Question about 2009 Gilera Runner ST 125

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2009 Gilera Runner VX 180 not getting fuel

Gilera runner 180vx has a petrol issue. Ok so bought ordinarily as a 125vx with a problem of it getting no fuel. I changed pump, fuel tap & all hoses & fitted 180vx engine. The issue is it runs bit cuts out due to being starved of fuel, the white petrol tank only has a tiny bit of fuel in it all the time the tank will not fill up. I have tried riding it with fuel cap off to get rid of airlock but no luck. I am out of ideas, can anyone help? @

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  • Gilera Master
  • 47,760 Answers

Hi, Ashleigh, you need to locate the fuel flow origin first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Vacuum line to fuel valve clogged, cracked, pinched, bent, broken, or missing*
5. Faulty vacuum line switch/relay
6. Petcock clogged or diaphragm cracked, cut or torn*
6. Fuel line from the fuel valve/petcock to the carburetor clogged, cracked, pinched, bent, broken, or missing.
7. Vacuum lines to the mechanical fuel pump clogged, cracked, pinched, bent, broken or missing.
8. Faulty electric fuel pump and or wiring.
9. Fuel line from the fuel pump to the carburetor clogged, cracked, pinched, bent, broken, or missing.
10. Carburetor inlet fitting clogged.
11. Carburetor float and or needle and seat stuck.
12. Carburetor overflow line clogged, pinched, or bent.
13. Vacuum line from carburetor deacceleration valve not zipped tied.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the links below. Good luck and have a nice day.
https://www.scootershack.co.uk/threads/gilera-runner-wont-run.15169
https://www.pitbikeclub.co.uk/showthread.php?t=41404
http://scootergrisen.dk/scooterhjemmeside/download/haynes_gilera_scooters_service_and_repair_manual_small.pdf
https://www.ajsutton.co.uk/spares/chooseModel.asp?make=gilera&uID=0
Gilera NEXUS 300 Owner Manual

Posted on May 09, 2018

  • 2 more comments 
  • Ashleigh May 11, 2018

    Thanks, its a 2004 btw i dunno why it came 2009. I will strip down bike again tomorrow & run over everything. I know it will be something silly it always is

  • Gregg Mahin
    Gregg Mahin May 11, 2018

    Good Luck

  • Ashleigh May 13, 2018

    Ok so good news,seems to running ok, currentley running with fuel cap off as theres abit of air in the fuel lines which is clearing slowly. I took off carb,inlet mainifold gave a good clean with carb cleaner, changed 2 vacuum pipes which i didnt change before put it together, put a new spark plug started her up n shes running sweet. I will go on a short trip tomorrow to see if the problem comes back.

  • Gregg Mahin
    Gregg Mahin May 13, 2018

    again, good luck

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6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: expert van 2.0 hdi engine runs lovely until you

Hi You need to get the ecu checked for fault codes if there are none it is possibly low fuel pressure you should allso check this have you changed the fuel filter or opened any fuel lines this could introduce air
which will lower fuel pressure.Good luck Chris.

Posted on Mar 24, 2009

  • 12 Answers

SOURCE: 2008 Derbi Cross City 125 running problems

if you turn a motorbike tank into reserve..
the patrol wont go to a little filter.. soo.. thats the splutter and so..

Posted on Jul 11, 2009

  • 4 Answers

SOURCE: Blowing smoke out tailpipes,white to light grey,

your piston ring could be goin bad

Posted on Jul 31, 2009

  • 19 Answers

SOURCE: engine starving for fuel, fuel filter very low, almost empty

your fuel pump is diaghram actuated by pulses from crankcase pressure, if you look there is a small tube that runs from pump to valve cover, pull fuel line off carb and have some one crank it over to see if it's pumping. could be pump or blockage between tank and pump, if fuel flow seems good to carb, i would pull bowl off and check for dirt and also make sure anti run on valve, the thinghy that holds the bowl on to carb is opening properly, it should open and close when you turn key from off to run, beyond that it could be you have some water in your gas.

Posted on Mar 14, 2010

rd2p
  • 1 Answer

SOURCE: gilera runner stolen, changed barrel/immobiliser, no spark

There's a procedure to recode new keys, so the immobilizer let's you use the new key, if (and only if) you have the master key (red). Look at this PDF:
http://www.wotmeworry.org.uk/manuals/Gilera%20Nexus/Gilera%20Nexus%20500%20Mk1%20Workshop%20Manual.pdf

Look for "Setting the Circuit" in the PDF.
Good luck!

Posted on Aug 21, 2012

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