ

    Kevin.NZ Cruisin' Guzzisti

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    Why do you wait for it to warm up? I think best practice is to get on it, start it and go. What do the plugs look like , they are a good indicator of fuel consumption, Are you comparing US v UK gallon. Just a thought.
     
  3. john zibell

    john zibell Moderator Staff Member GT Famiglia

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    Agree with Kevin that it is best to just start off easy and not have the bike sit running. Now what is the state of tune? That is has it been serviced and everything set up correctly?
     
  4. vagrant

    vagrant High Miler GT Contributor

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    No! Keep warming it up for 2 minutes. If you don't it will fall flat on it's face in the middle of an intersection and u become splat!
    Start with a new stock filter and make sure the Po didn't disconnect the temperature or atmosphere sensor. Check the valves and do new plugs and plug connectors. Look them up here. Lots of info then get it hooked up to a computer. I suspect the Po messed something up. It should get a min of 45 us gallon.
     
    Poppe likes this.
  5. Don Quixote

    Don Quixote Just got it firing!

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    In answer to your questions... I'm using US gallons, premium fuel @ about $3.50/gallon. The reason that I'm waiting for the bike to warm up a little is that, especially in this weather... mostly sub 30° Fahrenheit and the V7 being kept outdoors, if I were to just jump on it and go the Guzzi will not be too happy.
    Placing it in 1st gear and going thru the other gears it's a little rough due to high oil viscosity.
    So after warming up the bike a little, putting my helmet on, gloves, etc I get up on it and go taking it easy for a few minutes until I hear the reassuring "clank" produced by placing it in 1st gear.
    As for the spark plugs I didn't have the chance to inspect due to the weather. Too cold/windy recently here in NYC but once weather permitting I will do so. The previous owner mentioned that service was done prior to the purchase. Engine oil is clean and at the proper level.
    To note that the bike has 24k miles, and it runs great. No idle issues whatsoever but it "pops" occasionally when downshifting which I rather enjoy. The only problem is the poor gas milage.
     
  6. V700Steve

    V700Steve High Miler GT Contributor

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    The early single throttle body bike had to warm up exactly 2 min.. Guzzi addressed the issue and had a map revision. Have to have software & cables to see what's in there. You could also go to a dealer to check on a newer map, should be a choice in the PADS software if it see's a new map available.
     
  7. Don Quixote

    Don Quixote Just got it firing!

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    Yup... 45 miles/gallon sounds right. I'd be happy with 40. The ambient/atmosphere temperature sensor is functioning fine. Just wondering if the K&N filter, Mistral pipes could have such a huge impact on the milage.
    And yes I will hook it up to a computer shortly to diagnose the problem.
     
  8. V700Steve

    V700Steve High Miler GT Contributor

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    If you have a 5 speed trans original map #3523V702 was revised to #352BV738 & #352BV737 for Stones
    if you have a 6 speed trans original map #4533V740 was revised to #4533V795 then to #4533V796 that could have to do w/ABS & T/C
     
    Last edited: Feb 3, 2019
  9. Don Quixote

    Don Quixote Just got it firing!

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    I have a 5 speed no ABS this being a 2013.
    So the best bet is to visit the MG dealer and see what mapping exists and do an update mapping if necessary. Any idea what this might be in $ terms?
    Thanks
     
  10. V700Steve

    V700Steve High Miler GT Contributor

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    The shop I worked at it was minimum 1/2hr. Only takes 15min or so, then reset tps or whatever relearning there is on it.
    You could also get a flash box from the store here on GT, get a map and reset all w/o dealer.
     
    Last edited: Feb 3, 2019
  11. Don Quixote

    Don Quixote Just got it firing!

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    I'll do this asap. Thanks again
     
  12. tonUPRacer

    tonUPRacer Cruisin' Guzzisti GT Contributor

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    I consistently get 50 mpg on my 2013 no matter how bad I flog it. I have the upgraded GT map, standard paper filter, arrow pipes and EVAP in place.
     
  13. M0T0Geezer

    M0T0Geezer Cruisin' Guzzisti

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    The Previous Owner may have installed a "PowerCommander" and/or some kind of "O2 Optimizer" on your bike. Check and see.

    That's what one of the POs had done on my 3rd-hand 04 Breva 750cc. It was only getting high 30s mpg and it ran like krepp to boot. Bucking, surging, bickfiring, etc.

    Removing the aftermarket electronic junk was the first thing I did to restore the engine to a known state.
    Then I had Todd here @ GuzziTech reflash the ECU. Perfect behavior after that.

    I see you're in NYC - approx sea level. Bikes & cars get worse mileage in the lowlands than at higher altitudes.
    I put 50,000 on my Breva at 5,000+ ft altitude in the Colorado mountains. Always got mid-50s mpg.

    Also, "premium" gas gives a few less mpg than "regular." I always ran mine on 85 octane regular in the mountains, At sea level you can et along fine with mid-grade octane.

    Once sorted, that little bike became my favorite among many. Believe it.

    This file is full of info that I gathered and used for my Breva. I will help you, too:

    dansher.com/bikepix/Guzzi/_V7_fyi.txt

    ' Geezer
     
  14. Don Quixote

    Don Quixote Just got it firing!

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    Thanks to all for the infos & input.
    Btw the bike doesn't have any electronic "add on junk" and I have used 87, 91 and 93 octane with the same poor milage result.
     
  15. Wisconsin v7 Racer

    Wisconsin v7 Racer Cruisin' Guzzisti

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    But maybe the previous owner installed a bad map from a not so good source.
     

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