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Author Topic: fuel gauge stopped  (Read 318 times)
Solo
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« on: March 06, 2019, 00:21:03 »

Hi

This topic refers to the X9 125, non Evolution.

The fuel gauge stopped working today, did dash fancy dial reset, fuel needle went up and back down as it should, but wont give a reading, i have taken the Fuel sender unit out the tank and fitted one i know is working and fitted to the X9 125 Tank, made no difference, still no reading out put. swapped the Digi-dash round for my back up incase but no change.

Can someone suggest anything to check ?
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(5X) Piaggio X9 125 (1x) Piaggio X8 125 (1X) Aprilia Atlantic 125 (1x) Gilera Runner (5x) Pioneer Nevada 125 (1X) Shineray 125 (1X) siamoto 125 (1x) Piaggio Zip **Biking since 2005**

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Dave Milnes
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« Reply #1 on: March 06, 2019, 07:22:57 »

The connector to the top of the sender? CHeck for corroded wiring.
You have eliminated everything but the wiring.
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2004 X9 500 Evo in YELLOW - 2018 Honda Forza NSS300
Anderton 2004, Pen-y-cae 2005, Matlock 2006, Hay on Wye 2007, Minehead 2008, St Florence 2010, Newent 2011, North Kyme 2012, Betsw-y-coed 2013, Hardraw 2014, Parkend 2015, Whitby 2016, Mundesley 2017, Derby 2018...Telford?
Solo
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« Reply #2 on: March 06, 2019, 15:34:55 »

Checked and cleaned..... Still nothing
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(5X) Piaggio X9 125 (1x) Piaggio X8 125 (1X) Aprilia Atlantic 125 (1x) Gilera Runner (5x) Pioneer Nevada 125 (1X) Shineray 125 (1X) siamoto 125 (1x) Piaggio Zip **Biking since 2005**

FaceBook: https://www.facebook.com/SOLO.Biker.Leeds
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Dave Milnes
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« Reply #3 on: March 06, 2019, 15:52:44 »

If the dash reset works the analogue dash is OK and the connection and output from the digidash is OK. Could be a poor connection into the digidash.
Is the low fuel warning lit or doesn't the 125 have one? I think the fuel gauge works by having a ground to the end of the float winding and a sweeper from the float is connected to the gauge. The other side of the gauge is a switched live feed. The low fuel warning is fed from a second ground output from the float sweeper when it gets really low. If the low fuel warning isn't working either check that the float sender is getting a good ground.
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2004 X9 500 Evo in YELLOW - 2018 Honda Forza NSS300
Anderton 2004, Pen-y-cae 2005, Matlock 2006, Hay on Wye 2007, Minehead 2008, St Florence 2010, Newent 2011, North Kyme 2012, Betsw-y-coed 2013, Hardraw 2014, Parkend 2015, Whitby 2016, Mundesley 2017, Derby 2018...Telford?
Solo
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« Reply #4 on: March 06, 2019, 23:41:53 »

Low fuel warning is on, its got a full tank in now, still not playing game. conveniently just noticed the temperature gauge dont work, speed and rev counter work fine
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(5X) Piaggio X9 125 (1x) Piaggio X8 125 (1X) Aprilia Atlantic 125 (1x) Gilera Runner (5x) Pioneer Nevada 125 (1X) Shineray 125 (1X) siamoto 125 (1x) Piaggio Zip **Biking since 2005**

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Mike H
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« Reply #5 on: March 07, 2019, 16:00:14 »

Just guessing but suspect both are powered from the same supply.


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Solo
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« Reply #6 on: March 07, 2019, 22:38:20 »

Assuming that. But..... Iv checked everything.
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(5X) Piaggio X9 125 (1x) Piaggio X8 125 (1X) Aprilia Atlantic 125 (1x) Gilera Runner (5x) Pioneer Nevada 125 (1X) Shineray 125 (1X) siamoto 125 (1x) Piaggio Zip **Biking since 2005**

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Dave Milnes
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« Reply #7 on: March 08, 2019, 10:45:37 »

They both sweep on a reset so the gauges do work so must have power and ground. Sounds like the inputs from both sensors are not passing through the digidash.
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2004 X9 500 Evo in YELLOW - 2018 Honda Forza NSS300
Anderton 2004, Pen-y-cae 2005, Matlock 2006, Hay on Wye 2007, Minehead 2008, St Florence 2010, Newent 2011, North Kyme 2012, Betsw-y-coed 2013, Hardraw 2014, Parkend 2015, Whitby 2016, Mundesley 2017, Derby 2018...Telford?
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« Reply #8 on: March 08, 2019, 10:53:46 »

The middle plug on the digidash with 16 pins
The last 2 pins 23 and 24 are the inputs from the coolant and fuel sensors.
Pins are counted left to right top row then left to right bottom row starting at the 8 pin output to analogue connector so they are pins 1 to 8 then the middle 16 pin plug is pin 9 to 24.
Check for corrosion in the plug on the bottom RH 2 wires or broken pins.
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2004 X9 500 Evo in YELLOW - 2018 Honda Forza NSS300
Anderton 2004, Pen-y-cae 2005, Matlock 2006, Hay on Wye 2007, Minehead 2008, St Florence 2010, Newent 2011, North Kyme 2012, Betsw-y-coed 2013, Hardraw 2014, Parkend 2015, Whitby 2016, Mundesley 2017, Derby 2018...Telford?
Mike H
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« Reply #9 on: March 08, 2019, 17:41:01 »

Sorry I meant the supply to the sensors, fuel and temp, not the gauges. 


