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GPZ1100 A2 fuel pump

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rattly
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Posts: 9
Joined: 3rd Feb 2018
Location: Cotswolds

GPZ1100 A2 fuel pump

#1 PostAuthor: rattly » Sat May 13, 2023 3:19 pm

Hi,
Just got my first injected Z ( only ever had earlier ones before),
Always started on the button but today fired for a few seconds the nothing!
Plenty of fuel in her, give the air box a spray of fuel and it fires, all fuses are ok but can`t hear the fuel pump pressure up when i switch on, but not sure it`s supposed to?
Can anyone tell me which fuse is the pump please, and should i hear it pressure up, there is fuel at the pump.
Relays etc click when i turn ignition on..
Thx in advance

Philippe
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Posts: 2052
Joined: 26th Oct 2017
Location: België

Re: GPZ1100 A2 fuel pump

#2 PostAuthor: Philippe » Sat May 13, 2023 4:22 pm

Hi rattly
according to my interpretation it's the 30 Amp fuse, the one most right.
I hope this can help you.
GrtZ
Philippe
the differences between a little boy and an adult man is the price and size of their toys!

Philippe
Hardcore
Hardcore
Posts: 2052
Joined: 26th Oct 2017
Location: België

Re: GPZ1100 A2 fuel pump

#3 PostAuthor: Philippe » Sun May 14, 2023 8:00 am

Hi rattly

I think that the problem is somewhere else.
When there's enough pressure in the circuit, the pump doesn't start so perhaps the pressure relief valve is stuck or the device just before the relief valve that makes sure there's enough pressure broke down.
Have you checked if you have ignition? Get a spray to clean electric contacts and use it on all the connections.
Do you have a shop manual? If you don't have one, buy or borrow one.
All the steps you have to take to find a problem are clearly described there.
Good luck
GrtZ
Philippe
the differences between a little boy and an adult man is the price and size of their toys!


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