regulator makes a squilling noise

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j2004jeepwrangler · Fri Apr 26, 2013 8:21 am

Like the title says. When I first turn the key switch on the regulator will squil/whine then it finally stops. Mu fuel flow slowly comes out into the tank. Now when I ride the quad it fills fine, except when you try to hole shot. It will bogg down. But if you don't get into is as hard its fine. Could my systoms of the bogg be cause of my regulator starting to fail? On a side note my vavuum line isn't hooked up to it. I really don't know what that does if anything.

werty · #2 Post by **werty** » Fri Apr 26, 2013 3:06 pm

QUOTE (j2004jeepwrangler @ Apr 26 2013, 01:21 AM) <{POST_SNAPBACK}>

Like the title says. When I first turn the key switch on the regulator will squil/whine then it finally stops. Mu fuel flow slowly comes out into the tank. Now when I ride the quad it fills fine, except when you try to hole shot. It will bogg down. But if you don't get into is as hard its fine. Could my systoms of the bogg be cause of my regulator starting to fail? On a side note my vavuum line isn't hooked up to it. I really don't know what that does if anything.

I don't even have the vacuum connected. Sounds like the regulator is dieing. When you holeshot you are dumping a ton
Fuel into the motor. If there is no pressure the motor will bog. Call Brad or Dave. They should have some in stock.

j2004jeepwrangler · Fri Apr 26, 2013 11:03 pm

QUOTE (werty @ Apr 26 2013, 04:06 PM) <{POST_SNAPBACK}>

I don't even have the vacuum connected. Sounds like the regulator is dieing. When you holeshot you are dumping a ton
Fuel into the motor. If there is no pressure the motor will bog. Call Brad or Dave. They should have some in stock. Ok I hope thats my problem. I leaned out the bike and its not quite as bad. But I don't wanna risk going leaner.

Rally2 · #4 Post by **Rally2** » Fri Apr 26, 2013 11:10 pm

I've replaced my quick connects with 'boomer connects and separate isolation valves. You're describing the exact sound my fuel pump makes when I accidentally turn on ignition without opening the suction line isolation valve. The pump starves for fuel and immediately cavitates/squeals and sounds generally very unhappy. I burned out a pump that way so be careful if it's a restriction on the suction side. Just a thought but maybe your suction line is plugged or the quick connect o-ring has swelled shut?

j2004jeepwrangler · Sat Apr 27, 2013 12:27 am

I don't have the quick connects any more. I have a hose barbs on the tank. And fuel filter is new. Like 30 minutes new.

wistech · #6 Post by **wistech** » Sat Apr 27, 2013 2:48 am

Check the screen in the fuel tank suction hose for plugging. The regulator has a snap ring on the bottom to remove and clean the screen if it has debris in it. If it does then the injectors might need new filters as well.

j2004jeepwrangler · Sat Apr 27, 2013 3:05 am

Ill check the gas tank screen. Alread checked the screen in the regulator it was clean. I tried another fuel filter, and it flowed a lot better back to normal but then acted clogged again.

j2004jeepwrangler · Sat Apr 27, 2013 6:40 am

I checked my fuel psi. And it was around 59 to 60.

kdeal · #9 Post by **kdeal** » Sat Apr 27, 2013 1:37 pm

That is too high. Should be 1 bar, which is about 42psi. I would change the regulator. Please make sure the noise is not coming from the fuel pump though.

wistech · #10 Post by **wistech** » Sat Apr 27, 2013 6:43 pm

When we were using adjustable regulators on the dyno 60psi was about the limit before the injectors wouldnt fire any more. You should be drowning the engine in fuel even at 50 psi.