Twisted Questions

[sledhed88]

Hey guys just rebuilt my 1000, after about 6months of being torn apart. Got a few questions/problems. Rebuilt whole motor. chassis

Only getting 20 PSI on the guage for fuel pressure. Riding it sputters an wants to die.
Seems like it idles to hi as well now.
Nothing was changed since rebuild besides the reeds, i double stacked wit two whole sets. (before was one an a half sets.)

On the FPR, the nipple on the side. Does that connect to the lines that go to the BOV and into the carb boots??

Fuel Pressure Guage line plumbs in jujst after the regulator??

Any suggestions would be great

 

[mmsports]

first things first

fix fuel pressure it will not run with 20 lb

 

[sledhed88]

it will not run?? or it will not run Good?? guage is readin 20. an it runs, but wit just the above problems...

Its not a adj FRP wit the kit, so do u just gotta buy a new one??

 

[jensen]

twisted

If your using the bosch regulator the nipple on the side goes t'ed in to the main line running from the tank to the fuel rail. The top nipple(fpr) returns to the tank. A line from the airbox goes to the nipple(boost reference) on the adjusting side of the fpr. The original two lines that were used for the oil injection are combined to one and go to the BOV.

 

[mmsports]

It might Start

But that's it you should at least 36-38

 

[sledhed88]

So i should probably look at getting a new gauge then?? Because, i rode it down the feild here for about 5minutes. if u burped the throttle it was fine till u let off it wanted to cut out.

 

[harf69]

call shain and talk to him because i believe there is a mode on your fuel box on the m1000 that gives it fuel when you let off the throttle just a thought

 

[Im_Not_Hatchers]

Hey guys just rebuilt my 1000, after about 6months of being torn apart. Got a few questions/problems. Rebuilt whole motor. chassis

Only getting 20 PSI on the guage for fuel pressure. Riding it sputters an wants to die. you need 36ish-38ish when you pull the rope and at idle
Seems like it idles to hi as well now. this is what happens when you starve an engine of fuel, too much fuel will bog and die
Nothing was changed since rebuild besides the reeds, i double stacked wit two whole sets. (before was one an a half sets.)

On the FPR, the nipple on the side. Does that connect to the lines that go to the BOV and into the carb boots??
Hold the phone, connect the larger end to the fuel pump, connect the side large fitting to both a return line back to the fuel tank and the injector fuel rail, now connect the small clean super tube from the small fitting on the other end to your airbox. Understand all boost tubing is coming from the same void. do you have the install directions?

Fuel Pressure Guage line plumbs in jujst after the regulator?? No, the fuel pressure guage you will use to visually see the fuel pressure will need to be tapped anywhere inbetween the fuel pump exit of the fuel tank and the FPR

Any suggestions would be great

answers in red

 

[sledhed88]

So what are causes of low fuel pressure?? Faulty regulator? I have no idea. everything was good before tear down, now i effed it up some how. Gauge was almost brand new.

 

[promod631]

No fuel pressure

Replace fuel pump relay, make sure u get same one, probaly got wet. Changed one here this year same problem.... enjoy..

 

[Im_Not_Hatchers]

So what are causes of low fuel pressure?? Faulty regulator? I have no idea. everything was good before tear down, now i effed it up some how. Gauge was almost brand new.

is this a new turbo kit?

 

[kodiak-79]

had the same problem because i forgot to wire in the relay for the pump. needs the xtra juice to push the fuel yer after!!

 

[Snowstar]

Check fuel pump wiring and relay. Your fuel pressure gauge should referance from a T installed in the fuel line just after the fuel pump. Do you have the pressure and return lines confused? The 5/16 side port of the FPR T's to the fuel line just before the fuel rail, the 5/16 end port returns to the fuel tank and the 1/8 port on the end of the adjuster plumbs to the airbox for boost referance.

 

[sledhed88]

Im not sure my setup is the same as the new ones cause mine was shains prototype i believe. But anyways ill try the relay tomorrow.
As for lines i will also try that. On the tank i have two lines. One on top of the other. And on the fuel rail there is a nipple pointing towards the mag side ski, and one pointing back. All the lines were cut from original install so i dont think its messed up.
But from the top fuel line on the tank it goes into the FPR and then into the MAG side nipple on fuel rail. Off of the FPR nipple (small) it goes into the carb boots (where the oil injection lines were stock) and into the BOV.
Just after the FPR is the takeoff for fuel pressure, to the gauge.
Line from boost guage or controlller runs into airbox.
Bottom fuel line from tank runs straight into the back nipple of the fuel rail.

SO i will try switching relay an lines around on tank an hoipefully this helps.
THx guys, much appreciated

 

[jensen]

Setup

Sounds to me like one of the two nipples on the fuel rail needs to go to the fuel tank(fuel pump). The other nipple(on the fuel rail) needs to go to the side nipple(5/16") on the regulator. Then the nipple(5/16") on the end of the regulator needs to be where your return line needs to be plugged into. The small(1/8") nipple on the regulator should be ok plugged into where you have it, but mine goes directly to the air box.

 

[sledhed88]

found a relay in the garage, tried it out nothing. Switched fuel lines off the tank, got 0psi and higher idle. Gunna go buy a brand new relay an try it. And then switch lines off the fuel rail.

What else are ideas?
I did not take apart the lines when i disasembled. So i know they are setup right as to where the FPR is what housing connects to it.

 

[Snowstar]

Double check the relay wiring and ground. The high output fuel pumps will only make 20-30 psi on the stock fuel pump power circut. The relays job is to switch over to the high power circut (accessory plug) after the sled is started.

 

[sledhed88]

im goin through all the wiring. there was some scabby solder jobs ill re do but im really doubting this is the problem. im seeing all the grounds hooked up (4).
One on the left steering hoop. Two up front and one off the motor. ??? Tried brand new relay, same thing. connection looks good, wires were tight.

 

[sledhed88]

redid all the wiring. Same thing. Whats next...

 

[sledhed88]

On mine the main fuel line is straight into the rail and on the return the fpr is connected here. Pulled the fpr off an connected another guage in. Still 20 psi. So is this a faulty pump???