Who wants a fuel sensor that works reliably?
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View Poll Results: Would You Buy A Fuel Level Sensor For ~GBP100 That Worked Reliably ?

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  • Yes, for my Tornado

    4 18.18%
  • Yes, for my TNT

    6 27.27%
  • Yes, for my TreK

    5 22.73%
  • No, I don't care what the gauge tells me, I just want to ride.

    8 36.36%
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Thread: Who wants a fuel sensor that works reliably?

  1. #1
    Senior Member Engenia's Avatar
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    Errol Kowald
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    Who wants a fuel sensor that works reliably?

    I've been thinking about creating a fuel level sensor that works reliably for almost as long as I've owned Nell. There's a few ways to do it, but all would involve a changeover unit, where the existing pump/sensor unit is replaced with one re-sensored and re-wired to suit. The new sensor would be run by a microprocessor, hence the need for internal re-wiring, and all of the electronics would need to be sealed against attack by petrol.
    The existing float system would be replaced by a full length circuit board, and there may need to be different length boards for the three variants. (TBA)
    Here's how it would read:-
    Gauge segment
    Tornado
    (18 litres)
    TNT
    (16 litres)
    TreK
    (22litres)
    8 16-18 14.2-16 19.6-22
    7 14-16 12.4-14.2 17.1-19.6
    6 12-14 10.7-12.4 14.7-17.1
    5 10-12 8.9-10.7 12.2-14.7
    4 8-10 7.1-8.9 9.8-12.2
    3 6-8 5.3-7.1 7.3-9.8
    2 4-6 3.6-5.3 4.9-7.3
    1 + fuel light 2-4 1.8-3.6 2.4-4.9
    0 + fuel light 0-2 0-1.8 0-2.4
    It should be possible to make the fuel light flash and the segments alternate from all on to all off when the level gets below 1/9th.
    The OEM cost is ~ GBP70, but this system is expected to be more expensive at ~ GBP100
    Last edited by Engenia; 01-30-2016 at 09:00 PM.
    hooroo, Errol www.engenia.com.au [139,200 km - and counting .....]

  2. #2
    Senior Member Distracted Rider's Avatar
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    Post ...

    Sounds interesting. Keep me posted.

    Thanks

  3. #3
    Senior Member Hussar's Avatar
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    Tim Wynn
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    Leominster, Herefordshire
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    Sounds like a brilliant idea. I'm fed up with having a gauge that reads 6/8 full for 100 miles and then plummets to empty in the next 60. How easy (or difficult) would this be to fit and wire in?

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  5. #4
    Senior Member Engenia's Avatar
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    Errol Kowald
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    Quote Originally Posted by Hussar View Post
    Sounds like a brilliant idea. I'm fed up with having a gauge that reads 6/8 full for 100 miles and then plummets to empty in the next 60. How easy (or difficult) would this be to fit and wire in?
    Easy for you, hard for me.
    All you have to do is remove the pump unit from the tank and install the replacement. The connections external to the tank are unchanged.
    For me, I need to know what the fuel volume vs height relationship is for each tank. Easy for my Tornado, I can do that myself, but I don't have a TNT or a TreK, so I would need someone else to do this for me.
    Then it's a case of measuring the fuel height and presenting a corresponding "resistance" to the gauge.
    That's about the bones of it.
    hooroo, Errol www.engenia.com.au [139,200 km - and counting .....]

  6. #5
    Senior Member Engenia's Avatar
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    Errol Kowald
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    I'm under whelmed
    It seems that either very few Benelli owners care about how much fuel is in their tank, or maybe there's only a very few with crook sensors?
    (I'll do it anyway, but it'll be on the back burner.)
    hooroo, Errol www.engenia.com.au [139,200 km - and counting .....]

  7. #6
    Senior Member TOTDY's Avatar
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    Dave Rolstone
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    Just thinking most of the bikes I’ve owned had no fuel gages so looking in the tank is still a habit .
    At the moment my gage is working, I compared it to Wyn’s when we did a run together last year. Both gages gave slightly different readings for the same milage, mine giving lower readings than Wyn’s but not enough to worry about.
    So not interested it’s just a convenience while riding to save doing mental arithmetic .

    Dave
    “Come to the edge,’ he said. ‘We are afraid,’ they said. ‘Come to the edge, he said,’ and slowly, reluctantly, they came. He pushed them and they flew.”
    -- Guillaume Apollinaire

  8. #7
    Senior Member MadMan's Avatar
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    When I finally find the right Tornado this is the sort of mod I would probably want to do.

    It would drive me crazy on my other bikes as I use them for touring and commuting, but the Tornado will be a bit of a toy and only burn a few tanks of fuel a year.

  9. #8
    Senior Member Engenia's Avatar
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    Errol Kowald
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    Quote Originally Posted by MadMan View Post
    It would drive me crazy on my other bikes as I use them for touring ...
    Exactly the reason I want to be able to trust my gauge. I want to know that when the last segment drops off, I've got 2 litres left ( > 1.5 & < 2.5 ), which should take me 1/8 of what I've already done. If I've done 280 km, I've got another 35 up my sleeve. Then I know if I'll make it to the intended fuel stop. That can be the difference between a 4 tank day and a 6 tank day.
    When I'm on a mission, I don't want to spend it topping up.

    Ideally, and eventually, I'll make an injector time counter. That'll give me instantaneous economy as well as average, and an estimate of the total distance on the current tank.
    hooroo, Errol www.engenia.com.au [139,200 km - and counting .....]

  10. #9
    Junior Member
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    Jonathan Hart
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    I think an accurate gauge would be very useful, just not for £100.
    ive got into the habit of checking the tank is full before I go anywhere , then around 100miles I start thinking about filling up again. As others have commented, mine shows apparently full until around 90 miles then drops off quickly. I know I can probably get around 120 miles safely. At my age stopping for a pit stop regularly is driven by other needs anyway!fd
    ron d likes this.

  11. #10
    Junior Member
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    Hey buddy...I own a benelli tnt 300 and recently i have observed that the tempreture does not show up on the cluster..howver the fan works when it heats...any one could help???

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