Adjusting 1986 Accord Carburator
 

Does anyone know of a web site or have information available for the
proper sequence of adjusing all the different idle adjusting screws
on the 1986-89 Accord carburator?
I cleaned the carburator (which was full of dissolved filter
material) and repaired all the broken diaphragms attached to the
carburator, but am at a loss how to correctly adjust all the idle
adjustments that this carburator has.

TIA
Bill

Re: Adjusting 1986 Accord Carburator
 

You might try the free online Accord manual at
www.autozone.com.

The Prelude factory service manual at
http://www.honda.co.uk/car/owner/workshop.html might also be
helpful.

<wpapps@verizon.net> wrote
> Does anyone know of a web site or have information
> available for the
> proper sequence of adjusing all the different idle
> adjusting screws
> on the 1986-89 Accord carburator?
> I cleaned the carburator (which was full of dissolved
> filter
> material) and repaired all the broken diaphragms attached
> to the
> carburator, but am at a loss how to correctly adjust all
> the idle
> adjustments that this carburator has.
>
> TIA
> Bill

Re: Adjusting 1986 Accord Carburator
 

You might try the free online Accord manual at
www.autozone.com.

The Prelude factory service manual at
http://www.honda.co.uk/car/owner/workshop.html might also be
helpful.

<wpapps@verizon.net> wrote
> Does anyone know of a web site or have information
> available for the
> proper sequence of adjusing all the different idle
> adjusting screws
> on the 1986-89 Accord carburator?
> I cleaned the carburator (which was full of dissolved
> filter
> material) and repaired all the broken diaphragms attached
> to the
> carburator, but am at a loss how to correctly adjust all
> the idle
> adjustments that this carburator has.
>
> TIA
> Bill

Re: Adjusting 1986 Accord Carburator
 

You might try the free online Accord manual at
www.autozone.com.

The Prelude factory service manual at
http://www.honda.co.uk/car/owner/workshop.html might also be
helpful.

<wpapps@verizon.net> wrote
> Does anyone know of a web site or have information
> available for the
> proper sequence of adjusing all the different idle
> adjusting screws
> on the 1986-89 Accord carburator?
> I cleaned the carburator (which was full of dissolved
> filter
> material) and repaired all the broken diaphragms attached
> to the
> carburator, but am at a loss how to correctly adjust all
> the idle
> adjustments that this carburator has.
>
> TIA
> Bill

Re: Adjusting 1986 Accord Carburator
 

wpapps@verizon.net wrote:
>
> Does anyone know of a web site or have information available for the
> proper sequence of adjusing all the different idle adjusting screws
> on the 1986-89 Accord carburator?
> I cleaned the carburator (which was full of dissolved filter
> material) and repaired all the broken diaphragms attached to the
> carburator, but am at a loss how to correctly adjust all the idle
> adjustments that this carburator has.
>

To set the fuel mixture manually, you'll need to perform a propane boost
test. The tool distributors make an expensive special tool for this but you
don't need it. Just get a regular propane torch and remove the flame tip.
Now, attach a section of plastic tubing about 5 feet long. Attach a
tachometer, and with the car running, remove the top of the air cleaner and
slowly feed propane into the primary barrel of the carburetor, i.e., open
the torch's valve slowly and continue until the idle peaks out (but stop if
it's more than 500 rpm you may need to adjust the idle mixture screw before
proceeding). You should get an idle boost of about 100 rpm when the fuel
mixture is set correctly. Adjust the idle mixture screw so that you get the
correct amount of boost. Afterwards, set the idle speed screw to the specs
on the underhood sticker, usually about 800-850 rpm for a car with a manual
transmission, and recheck the timing.

Eric

Re: Adjusting 1986 Accord Carburator
 

wpapps@verizon.net wrote:
>
> Does anyone know of a web site or have information available for the
> proper sequence of adjusing all the different idle adjusting screws
> on the 1986-89 Accord carburator?
> I cleaned the carburator (which was full of dissolved filter
> material) and repaired all the broken diaphragms attached to the
> carburator, but am at a loss how to correctly adjust all the idle
> adjustments that this carburator has.
>

To set the fuel mixture manually, you'll need to perform a propane boost
test. The tool distributors make an expensive special tool for this but you
don't need it. Just get a regular propane torch and remove the flame tip.
Now, attach a section of plastic tubing about 5 feet long. Attach a
tachometer, and with the car running, remove the top of the air cleaner and
slowly feed propane into the primary barrel of the carburetor, i.e., open
the torch's valve slowly and continue until the idle peaks out (but stop if
it's more than 500 rpm you may need to adjust the idle mixture screw before
proceeding). You should get an idle boost of about 100 rpm when the fuel
mixture is set correctly. Adjust the idle mixture screw so that you get the
correct amount of boost. Afterwards, set the idle speed screw to the specs
on the underhood sticker, usually about 800-850 rpm for a car with a manual
transmission, and recheck the timing.

