Kerosene In The Gas Tank...

Discussion in 'Technical Help' started by RokitJon, Jun 18, 2019.

  1. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    Well, I just never seem to stop creating problems for myself..
    Accidentally put some kerosene in my tank..probably about a cup and a half before I realized it didn't smell right. Went ahead and filled the tank with regular gas thinking it would dilute it but the bike still ran rough and periodically I'd hear a snapping sound from the engine....

    I siphoned out the tank and put fresh gas in. Ran it long enough to burn out what was left in the fuel filter but still runs the same, with this snapping sound.

    I think the kerosene is heavier than gas and sat on the bottom of the tank, giving the combustion chamber a full gulp of kerosene and possibly fouling one of the plugs - what do you think?
     
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  2. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,246
    1,000
    Uk
    Well for one, you’re really brave to admit that in public! Is it carbs or efi
    If you’ve emptied the tank out fully put some cleaning additive, someone will recommend a good one, in gallon or less of fuel and run it like that for a while. Take your plugs out and look
     
  3. freck

    freck Elite Member

    May 4, 2017
    1,718
    750
    Preston, Lancs, UK
    Run SeaFoam through it. It should clean out all your fuel system.
    I doubt you’ll have done any damage, after all kerosene is an oil
     
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  4. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,358
    800
    Nr Biggar
    Think of kerosene, paraffin, heating oil etc., as half way between petrol (gas) and diesel (derv) It is much less volatile (about 140 degree F difference in flash points) so needs a wick to vapourise and burn......unless you pressurise it in a jet turbine.......It doesn’t atomise like petrol in a carb or injector.

    It will self clean but spit and knock a bit - maintain the dilution. Everything is happening in the combustion chamber but don’t make a habit of it! Major knocking and carbon build up would be an issue.
     
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  5. Havit

    Havit Admin
    Staff Member Subscriber

    Jul 17, 2015
    9,679
    1,000
    Kent
    if you wanted more heat out of your bike , Stick with heated grips :p.

    As already mentioned check the plugs, Its so easily done from containers of fuel . It shows the importance of marking cans with what fuel is in it .;)
     
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  6. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    Crispey, you have no idea the dumb shit I've done that I wouldn't admit to anyone - but this is Motorcycling (cue the angelic chorus) so I MUST confess my sins at this Holy altar!

    This is EFI.

    Bloody Hell - how I loath taking this bike apart AGAIN!!
    Meanwhile here in hot and humid Florida we're having wonderful, cool storm clouds moving thru - my favorite summer time to ride - and I'm missing it!
     
  7. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    Yes, and I thought the Speedy would have handled this Snake Bite elixir better than it did - temperamental little cunt!
     
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  8. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    I used to be a jet and helicopter mechanic so have a nose for Kerosene type fuels. I keep it around for cleaning parts and my turbine heater. If I hadn't have smelled the mistake when I did this would have been a bigger mess.

    I usually keep these separate and have the gas cans marked, but things got shuffled and the Kerosene ended up in the wrong place...
     
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  9. bob1

    bob1 Noble Member
    Subscriber

    Mar 12, 2018
    429
    313
    Somerset
    I can recommend silkolene pro fst had condensation in the fuel system on a fireblade ran like a pig. put a bottle of this through it ran perfect after.
     
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  10. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    I'm in the USA so Silkolene is not readily available. On their website the only dealer is in Texas, about 1000 miles away.
     
  11. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida

    I've got a supply of Seafoam on the shelf here but it seems these treatments aren't the right prescription for the problem...Seems it would need something hotter, more volatile, to burn this stuff up..but I don't know what it would be and don't want to damage the plastic tank...
     
  12. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    I've got a bottle of this Lucas product that sounds like it might do the trick. What do you think?

    100_9763.jpg
     
  13. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    OK, we'll see what happens.
    Just replaced the valve cover gasket so not thrilled about taking this apart again to check the plugs. I'll just put the body work on it, go for a ride and see how she does.
     
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  14. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,246
    1,000
    Uk
    best of British to you
     
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  15. capt

    capt Elite Member

    May 8, 2016
    3,051
    750
    western Australia
    Try a cup of metholated spirits or similar, give the bike/tank a good shake, it burns at lower temperatures and should mix the three fuels up into a Blend ?? I know it combines petroleum and water if you get water condensation or contamination in your tank....
     
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  16. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    Thanks for that!
     
  17. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    Capt I'll have a look at that -
     
  18. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    Just a quick update - fresh non-ethanol fuel, an ounce of Lucas and the bike is back to running like normal - what a relief!
     
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  19. RokitJon

    RokitJon Active Member

    Nov 11, 2018
    89
    28
    North Florida
    Same here. I've been using Seafoam but otherwise try to stay away from using potions, elixirs, miracle cures and snake oil to make things run better...although I must confess an affection for Marvel Mystery Oil which is excellent for removing oxidation from aluminum and cleaning up combustion chambers on some applications.
     
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  20. JollySailor

    JollySailor New Member

    Mar 5, 2019
    8
    3
    Falmouth
    I don't think the kerosene is the problem . Having done the same with diesel and carried out the same routine as you all was good . It ran a bit smokey for a few seconds and has been good since . Kerosene is a light oil so I think it shouldn't do any harm .
     
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