R3T Fuel level indicator not reading.


These bikes have bizarre electrical wiring issues. I thought I was stalled today with a no start.
Seem that the little switch on the clutch is pretty darn important. Mine is loose and sometimes the fuel indication works, sometimes it does not. Today after arriving at a hole in the wall diner in the middle of "podunkville", the bieatche would not start. Check engine light on. I fiddled with the ignition, switching key on and off. I was about to take the seat off to disconnect the battery for a ECU reset but fiddled with that ****ned clutch switch a bit and it started up!

If I am going to keep this motorcycle, this problem will have to be solved. Seems that the fuel flow and fuel remaining logic flows through that elcheapo clutch switch AS WELL as some kind of engine start logic. I am scared to take this thing out. No documentation in the manual about this switch or how it works.
 
It's the RC network driving the averaging circuit. Gas sloshes alot and the float moves up and down with the movement... the needle on the gauge is steady though. this circuit provides an averaging function thru a resistive/capacitive network that takes several cycles to charge once discharged. this can happen after ecu tunes as well.. Cheers.
 
What is a RC network? Oddly enough, the gauge was accurate for the first three or four tanks I ran. Would this switch have anything to do with the no start and CEL?
 
RC is a resistive / capacitive circuit; With each cycle of the alternating current, the capacitor charges thru the resister and, through this action, the circuit provides an average reading for the gas gauge. Again,this keeps the gauge needle from fluctuating as the float bobs around in the gas tank. Nothing to do with other circuits /starting etc. Cheers
 
Thanks.
 
I've noticed my 08 R3T showing 0 gas on the gauge. I've also had issues with the start function. My question is could / would these issues be caused by a weak battery?
 
I've noticed my 08 R3T showing 0 gas on the gauge. I've also had issues with the start function. My question is could / would these issues be caused by a weak battery?
I bought a battery topper and have been keeping it topped up.
The manual is very weak on describing how this switch works and depicting the function. It's cheaply made with a plastic stem inside and a thin metal ring (for the electrical connection I guess). I can't figure out what holds it on. Some have cut the wires and s
I've noticed my 08 R3T showing 0 gas on the gauge. I've also had issues with the start function. My question is could / would these issues be caused by a weak battery?

I bought a battery topper and have been keeping it topped up.
The manual is very weak on describing how this switch works and depicting the function. It's cheaply made with a plastic stem inside and a thin metal ring (for the electrical connection I guess). I can't figure out what holds it on. Some have cut the wires and soldiered them together (making an electrical circuit complete?). I have not tried that. I have contacted Triumph about it, no results yet.
 
Thanks for the response. I've kept the bike on a battery tender. I try to plug in when the cycle is parked. I noticed when the voltage is in the 12.4 dc volts, the fuel gauge takes time to respond. I accounted for the increase from the alt. to making the gauge respond. The ignition is the same. Increase the voltage, and the starter responds.
 
Perhaps these bikes just need a more powerful battery?
 
Nice heads up, thanks