Eric

Re: Adjusting 1986 Accord Carburator
 

wpapps@verizon.net wrote:
>
> Does anyone know of a web site or have information available for the
> proper sequence of adjusing all the different idle adjusting screws
> on the 1986-89 Accord carburator?
> I cleaned the carburator (which was full of dissolved filter
> material) and repaired all the broken diaphragms attached to the
> carburator, but am at a loss how to correctly adjust all the idle
> adjustments that this carburator has.
>

To set the fuel mixture manually, you'll need to perform a propane boost
test. The tool distributors make an expensive special tool for this but you
don't need it. Just get a regular propane torch and remove the flame tip.
Now, attach a section of plastic tubing about 5 feet long. Attach a
tachometer, and with the car running, remove the top of the air cleaner and
slowly feed propane into the primary barrel of the carburetor, i.e., open
the torch's valve slowly and continue until the idle peaks out (but stop if
it's more than 500 rpm you may need to adjust the idle mixture screw before
proceeding). You should get an idle boost of about 100 rpm when the fuel
mixture is set correctly. Adjust the idle mixture screw so that you get the
correct amount of boost. Afterwards, set the idle speed screw to the specs
on the underhood sticker, usually about 800-850 rpm for a car with a manual
transmission, and recheck the timing.

Eric

Re: Adjusting 1986 Accord Carburator
 

Eric wrote:
> wpapps@verizon.net wrote:
>
>>Does anyone know of a web site or have information available for the
>>proper sequence of adjusing all the different idle adjusting screws
>>on the 1986-89 Accord carburator?
>>I cleaned the carburator (which was full of dissolved filter
>>material) and repaired all the broken diaphragms attached to the
>>carburator, but am at a loss how to correctly adjust all the idle
>>adjustments that this carburator has.
>>
>
>
> To set the fuel mixture manually, you'll need to perform a propane boost
> test. The tool distributors make an expensive special tool for this but you
> don't need it. Just get a regular propane torch and remove the flame tip.
> Now, attach a section of plastic tubing about 5 feet long. Attach a
> tachometer, and with the car running, remove the top of the air cleaner and
> slowly feed propane into the primary barrel of the carburetor, i.e., open
> the torch's valve slowly and continue until the idle peaks out (but stop if
> it's more than 500 rpm you may need to adjust the idle mixture screw before
> proceeding). You should get an idle boost of about 100 rpm when the fuel
> mixture is set correctly. Adjust the idle mixture screw so that you get the
> correct amount of boost. Afterwards, set the idle speed screw to the specs
> on the underhood sticker, usually about 800-850 rpm for a car with a manual
> transmission, and recheck the timing.

That's IF you have a carb with a idle-mixture adjustment screw. Some
models don't have it.

Re: Adjusting 1986 Accord Carburator
 

Eric wrote:
> wpapps@verizon.net wrote:
>
>>Does anyone know of a web site or have information available for the
>>proper sequence of adjusing all the different idle adjusting screws
>>on the 1986-89 Accord carburator?
>>I cleaned the carburator (which was full of dissolved filter
>>material) and repaired all the broken diaphragms attached to the
>>carburator, but am at a loss how to correctly adjust all the idle
>>adjustments that this carburator has.
>>
>
>
> To set the fuel mixture manually, you'll need to perform a propane boost
> test. The tool distributors make an expensive special tool for this but you
> don't need it. Just get a regular propane torch and remove the flame tip.
> Now, attach a section of plastic tubing about 5 feet long. Attach a
> tachometer, and with the car running, remove the top of the air cleaner and
> slowly feed propane into the primary barrel of the carburetor, i.e., open
> the torch's valve slowly and continue until the idle peaks out (but stop if
> it's more than 500 rpm you may need to adjust the idle mixture screw before
> proceeding). You should get an idle boost of about 100 rpm when the fuel
> mixture is set correctly. Adjust the idle mixture screw so that you get the
> correct amount of boost. Afterwards, set the idle speed screw to the specs
> on the underhood sticker, usually about 800-850 rpm for a car with a manual
> transmission, and recheck the timing.