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Peter T
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« Reply #10 on: March 08, 2019, 23:29:33 »

I have the same problem. So watching with interest.
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2002 X9 250SL (Ernie) 2004 X9 250 Evo (Eric) GSXF600 Pulse Lightspeed 125 strewn about the garage in bits stinking the place out.
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« Reply #11 on: March 10, 2019, 01:44:12 »

 supple to the sender is fine and to the dash, very confusing, i given up parked it in the garage and got the 250SL out for a few miles blast to york and back via dales roads, a blast on the 250 is so nice after been on the X9125 it bliss, my 250SL is quit and cant hear the engine running and dales rides was nice and peaceful unlike a screaming 125.

I really need to get hold on a 500 X9 to complete my collection.
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(5X) Piaggio X9 125 (1x) Piaggio X8 125 (1X) Aprilia Atlantic 125 (1x) Gilera Runner (5x) Pioneer Nevada 125 (1X) Shineray 125 (1X) siamoto 125 (1x) Piaggio Zip **Biking since 2005**

FaceBook: https://www.facebook.com/SOLO.Biker.Leeds
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Gav
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« Reply #12 on: March 12, 2019, 01:58:52 »

So the one in Basildon fell through???

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Scootypuff Snr
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« Reply #13 on: March 12, 2019, 10:20:58 »

So the one in Basildon fell through???



No just a cowboy seller. I watched it at £3400 then less than 2 days to go price went up to £3995.

I think IF I get one it'll be PCP as experience of MP3 builds if it's a shed & I'm paying monthly I can claim warranty and if it's a real dog just hand it back after 3 years.

Peugeot dealers are scarce as well. Lots listed round here but like Kymco nobody stocks them in even Gavin Hockley has just dirt bikes on the show floor now and no display Suzuki road models (he was allowed to sell up to 400cc)

Ferry Motors Harwich shows as a dealer (had a nice vintage vespa outside last time)
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Solo
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« Reply #14 on: March 13, 2019, 01:26:25 »

Going to give it another go, it's up for sale now online. Bt will see if can solve misstry before sale
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(5X) Piaggio X9 125 (1x) Piaggio X8 125 (1X) Aprilia Atlantic 125 (1x) Gilera Runner (5x) Pioneer Nevada 125 (1X) Shineray 125 (1X) siamoto 125 (1x) Piaggio Zip **Biking since 2005**

FaceBook: https://www.facebook.com/SOLO.Biker.Leeds
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Mike H
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« Reply #15 on: March 13, 2019, 10:35:11 »

supple to the sender is fine and to the dash, very confusing,

Is the temp sensor also still not working?

Next step I ould think then is see if can get an ouput from the senders. If so, then problem is in the connections between them and the dash.

I'm not sure how the senders work, I assume it's a Voltage output. If so, then might also be possible to feed a Voltage to the gauges' inputs, to tst them, say from a PP3 battery.


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Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.
Dave Milnes
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« Reply #16 on: March 13, 2019, 11:17:38 »

On a 125 I think it's quite a simple system. The sender is a variable resistance and it is grounded on one side, the other feeds to the digidash which interprets the feed into a digital signal to drive the gauges. A positive feed is supplied to the dashes and probably does all gauges.
The fact that the test sweep works seems to suggest the output from the digidash is good as is all the required positive feeds required to move the gauges. What is lacking is the variable resistance input from the sensors, or the digidash has developed a fault and is not processing the signals.
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2004 X9 500 Evo in YELLOW - 2018 Honda Forza NSS300
Anderton 2004, Pen-y-cae 2005, Matlock 2006, Hay on Wye 2007, Minehead 2008, St Florence 2010, Newent 2011, North Kyme 2012, Betsw-y-coed 2013, Hardraw 2014, Parkend 2015, Whitby 2016, Mundesley 2017, Derby 2018...Telford?
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« Reply #17 on: March 13, 2019, 11:40:13 »

Of course there may be a common earth in the loom that has broken off on the frame somewhere.
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2004 X9 500 Evo in YELLOW - 2018 Honda Forza NSS300
Anderton 2004, Pen-y-cae 2005, Matlock 2006, Hay on Wye 2007, Minehead 2008, St Florence 2010, Newent 2011, North Kyme 2012, Betsw-y-coed 2013, Hardraw 2014, Parkend 2015, Whitby 2016, Mundesley 2017, Derby 2018...Telford?
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