Poor Fuel Consumtion

Discussion in 'Technical Help' started by Chris Ryder, Jun 11, 2019.

  1. Chris Ryder

    Chris Ryder Member

    May 10, 2019
    19
    8
    Blackpool
    #1 Chris Ryder, Jun 11, 2019
    So , I got new brushes and brush holder on my Tiger xc 800 , that seems to have cured the problem . Trouble is I'm still getting poor fuel consumption , fill up and the gauge reads ' 140 miles to empty ' getting 35 mpg at 70 mph , and about 40 mpg at 30 ~ 40 mph ? Dont get it , new air filter , plugs . And throttle balance all recently done ?
     
  2. Cyborgbot

    Cyborgbot Guest

    #2 Cyborgbot, Jun 11, 2019
    I average about 60 mpg on Tigger - but then I don’t cane the bike like a loon...

    When out with The Harley Boys it’s nearer 67 mpg...

    There definitely something odd with ur Tiger if that is all ur getting...
     
  3. Chris Ryder

    Chris Ryder Member

    May 10, 2019
    19
    8
    Blackpool
    #3 Chris Ryder, Jun 11, 2019
    Yeah , something very wrong !
     
  4. Cyborgbot

    Cyborgbot Guest

    #4 Cyborgbot, Jun 11, 2019
    Just to make sure its not some sensor problem, why not try manually calculating the mpg? Fill the tank, go for a blast about for 100 miles then refill and workout the consumption...

    Have you had ur Tiger from new? If not maybe someone tinkered with the ECU map?
     
  5. Chris Ryder

    Chris Ryder Member

    May 10, 2019
    19
    8
    Blackpool
    #5 Chris Ryder, Jun 11, 2019
    Done that . Reserve light goes on at 140 miles with 2 bars . Used to get 180 + before light & 2 bars . Not been messed with before problems arose !
     
  6. Chris Ryder

    Chris Ryder Member

    May 10, 2019
    19
    8
    Blackpool
    #6 Chris Ryder, Jun 11, 2019
    ,starter motor brushes and brush holder and an insulator thingy . All worn causing starting problems .
     
  7. Chris Ryder

    Chris Ryder Member

    May 10, 2019
    19
    8
    Blackpool
    #7 Chris Ryder, Jun 11, 2019
    20190607_173530.jpg 20190607_173535.jpg
     
  8. Cyborgbot

    Cyborgbot Guest

    #8 Cyborgbot, Jun 11, 2019
    If there are electric issues maybe there’s a weak spark and poor combustion?

    Is the performance of the bike a bit depressed?
     
  9. Tricky-Dicky

    Tricky-Dicky Crème de la Crème

    Dec 12, 2016
    2,441
    1,000
    Norfolk UK
    #9 Tricky-Dicky, Jun 12, 2019
    Presuming its liquid cooled ECU engine and the drop in consumption is relatively sudden i would check the coolant temp sensor for the ECU as failure will result in permanent rich mixture and bad consumption...however that is quite a drop.
     
    • Agree Agree x 1
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