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2000 Ultra Classic fuel pressure?

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Old Yesterday | 01:05 PM
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Default 2000 Ultra Classic fuel pressure?

As stated in the title, does anyone here know the specification for fuel pressure on a MM injected 2000 FLHTCUI.... I have a pump in there, but its not specced for the bike. Its for a Ford truck, and I know the regulator on that breaks pressure down to 30PSI.... I dont know what the regulator is on the Harley, and I dont know what the output spec is on the pump. Bike is running with the pump slaved in, but before I button up the tank, I would like to know that its got enough pressure.... I have the proper pump on the way, but who knows when it will get here.....
 
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Old Yesterday | 01:08 PM
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55-60 PSI
 

Last edited by MURPHCC1; Yesterday at 01:10 PM.
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Old Yesterday | 04:31 PM
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Originally Posted by MURPHCC1
55-60 PSI


That is for the Delphi EFI system...

The MM EFI system is lower, I want to say 43psi (3 bar), but that would be relying on my old man memory..

There was thread about MM EFI pressure recently. I mistakenly said I believed it was the same as Delphi EFI. I was corrected by someone much smarter than myself... I believe he said it was a 3 bar system.
 

Last edited by hattitude; Yesterday at 04:40 PM.
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Old Yesterday | 04:37 PM
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Originally Posted by hattitude
That is for the Delphi EFI system...

I think the MM EFI system is lower, I want to say 40psi, but that would be a complete guess...
I think you're right, was thinking of the Delphi.

about 40-45PSI I think
 
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