That's IF you have a carb with a idle-mixture adjustment screw. Some
models don't have it.

Re: Adjusting 1986 Accord Carburator
 

Eric wrote:
> wpapps@verizon.net wrote:
>
>>Does anyone know of a web site or have information available for the
>>proper sequence of adjusing all the different idle adjusting screws
>>on the 1986-89 Accord carburator?
>>I cleaned the carburator (which was full of dissolved filter
>>material) and repaired all the broken diaphragms attached to the
>>carburator, but am at a loss how to correctly adjust all the idle
>>adjustments that this carburator has.
>>
>
>
> To set the fuel mixture manually, you'll need to perform a propane boost
> test. The tool distributors make an expensive special tool for this but you
> don't need it. Just get a regular propane torch and remove the flame tip.
> Now, attach a section of plastic tubing about 5 feet long. Attach a
> tachometer, and with the car running, remove the top of the air cleaner and
> slowly feed propane into the primary barrel of the carburetor, i.e., open
> the torch's valve slowly and continue until the idle peaks out (but stop if
> it's more than 500 rpm you may need to adjust the idle mixture screw before
> proceeding). You should get an idle boost of about 100 rpm when the fuel
> mixture is set correctly. Adjust the idle mixture screw so that you get the
> correct amount of boost. Afterwards, set the idle speed screw to the specs
> on the underhood sticker, usually about 800-850 rpm for a car with a manual
> transmission, and recheck the timing.

That's IF you have a carb with a idle-mixture adjustment screw. Some
models don't have it.

Re: Adjusting 1986 Accord Carburator
 

Matt Ion wrote:
>
> Eric wrote:
> > wpapps@verizon.net wrote:
> >
> >>Does anyone know of a web site or have information available for the
> >>proper sequence of adjusing all the different idle adjusting screws
> >>on the 1986-89 Accord carburator?
> >>I cleaned the carburator (which was full of dissolved filter
> >>material) and repaired all the broken diaphragms attached to the
> >>carburator, but am at a loss how to correctly adjust all the idle
> >>adjustments that this carburator has.
> >>
> >
> >
> > To set the fuel mixture manually, you'll need to perform a propane
> > boost test. The tool distributors make an expensive special tool for
> > this but you don't need it. Just get a regular propane torch and
> > remove the flame tip. Now, attach a section of plastic tubing about 5
> > feet long. Attach a tachometer, and with the car running, remove the
> > top of the air cleaner and slowly feed propane into the primary barrel
> > of the carburetor, i.e., open the torch's valve slowly and continue
> > until the idle peaks out (but stop if it's more than 500 rpm you may
> > need to adjust the idle mixture screw before proceeding). You should
> > get an idle boost of about 100 rpm when the fuel mixture is set
> > correctly. Adjust the idle mixture screw so that you get the
> > correct amount of boost. Afterwards, set the idle speed screw to the
> > specs on the underhood sticker, usually about 800-850 rpm for a car
> > with a manual transmission, and recheck the timing.
>
> That's IF you have a carb with a idle-mixture adjustment screw. Some
> models don't have it.

I've never seen a Honda carburetor without a mixture screw. However, on
many models, Honda installed a metal guard type plug over the mixture
screw. The mixture screw can still be accessed but the plug has to be
removed first and this usually requires removing the carburetor since the
screw is at the bottom back end of the carburetor next to the firewall.

