Triumphrat

xactoman · 05-06-2007, 07:19 PM

went for a ride today (2000 daytona) and the fuel light came on. Pulled over and filled it up and the light did not go off. Hmmmm, what gives? Are the fuel sensors in the tank known to give out? Pulled the tank and disconnected the sensor and the light went off, plugged it in and it came back on. Continuity test on the sensor plug shows a closed circuit.

Does anyone know how these sensors work? Can they jam or are the totally electronic? Looking for some options instead of forking over $130 for a new sensor.

fivehundo · 05-06-2007, 09:59 PM

It's a stabilized float in a tube. Try rocking the bike side to side. That will un-jam it if it's just jammed. If not, get a new one, I guess. I've never heard of them failing...

I have an extra if the price is too expensive...

xactoman · 05-06-2007, 10:34 PM

Do you know if newer and older daytonas use similar designed sensors? From what I can tell from online micro fiche, is that the new daytonas 2002+ use a long tube with a float unit inside. The 99-01 unit (like mine) use a much smaller (much different) unit. doesn't show it being a tube with a float. Not sure what it is. Both are fairly pricey. 99-01 is about $130, 02+ is abou $100. Which unit do you have?

thanks for the help.

fivehundo · 05-06-2007, 10:39 PM

I have the 02 on model....

Yeah, I'm not really sure what you've got then. Sorry about that...

triumphtimes · 05-06-2007, 10:57 PM

I have one that is not the tube type laying around. Bought it thinking it was what I needed for my 00 RS. I've been looking for the tube type for a couple years on ebay. My sensor went haywire a couple years ago and it drives me nuts.

xactoman · 05-06-2007, 11:04 PM

TT,

Just sent you an email.

thanks

fivehundo · 05-07-2007, 05:15 AM

Quote:

On 2007-05-06 20:57, triumphtimes wrote:
I have one that is not the tube type laying around. Bought it thinking it was what I needed for my 00 RS. I've been looking for the tube type for a couple years on ebay. My sensor went haywire a couple years ago and it drives me nuts.

I don't know if your tube type is the same as the one I have but i have one in a 2002 Daytona tank. PM me if you're interested. Unfortunately, I don't know if that's the same one as the Sprint has...

Anyone? :???:

trafficfixr · 05-07-2007, 10:55 AM

i had the same problem with my sprint, it was pretty common over in that forum. You need to replace the sender. Mine started when my battery was getting weak and it kept tripping my check engine light(MIL? light) check the sprint forum, there were many topics on this one.

xactoman · 05-10-2007, 10:22 PM

Here's the update.

Got a used fuel sender from "triumphtimes" (thanks for the help).

Plugged it in and the that unit seems to be damaged also. Light wouldn't come on when tank was empty.

Got out the ol' volmeter and did some comparisons to the units out of the tank.

My unit (keeps the light on) has no resistance and full continuity whether in gas or not
Used unit (light doesn't come on) has 4k resistance and no continuity whether in gas or not.

I decided to take my unit apart and see how it works. Appears to be some sort of tiny liquid switch (resistor?) that when submerged, opens the circuit and when in air closes the circuit. That is a guess of course. I know my unit is cooked in that the circuit is shorted closed. What I don't get, is how the used unit could be damaged to an open circuit (in a stock state with no fluid, it should be a closed circuit) The only thing I can surmise is that the liquid switch could dry out and not function if removed from fuel over a long period of time, but that would mean that when you hook it up, the light would be on, and it is not.

I am stumped as to how these really work and/or how they get damaged. The question is, should I keep buying used units in hopes that one will work, or are all used ones going to be junk from being out of fuel to long. The alternative is bite the bullet and drop $130 on a new one.

triumphtimes · 05-10-2007, 10:47 PM

If the part doesn't work don't send the money. I wasn't aware that you recieved it already and I didn't know that it didn't work. I'm not one to pass on problems to others so you can just send it back to me and we'll call it even on shipping. Sorry the part wasn't good.

TT