I had this same problem. I fiddled around with everything in the
carberator and tried the pressure regulator. The pressure regulator
could not be turned down to a low enough pressure without starving the
carberator for fuel. I bought an electric fuel pump rated for the
correct low pressure and it has run like a dream for two years. I was
able to lower the float to keep off camber flooding to a minimum.
Another trick if your replace a one barrel with the Weber is to turn
the carb. 90 degrees which puts the bowl stick out toward the drivers
side. The thing will not flood out even when the wheels start coming
up (I don't like to talk about how I know that). I bought a Purolator
universal replacement pump at Advanced with the right pressure rating.

"c" <c@me.org> wrote in message news:<UehUb.31064$sd.8394@twister.rdc-kc.rr.com>...
> "Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
> news:40216b30_3@newspeer2.tds.net...
> > I got a problem, I put a weber carb on my 256 awhile back and have noticed
> > that it has been running rich. After many hours of adjusting and tweaking
> > the carb I called Weber and they said that I need to knock down my fuel
> > pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb
> needs
> > 2.5-3psi. All the parts stores that I have talked to say that there is
> > nothing I can use to drop the pressure. I would think that there has to be
> > some sort of regulator that will output a fixed or adjustable pressure
> that
> > I can put in the fuel line after the pump. If anyone knows of a part # or
> > manufacture that I can get something to fix this I would be forever in
> your
> > debt. Thanks
> >
> >
> > Scott
> > 90YJ
> >
>
> You need a regulator for your system. These are readily available from many
> places. Weber carbs "like" lower fuel pressure than most carbs (2-4 PSI).
> Here is some info on recommended pressure for the Weber carbs:
>
> <http://bimmer.roadfly.org/2002/messages/archive/msgsy2001w12/89239.html>
> http://www.racetep.com/webfuelspark.html#webfuel
>
>
> Here is a regulator you can use:
> http://store.summitracing.com/partde...HLY%2D12%2D804
>
>
> Chris

 

I had this same problem. I fiddled around with everything in the
carberator and tried the pressure regulator. The pressure regulator
could not be turned down to a low enough pressure without starving the
carberator for fuel. I bought an electric fuel pump rated for the
correct low pressure and it has run like a dream for two years. I was
able to lower the float to keep off camber flooding to a minimum.
Another trick if your replace a one barrel with the Weber is to turn
the carb. 90 degrees which puts the bowl stick out toward the drivers
side. The thing will not flood out even when the wheels start coming
up (I don't like to talk about how I know that). I bought a Purolator
universal replacement pump at Advanced with the right pressure rating.

"c" <c@me.org> wrote in message news:<UehUb.31064$sd.8394@twister.rdc-kc.rr.com>...
> "Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
> news:40216b30_3@newspeer2.tds.net...
> > I got a problem, I put a weber carb on my 256 awhile back and have noticed
> > that it has been running rich. After many hours of adjusting and tweaking
> > the carb I called Weber and they said that I need to knock down my fuel
> > pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb
> needs
> > 2.5-3psi. All the parts stores that I have talked to say that there is
> > nothing I can use to drop the pressure. I would think that there has to be
> > some sort of regulator that will output a fixed or adjustable pressure
> that
> > I can put in the fuel line after the pump. If anyone knows of a part # or
> > manufacture that I can get something to fix this I would be forever in
> your
> > debt. Thanks
> >
> >
> > Scott
> > 90YJ
> >
>
> You need a regulator for your system. These are readily available from many
> places. Weber carbs "like" lower fuel pressure than most carbs (2-4 PSI).
> Here is some info on recommended pressure for the Weber carbs:
>
> <http://bimmer.roadfly.org/2002/messages/archive/msgsy2001w12/89239.html>
> http://www.racetep.com/webfuelspark.html#webfuel
>
>
> Here is a regulator you can use:
> http://store.summitracing.com/partde...HLY%2D12%2D804
>
>
> Chris

 

There are different regulators for different ranges of fuel pressure. The
one I recommended is rated for 1-4 PSI, which will not restrict the fuel
flow like the higher pressure regulators will. Most regulators are rated to
go down to about 4 PSI, and trying to get them to run at 2 PSI or so will
cause a fuel starvation problem.

Chris

"cj573cj5" <cj573cj5@yahoo.com> wrote in message
news:6f04a5f7.0402050451.1d09d941@posting.google.c om...
> I had this same problem. I fiddled around with everything in the
> carberator and tried the pressure regulator. The pressure regulator
> could not be turned down to a low enough pressure without starving the
> carberator for fuel. I bought an electric fuel pump rated for the
> correct low pressure and it has run like a dream for two years. I was
> able to lower the float to keep off camber flooding to a minimum.
> Another trick if your replace a one barrel with the Weber is to turn
> the carb. 90 degrees which puts the bowl stick out toward the drivers
> side. The thing will not flood out even when the wheels start coming
> up (I don't like to talk about how I know that). I bought a Purolator
> universal replacement pump at Advanced with the right pressure rating.
>
> "c" <c@me.org> wrote in message
news:<UehUb.31064$sd.8394@twister.rdc-kc.rr.com>...
> > "Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
> > news:40216b30_3@newspeer2.tds.net...
> > > I got a problem, I put a weber carb on my 256 awhile back and have
noticed
> > > that it has been running rich. After many hours of adjusting and
tweaking
> > > the carb I called Weber and they said that I need to knock down my
fuel
> > > pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb
> > needs
> > > 2.5-3psi. All the parts stores that I have talked to say that there is
> > > nothing I can use to drop the pressure. I would think that there has
to be
> > > some sort of regulator that will output a fixed or adjustable pressure
> > that
> > > I can put in the fuel line after the pump. If anyone knows of a part #
or
> > > manufacture that I can get something to fix this I would be forever in
> > your
> > > debt. Thanks
> > >
> > >
> > > Scott
> > > 90YJ
> > >
> >
> > You need a regulator for your system. These are readily available from
many
> > places. Weber carbs "like" lower fuel pressure than most carbs (2-4
PSI).
> > Here is some info on recommended pressure for the Weber carbs:
> >
> >
<http://bimmer.roadfly.org/2002/messages/archive/msgsy2001w12/89239.html>
> > http://www.racetep.com/webfuelspark.html#webfuel
> >
> >
> > Here is a regulator you can use:
> > http://store.summitracing.com/partde...HLY%2D12%2D804
> >
> >
> > Chris

