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Thread: Fuel warning light vs fuel capacity vs calculated fuel consumption

  1. #1
    Baby Twin
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    Fuel warning light vs fuel capacity vs calculated fuel consumption

    Hello Guys,

    Somethingís not right with the above parameters on ma bike.
    Manual says fuel tank capacity is 18.5L.
    My usual fuel consumption is between 6.5-7.5L.
    Worst case scenario range should be 246 km.

    However I usually get the warning light at 150-170km and people up here said theyíd run out of fuel @30 kmís after the warning light came on.

    Therefore, whenever the light comes on I go and find a gas station.
    Most fuel Iíve ever pumped was 13L though.

    So Iím quite confused. I hate going to gas stations, would like to go when really necessary, also donít want to run out of fuel just to test this out.

    Anyone else tried running it dry with similar fuel consumption data?
    Tell me please how many kmís You were able to run on 1 full tank on even roads.

    Thanks


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  2. #2
    Baby Twin Heppy's Avatar
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    I run empty 100 yards from the petrol station and coasted in. It to 15.9l to fill it up? Go figure

  3. #3
    Baby Twin
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    Quote Originally Posted by Heppy View Post
    I run empty 100 yards from the petrol station and coasted in. It to 15.9l to fill it up? Go figure
    My point exactly! Feel like the 18.5L tank capacity is bullshit ...


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  4. #4
    Baby Twin
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    We I'm out right now about 10pm UK time and ran out of fuel again! I must stop pushing the reserve light

    134 miles this time with 17.4 miles being on reserve

    Best I've done his 150 miles Inc reserve

    Worst is about 118 miles Inc reserve Road riding only not track

    I've literally just filled up 18.02lt of fuel. It completely died and I had to roll half a mile to the garage... Ffs

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  5. #5
    Baby Twin
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    Quote Originally Posted by Birky41 View Post
    We I'm out right now about 10pm UK time and ran out of fuel again! I must stop pushing the reserve light

    134 miles this time with 17.4 miles being on reserve

    Best I've done his 150 miles Inc reserve

    Worst is about 118 miles Inc reserve Road riding only not track

    I've literally just filled up 18.02lt of fuel. It completely died and I had to roll half a mile to the garage... Ffs

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    I also understand, that due to temperature differences You might not be able to pump the 18.5L fully into the tank, but 0.5L difference doesnít seem to be within the normal range.

    So OK, 18L total should mean 240kmís for me (150 miles) with 7.5L consumption.

    Many thanks



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  6. #6
    Evil Twin hs2300's Avatar
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    I guess the amount you pump in from empty is dependent on how you bike sits when you fill it up
    Birky 18.2 very close to the 18.5 spec so I guess it was upright possibly you were sat on it and it was brimmed as close to the filler neck as you dare?
    Heppy 15.9 possibly on side stand and filled to a conservative level.

    I am only guessing here and not criticising any one,
    Thanks from Heppy

  7. #7
    Baby Twin Heppy's Avatar
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    Forgot to say, mine was the 2012 model. No way would you get 150 miles out of a tank no matter how you ride. The light would come on at around 100 miles and the worst I had on reserve was 10 miles, at best 25 both run to empty.
    Got the 2016 factory now and run out at 130 miles.

  8. #8
    Baby Twin Heppy's Avatar
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    Nope, it was to the brim, to the point it came out of the breather.
    Quote Originally Posted by hs2300 View Post
    I guess the amount you pump in from empty is dependent on how you bike sits when you fill it up
    Birky 18.2 very close to the 18.5 spec so I guess it was upright possibly you were sat on it and it was brimmed as close to the filler neck as you dare?
    Heppy 15.9 possibly on side stand and filled to a conservative level.

    I am only guessing here and not criticising any one,

  9. #9
    Baby Twin
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    Quote Originally Posted by Heppy View Post
    Forgot to say, mine was the 2012 model. No way would you get 150 miles out of a tank no matter how you ride. The light would come on at around 100 miles and the worst I had on reserve was 10 miles, at best 25 both run to empty.
    Got the 2016 factory now and run out at 130 miles.
    I have the Ď17 Factory, which should have the same dimensions as Birkyís in terms of fuel.

    HS has a point with the side stand, but Birky said 18.02 not 18.2. 0.5L is not close imho.

    Or do You think some gas nozzles are more sensitive than others? ( &#129315


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  10. #10
    Evil Twin hs2300's Avatar
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    Quote Originally Posted by Heppy View Post
    Forgot to say, mine was the 2012 model. No way would you get 150 miles out of a tank no matter how you ride. The light would come on at around 100 miles and the worst I had on reserve was 10 miles, at best 25 both run to empty.
    Got the 2016 factory now and run out at 130 miles.
    2012 had a smaller tank 17l Iirc. which makes some sense in what you said 15.9l to fill up.
    Thanks from Heppy

  11. #11
    Baby Twin
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    Have a Factory 2017.

    Largest fuel fill 17.8 L when it ran out several times till it wonít start anymore then pushed for 50m

    Max distance in a fill 237km (for sure it was a highway part)

    I concur that once the warning comes the best you have is around 30km more. Had two times the issue so I look for gas as soon as I get the warning.

    Second time was close to station and a downhill road so went down in N. Fired up once and went into the gas.

    That is what it comes with the ownership of this masterpiece


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  12. #12
    Baby Twin
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    Quote Originally Posted by ampj8 View Post
    Have a Factory 2017.

    Largest fuel fill 17.8 L when it ran out several times till it wonít start anymore then pushed for 50m

    Max distance in a fill 237km (for sure it was a highway part)

    I concur that once the warning comes the best you have is around 30km more. Had two times the issue so I look for gas as soon as I get the warning.

    Second time was close to station and a downhill road so went down in N. Fired up once and went into the gas.

    That is what it comes with the ownership of this masterpiece


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    ) so the 240km theortical is in fact possible. Thank god!! ) never dared to ride more than 200km


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  13. #13
    Baby Twin
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    Quote Originally Posted by csirkefoga View Post
    ) so the 240km theortical is in fact possible. Thank god!! ) never dared to ride more than 200km


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    Yes the best consumption ever was a 6.39 L/100km. Which mostly was on a highway with limit at 120 km/h max so average would be around 110-115 km/h and not much face winds to get there....

    The average consumption is mostly around 7ís low 8ís not much city riding, sporty hills, 1000m to 2000m mountains winding roads.


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  14. #14
    Superbike Twin peerieivan's Avatar
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    70 miles till the fuel light comes on sometimes usualy between 80-90 miles, aint gone further than a very gentle 12 miles on the fuel light!!! Too many hills here to push it up to take a chance

  15. #15
    Baby Twin
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    Quote Originally Posted by peerieivan View Post
    70 miles till the fuel light comes on sometimes usualy between 80-90 miles, aint gone further than a very gentle 12 miles on the fuel light!!! Too many hills here to push it up to take a chance
    Wow man!! I think Youíre not scared! that mileage certainly implies spirited riding


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  16. #16
    Superbike Twin peerieivan's Avatar
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    Haha, yeah the roads up here are quite special, its like one big track if they are clear, usualy only go out for a quick tanks worth then park up for a little while, dont want to get noticed too much, espaecialy with the uprise in dash cams

  17. #17
    Evil Twin hs2300's Avatar
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    ok so I run out of fuel today managed to coast the 25 yards to the fuel station, and the numbers are

    147 miles, full tank to run out
    23.6 on reserve with a gentle right hand.
    17.97l to re fill (brimmed with an upright bike)
    2016 TV4F.

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