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Author Topic: GTR 2012 Delphi - Fuel Pump Problem  (Read 428 times)

BrRider

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GTR 2012 Delphi - Fuel Pump Problem
« on: March 16, 2017, 11:31:04 PM »

Hello.

This is my problem:

https://youtu.be/mjO7r5mWDXU

Before engine start Fuel pump running continuously.

Any Idea??
« Last Edit: March 17, 2017, 02:11:54 AM by BrRider »
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Hylife

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Re: GTR 2012 Delphi - Fuel Pump Problem
« Reply #1 on: March 22, 2017, 08:23:16 AM »

You are out of fuel or the fuel pump or lines are blocked and the lines are not pressurised.
Remove tank, take outside away from any building and use all safety precautions when working with fuel.
Remove the fuel pump from the bottom of the tank. The pump just uses 12V DC. Use hookup leads and hoses and test pump.

http://www.hyosung.hu/download/pdf/data/service-manual/GV250-GT250-EFI-service-manual.pdf
See page 45 onwards.
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BrRider

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Re: GTR 2012 Delphi - Fuel Pump Problem
« Reply #2 on: March 23, 2017, 01:59:01 AM »

Hi, thank for you reply. The bike runs normal after motor starts man. This is kill the probality: Leak Fuel and pump line blocked right? ::)
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umop-ǝpisdn

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Re: GTR 2012 Delphi - Fuel Pump Problem
« Reply #3 on: March 23, 2017, 04:01:16 AM »

Pressure sensor may have shit itself, else a leak is indeed possible.

Just because the bike its running, it doesn't mean that it's not about to shit itself.
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BrRider

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Re: GTR 2012 Delphi - Fuel Pump Problem
« Reply #4 on: March 23, 2017, 07:00:48 PM »

Is the pressure sensor inside the fuel pump?
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umop-ǝpisdn

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Re: GTR 2012 Delphi - Fuel Pump Problem
« Reply #5 on: March 24, 2017, 02:55:56 AM »

There definitely is no external one, so if pressure is in fact regulated, then it would have to be done internally.
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umop-ǝpisdn

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Re: GTR 2012 Delphi - Fuel Pump Problem
« Reply #6 on: March 24, 2017, 02:56:59 AM »

Pure supposition by the way, I do not know for sure if it is or not.
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Tomcat2

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Re: GTR 2012 Delphi - Fuel Pump Problem
« Reply #7 on: March 24, 2017, 03:42:27 PM »

Pressure regulator is a valve on the fuel pump.  If pressure in the line is excessive, the pressure vents back to the fuel tank and fuel is returned to the tank.
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