[AzJosh]

Well got hands on new fuel pump for next to nothing. Quick install and same thing. Starts quick then dies immediately. 44 psi both pumps. If I play it like a carb it will stay running. Then every start after it idle perfect 1300rpms.
Wouldn't low compression make it run sluggish and low power? It has neither. ?

 

[AzJosh]

Errrrr Josh, 44 psi is .......way low for a 1000... maybe better look at the filter or the pressure regulator.

At least you have found the problem.

That sucks that both pumps are the same + or - 2psi. Gonna get another gauge and try again. I just can't see both pumps putting out the same.

 

[AzJosh]

Take a look at the regulator on the pump assembly. It should say 400 kpa on it. You may have a 300 kpa regulator in both pumps.

I will look tomorrow, and let you know.

 

[AzJosh]

Ok got a gauge that i tested with known pressure. Pump immediately goes to 59psi.
Crazy thing, i started it cold and idled perfect at 3500 then stopped to 2500 and held there with no movement on the pedal. Just like it should do.
I'm wondering if trailering it would cause air in line. But that's not gonna stop the pump from pushing through. Just thinking out loud.
Gonna let it set and try tomorrow and see what it does.

 

[AzJosh]

The correct idle for an XP1000 is 1200 +/- 100 rpm. If it's idling at 2500 something is wrong.

Sorry guys fat fingers and working nights, gotta check my posts. Starts at 1300rpms. After about 30 seconds settles down to 1200 steady.
So yeah i would say it starts correctly "as of now". So like i said i will let it set overnight and try in the am.
Appreciate the responses, and sorry for the confusion.

 

[AzJosh]

I gotcha, will get a tester tomorrow. What's a good number?
Also i bought it used and not much info. Where can I get more usable info at? Like a Chilton's manual?