Eric

Re: Adjusting 1986 Accord Carburator
 

Matt Ion wrote:
>
> Eric wrote:
> > wpapps@verizon.net wrote:
> >
> >>Does anyone know of a web site or have information available for the
> >>proper sequence of adjusing all the different idle adjusting screws
> >>on the 1986-89 Accord carburator?
> >>I cleaned the carburator (which was full of dissolved filter
> >>material) and repaired all the broken diaphragms attached to the
> >>carburator, but am at a loss how to correctly adjust all the idle
> >>adjustments that this carburator has.
> >>
> >
> >
> > To set the fuel mixture manually, you'll need to perform a propane
> > boost test. The tool distributors make an expensive special tool for
> > this but you don't need it. Just get a regular propane torch and
> > remove the flame tip. Now, attach a section of plastic tubing about 5
> > feet long. Attach a tachometer, and with the car running, remove the
> > top of the air cleaner and slowly feed propane into the primary barrel
> > of the carburetor, i.e., open the torch's valve slowly and continue
> > until the idle peaks out (but stop if it's more than 500 rpm you may
> > need to adjust the idle mixture screw before proceeding). You should
> > get an idle boost of about 100 rpm when the fuel mixture is set
> > correctly. Adjust the idle mixture screw so that you get the
> > correct amount of boost. Afterwards, set the idle speed screw to the
> > specs on the underhood sticker, usually about 800-850 rpm for a car
> > with a manual transmission, and recheck the timing.
>
> That's IF you have a carb with a idle-mixture adjustment screw. Some
> models don't have it.

I've never seen a Honda carburetor without a mixture screw. However, on
many models, Honda installed a metal guard type plug over the mixture
screw. The mixture screw can still be accessed but the plug has to be
removed first and this usually requires removing the carburetor since the
screw is at the bottom back end of the carburetor next to the firewall.

Eric

Re: Adjusting 1986 Accord Carburator
 

Matt Ion wrote:
>
> Eric wrote:
> > wpapps@verizon.net wrote:
> >
> >>Does anyone know of a web site or have information available for the
> >>proper sequence of adjusing all the different idle adjusting screws
> >>on the 1986-89 Accord carburator?
> >>I cleaned the carburator (which was full of dissolved filter
> >>material) and repaired all the broken diaphragms attached to the
> >>carburator, but am at a loss how to correctly adjust all the idle
> >>adjustments that this carburator has.
> >>
> >
> >
> > To set the fuel mixture manually, you'll need to perform a propane
> > boost test. The tool distributors make an expensive special tool for
> > this but you don't need it. Just get a regular propane torch and
> > remove the flame tip. Now, attach a section of plastic tubing about 5
> > feet long. Attach a tachometer, and with the car running, remove the
> > top of the air cleaner and slowly feed propane into the primary barrel
> > of the carburetor, i.e., open the torch's valve slowly and continue
> > until the idle peaks out (but stop if it's more than 500 rpm you may
> > need to adjust the idle mixture screw before proceeding). You should
> > get an idle boost of about 100 rpm when the fuel mixture is set
> > correctly. Adjust the idle mixture screw so that you get the
> > correct amount of boost. Afterwards, set the idle speed screw to the
> > specs on the underhood sticker, usually about 800-850 rpm for a car
> > with a manual transmission, and recheck the timing.
>
> That's IF you have a carb with a idle-mixture adjustment screw. Some
> models don't have it.

I've never seen a Honda carburetor without a mixture screw. However, on
many models, Honda installed a metal guard type plug over the mixture
screw. The mixture screw can still be accessed but the plug has to be
removed first and this usually requires removing the carburetor since the
screw is at the bottom back end of the carburetor next to the firewall.

Eric

Re: Adjusting 1986 Accord Carburator
 

wpapps@verizon.net wrote:
>
> Does anyone know of a web site or have information available for the
> proper sequence of adjusing all the different idle adjusting screws
> on the 1986-89 Accord carburator?
> I cleaned the carburator (which was full of dissolved filter
> material) and repaired all the broken diaphragms attached to the
> carburator, but am at a loss how to correctly adjust all the idle
> adjustments that this carburator has.

I forgot to mention that the first step is usually to set the float height.
There should be a window on the side of the carburetor with a black dot at
the center. The float height adjustment is correct when the fuel level is
at the center of the black dot in the window.

Eric

Re: Adjusting 1986 Accord Carburator
 

wpapps@verizon.net wrote:
>
> Does anyone know of a web site or have information available for the
> proper sequence of adjusing all the different idle adjusting screws
> on the 1986-89 Accord carburator?
> I cleaned the carburator (which was full of dissolved filter
> material) and repaired all the broken diaphragms attached to the
> carburator, but am at a loss how to correctly adjust all the idle
> adjustments that this carburator has.

I forgot to mention that the first step is usually to set the float height.
There should be a window on the side of the carburetor with a black dot at
the center. The float height adjustment is correct when the fuel level is
at the center of the black dot in the window.

Eric