'88 YJ sputtering question
 

I have a '88 YJ with the 4.2 liter inline 6. The engine does have
quite a few miles on it but seems to do alright. The question I have
is why would it hesitate and sputter at low rpm's when I load the
engine? For example, when starting out from a stop? The Carter BBD I
rebuilt not long ago and now I just put a Motorcraft 2100 on and I
still have the same problem? Also, with both carburetors I can't seem
to get the idle rpms down from about 1000. What should I look at? I
have adjusted the idle screws and the mixture screws. In fact, the
idle screw isn't even touching now to get it down to 1000. Any help
would be appreciated.

Re: '88 YJ sputtering question
 

Have you checked everywhere for air leaks or a missing/cracked/broken hose?

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Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Brilliant Black Crystal Pearl Coat
Sharing is why we are all here....... or should be.
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"rjmax" <rjmax_72@hotmail.com> wrote in message
news:1124977239.979754.67720@z14g2000cwz.googlegro ups.com...
>I have a '88 YJ with the 4.2 liter inline 6. The engine does have
> quite a few miles on it but seems to do alright. The question I have
> is why would it hesitate and sputter at low rpm's when I load the
> engine? For example, when starting out from a stop? The Carter BBD I
> rebuilt not long ago and now I just put a Motorcraft 2100 on and I
> still have the same problem? Also, with both carburetors I can't seem
> to get the idle rpms down from about 1000. What should I look at? I
> have adjusted the idle screws and the mixture screws. In fact, the
> idle screw isn't even touching now to get it down to 1000. Any help
> would be appreciated.
>

Re: '88 YJ sputtering question
 

Have you checked everywhere for air leaks or a missing/cracked/broken hose?

--
..
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Brilliant Black Crystal Pearl Coat
Sharing is why we are all here....... or should be.
..
"rjmax" <rjmax_72@hotmail.com> wrote in message
news:1124977239.979754.67720@z14g2000cwz.googlegro ups.com...
>I have a '88 YJ with the 4.2 liter inline 6. The engine does have
> quite a few miles on it but seems to do alright. The question I have
> is why would it hesitate and sputter at low rpm's when I load the
> engine? For example, when starting out from a stop? The Carter BBD I
> rebuilt not long ago and now I just put a Motorcraft 2100 on and I
> still have the same problem? Also, with both carburetors I can't seem
> to get the idle rpms down from about 1000. What should I look at? I
> have adjusted the idle screws and the mixture screws. In fact, the
> idle screw isn't even touching now to get it down to 1000. Any help
> would be appreciated.
>

Re: '88 YJ sputtering question
 

Have you checked everywhere for air leaks or a missing/cracked/broken hose?

--
..
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Brilliant Black Crystal Pearl Coat
Sharing is why we are all here....... or should be.
..
"rjmax" <rjmax_72@hotmail.com> wrote in message
news:1124977239.979754.67720@z14g2000cwz.googlegro ups.com...
>I have a '88 YJ with the 4.2 liter inline 6. The engine does have
> quite a few miles on it but seems to do alright. The question I have
> is why would it hesitate and sputter at low rpm's when I load the
> engine? For example, when starting out from a stop? The Carter BBD I
> rebuilt not long ago and now I just put a Motorcraft 2100 on and I
> still have the same problem? Also, with both carburetors I can't seem
> to get the idle rpms down from about 1000. What should I look at? I
> have adjusted the idle screws and the mixture screws. In fact, the
> idle screw isn't even touching now to get it down to 1000. Any help
> would be appreciated.
>

Re: '88 YJ sputtering question
 

Have you checked everywhere for air leaks or a missing/cracked/broken hose?

