Question about 2012 Piaggio Fly 150

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Bike cuts out on half a fuel of tank

I've had the scooter for about a year (brand new) and it has been running fine until the last month or so. I was riding along and it just cut out as if there was no fuel left (even though there was still a liter in the tank). It was start but quickly die and then not start at all. I assumed I was out of fuel to pushed it to a station. I filled it up and it started again fine. No problems for a week or so (I only ride it a few times a week). Then same problem - I was riding along and it conked. This time there was about 2 liters in the tank. I pushed it to a petrol station, filled it up again and it was fine. Used it for a few more days and it conked out again this morning with about 3 litres in the tank. I filled it up, it ran fine. But I'm sure it's going to conk out again on me soon. Any suggestions?

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  • Piaggio Expert
  • 391 Answers

Yes There is a vent in the fuel tank. It is either in the filler cap or a separate hose. Sounds like ti is plugged up.

Posted on Apr 13, 2014

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Posted on Jan 02, 2017

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SOURCE: Bike: Piagio X9 Evolution 500.

Something is wrong with the fuel supply. Since you have flow thru the return pipe it means that the problem is either in the pressure regulator or the injector .
To check them you will need to do 2 tests:
1 - to determine the location of the fault detach the fuel line from the injector, put it in a can and try to start the engine - if the fuel squirts with pressure then the regulator is good and you need to test the injector itself;
2 - connect the fuel line back to the injector, put a multimeter across the contacts and check the voltage when you try to start the engine - if it shows less than 6 volts you have an electrical problem (either a faulty wiring or a defective ECM); if it shows over 6 volts you have a clogged injector - the entire fuel system will have to be cleaned.

Posted on Sep 18, 2011

markrd125
  • 39 Answers

SOURCE: bike cuts out when taking off and engine management light comes on

fuel air is my first thoughts

  • NOTE: A rich problem gets worse as the engine heats up.

  • NOTE: A lean problem gets better as the engine heats up.

Posted on Oct 30, 2012

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