 

There are different regulators for different ranges of fuel pressure. The
one I recommended is rated for 1-4 PSI, which will not restrict the fuel
flow like the higher pressure regulators will. Most regulators are rated to
go down to about 4 PSI, and trying to get them to run at 2 PSI or so will
cause a fuel starvation problem.

Chris

"cj573cj5" <cj573cj5@yahoo.com> wrote in message
news:6f04a5f7.0402050451.1d09d941@posting.google.c om...
> I had this same problem. I fiddled around with everything in the
> carberator and tried the pressure regulator. The pressure regulator
> could not be turned down to a low enough pressure without starving the
> carberator for fuel. I bought an electric fuel pump rated for the
> correct low pressure and it has run like a dream for two years. I was
> able to lower the float to keep off camber flooding to a minimum.
> Another trick if your replace a one barrel with the Weber is to turn
> the carb. 90 degrees which puts the bowl stick out toward the drivers
> side. The thing will not flood out even when the wheels start coming
> up (I don't like to talk about how I know that). I bought a Purolator
> universal replacement pump at Advanced with the right pressure rating.
>
> "c" <c@me.org> wrote in message
news:<UehUb.31064$sd.8394@twister.rdc-kc.rr.com>...
> > "Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
> > news:40216b30_3@newspeer2.tds.net...
> > > I got a problem, I put a weber carb on my 256 awhile back and have
noticed
> > > that it has been running rich. After many hours of adjusting and
tweaking
> > > the carb I called Weber and they said that I need to knock down my
fuel
> > > pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb
> > needs
> > > 2.5-3psi. All the parts stores that I have talked to say that there is
> > > nothing I can use to drop the pressure. I would think that there has
to be
> > > some sort of regulator that will output a fixed or adjustable pressure
> > that
> > > I can put in the fuel line after the pump. If anyone knows of a part #
or
> > > manufacture that I can get something to fix this I would be forever in
> > your
> > > debt. Thanks
> > >
> > >
> > > Scott
> > > 90YJ
> > >
> >
> > You need a regulator for your system. These are readily available from
many
> > places. Weber carbs "like" lower fuel pressure than most carbs (2-4
PSI).
> > Here is some info on recommended pressure for the Weber carbs:
> >
> >
<http://bimmer.roadfly.org/2002/messages/archive/msgsy2001w12/89239.html>
> > http://www.racetep.com/webfuelspark.html#webfuel
> >
> >
> > Here is a regulator you can use:
> > http://store.summitracing.com/partde...HLY%2D12%2D804
> >
> >
> > Chris

 

There are different regulators for different ranges of fuel pressure. The
one I recommended is rated for 1-4 PSI, which will not restrict the fuel
flow like the higher pressure regulators will. Most regulators are rated to
go down to about 4 PSI, and trying to get them to run at 2 PSI or so will
cause a fuel starvation problem.

Chris

"cj573cj5" <cj573cj5@yahoo.com> wrote in message
news:6f04a5f7.0402050451.1d09d941@posting.google.c om...
> I had this same problem. I fiddled around with everything in the
> carberator and tried the pressure regulator. The pressure regulator
> could not be turned down to a low enough pressure without starving the
> carberator for fuel. I bought an electric fuel pump rated for the
> correct low pressure and it has run like a dream for two years. I was
> able to lower the float to keep off camber flooding to a minimum.
> Another trick if your replace a one barrel with the Weber is to turn
> the carb. 90 degrees which puts the bowl stick out toward the drivers
> side. The thing will not flood out even when the wheels start coming
> up (I don't like to talk about how I know that). I bought a Purolator
> universal replacement pump at Advanced with the right pressure rating.
>
> "c" <c@me.org> wrote in message
news:<UehUb.31064$sd.8394@twister.rdc-kc.rr.com>...
> > "Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
> > news:40216b30_3@newspeer2.tds.net...
> > > I got a problem, I put a weber carb on my 256 awhile back and have
noticed
> > > that it has been running rich. After many hours of adjusting and
tweaking
> > > the carb I called Weber and they said that I need to knock down my
fuel
> > > pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb
> > needs
> > > 2.5-3psi. All the parts stores that I have talked to say that there is
> > > nothing I can use to drop the pressure. I would think that there has
to be
> > > some sort of regulator that will output a fixed or adjustable pressure
> > that
> > > I can put in the fuel line after the pump. If anyone knows of a part #
or
> > > manufacture that I can get something to fix this I would be forever in
> > your
> > > debt. Thanks
> > >
> > >
> > > Scott
> > > 90YJ
> > >
> >
> > You need a regulator for your system. These are readily available from
many
> > places. Weber carbs "like" lower fuel pressure than most carbs (2-4
PSI).
> > Here is some info on recommended pressure for the Weber carbs:
> >
> >
<http://bimmer.roadfly.org/2002/messages/archive/msgsy2001w12/89239.html>
> > http://www.racetep.com/webfuelspark.html#webfuel
> >
> >
> > Here is a regulator you can use:
> > http://store.summitracing.com/partde...HLY%2D12%2D804
> >
> >
> > Chris