--
..
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Brilliant Black Crystal Pearl Coat
Sharing is why we are all here....... or should be.
..
"rjmax" <rjmax_72@hotmail.com> wrote in message
news:1124977239.979754.67720@z14g2000cwz.googlegro ups.com...
>I have a '88 YJ with the 4.2 liter inline 6. The engine does have
> quite a few miles on it but seems to do alright. The question I have
> is why would it hesitate and sputter at low rpm's when I load the
> engine? For example, when starting out from a stop? The Carter BBD I
> rebuilt not long ago and now I just put a Motorcraft 2100 on and I
> still have the same problem? Also, with both carburetors I can't seem
> to get the idle rpms down from about 1000. What should I look at? I
> have adjusted the idle screws and the mixture screws. In fact, the
> idle screw isn't even touching now to get it down to 1000. Any help
> would be appreciated.
>

Re: '88 YJ sputtering question
 

Sounds like vaccuum leak



"rjmax" <rjmax_72@hotmail.com> wrote in message
news:1124977239.979754.67720@z14g2000cwz.googlegro ups.com...
>I have a '88 YJ with the 4.2 liter inline 6. The engine does have
> quite a few miles on it but seems to do alright. The question I have
> is why would it hesitate and sputter at low rpm's when I load the
> engine? For example, when starting out from a stop? The Carter BBD I
> rebuilt not long ago and now I just put a Motorcraft 2100 on and I
> still have the same problem? Also, with both carburetors I can't seem
> to get the idle rpms down from about 1000. What should I look at? I
> have adjusted the idle screws and the mixture screws. In fact, the
> idle screw isn't even touching now to get it down to 1000. Any help
> would be appreciated.
>

Re: '88 YJ sputtering question
 

Sounds like vaccuum leak



"rjmax" <rjmax_72@hotmail.com> wrote in message
news:1124977239.979754.67720@z14g2000cwz.googlegro ups.com...
>I have a '88 YJ with the 4.2 liter inline 6. The engine does have
> quite a few miles on it but seems to do alright. The question I have
> is why would it hesitate and sputter at low rpm's when I load the
> engine? For example, when starting out from a stop? The Carter BBD I
> rebuilt not long ago and now I just put a Motorcraft 2100 on and I
> still have the same problem? Also, with both carburetors I can't seem
> to get the idle rpms down from about 1000. What should I look at? I
> have adjusted the idle screws and the mixture screws. In fact, the
> idle screw isn't even touching now to get it down to 1000. Any help
> would be appreciated.
>

Re: '88 YJ sputtering question
 

Sounds like vaccuum leak



"rjmax" <rjmax_72@hotmail.com> wrote in message
news:1124977239.979754.67720@z14g2000cwz.googlegro ups.com...
>I have a '88 YJ with the 4.2 liter inline 6. The engine does have
> quite a few miles on it but seems to do alright. The question I have
> is why would it hesitate and sputter at low rpm's when I load the
> engine? For example, when starting out from a stop? The Carter BBD I
> rebuilt not long ago and now I just put a Motorcraft 2100 on and I
> still have the same problem? Also, with both carburetors I can't seem
> to get the idle rpms down from about 1000. What should I look at? I
> have adjusted the idle screws and the mixture screws. In fact, the
> idle screw isn't even touching now to get it down to 1000. Any help
> would be appreciated.
>

Re: '88 YJ sputtering question
 

Sounds like vaccuum leak



"rjmax" <rjmax_72@hotmail.com> wrote in message
news:1124977239.979754.67720@z14g2000cwz.googlegro ups.com...
>I have a '88 YJ with the 4.2 liter inline 6. The engine does have
> quite a few miles on it but seems to do alright. The question I have
> is why would it hesitate and sputter at low rpm's when I load the
> engine? For example, when starting out from a stop? The Carter BBD I
> rebuilt not long ago and now I just put a Motorcraft 2100 on and I
> still have the same problem? Also, with both carburetors I can't seem
> to get the idle rpms down from about 1000. What should I look at? I
> have adjusted the idle screws and the mixture screws. In fact, the
> idle screw isn't even touching now to get it down to 1000. Any help
> would be appreciated.
>

Re: '88 YJ sputtering question
 

When I put the Motorcraft 2100 on I found a hose or two that might have
been a problem so I replaced them. I will check around for some more
vaccuum leaks. Thanks for the suggestions. Any other ideas?