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I have a 1988 carburetor that has a cloged idle jet and I need to unclog it How do I do it? What is the best way to do that?

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Unscrew the idle mixture screw,count the turns,blow down hole with compressed air,rescrew screw back in.if it works,ok.if it doesnt work,youll have to strip carbie and clean it inside,jets,galleries,everything thoroughly.may need new gasket set.lay it all out carefully,on large sheet of newspaper,.if two barrel,dont get jets mixed up from one barrel to the other..have clean container of petrol to rinse and wash each part.use fine wire to clean any jets/air bleed holes etc..blow dry bits away from work place..use widest screwdriver blade that will fit,saves damaging jets[in fact,buy a new set of screwdrivers]

Posted on Jul 08, 2010

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Craftsman gas pressure model#580-752220 willnot stay running. Only after you push the primer 10-20 times it will start &run for 5-10sec..It will run if you pour gas in carburetor.If you quit with the...


Sounds like the idle jet in the carb is plugged up.

It only stays running from the primer load, then dies when that is used up, as the gas can not get from the float bowl through the idle jet.

Did you store it for a while with the gas still in it?

If so, what happens is the gas starts to go bad, and over time it can get almost like a varnish.

When this happens, it starts plugging up the small ports in the carb, starting with the smallest, which is the idle jet.

Before storing for any length of time, your best bet is to drain the gas and run the float bowl dry.
If not that, at least add some fuel stabilizer to the gas left in it, and run it for about 5 minutes with the stabilizer in the fuel.

May 31, 2014 | Cars & Trucks

1 Answer

Weber carburetor problems


There could be many reasons for your problem but most likely the pilot jet is clogged, there is no voltage on the idle solenoid switch or the solenoid is short or defective.
To solve the problem please do the following:
- Firstly disconnect the solenoid connector, switch on the ignition and measure the harness side voltage with digital multimeter. It should read 11.5 - 12.5 volts. If there is no voltage, check the fuse and wiring.
- If it is found OK, remove the air filter box, remove the carburetor, remove the carburetor top by unscrewing the top Philips type screws.
- Look into the main carburetor body from top, there you would find a brass screw in one of the holes, this is the pilot jet.
- Unscrew the jet with flat type screw driver. Look through it. If you cannot see light through it, it is clogged. Clean it with compressed air.
- Clean up the hole in top plate, clean the whole carburetor and put every thing back nicely.
- Warm up the engine and adjust the idle air mixture and idle speed.

Apr 04, 2014 | 1983 Toyota Corolla Deluxe

1 Answer

Locating Heater core on 2000 GMC jimmy


heater core is cloged suggest replacing it or tryin to unclog with compressed air

Jan 03, 2013 | 2000 GMC Jimmy

1 Answer

I am lacking power and need to adjust my carburetor


the idle mixture screws are only for mixture adjustment at idle
at speed the idle circuit acts as a emulsifier tube to help with the fuel in the main jet
what you need is adjustable main jets or fixed jets for that altitude
talk with an accredited carby overhaul shop that knows about the carby you have fitted and the appropriate jets to use

Apr 12, 2017 | Dodge D150 Cars & Trucks

1 Answer

1987 vw cabriolet idles up and down. When you accelerate it bogs. If you come off gas pedal a little rpms pick up. Has new distributor, coil, fuel pump, plugs and wires. Also cold start vavle replaced....


At that point, I think the best thing to do would be having the carburetor taken off, take it apart, put it in some gunk remover (Carburetor Cleaner sold in 1 gallon barrels), then wirebrush it all out, make sure all the jets are clean, buy a carburetor repair kit, and put it all back together with new seals. At how old your car is, it would probably be best for it. On the cheap side, all that needs to be done is having the carburetor's throttle accelerator pump fixed (Squirter). A shop should be able to do all this, but it's not hard, either.

Jun 24, 2011 | 1985 Volkswagen Cabriolet

1 Answer

Starts good, takes throttle, no idle.


Hello,
You may have idle jet is get problem or vacuum leaks. For temporary remedy, use a carburetor cleaner to clean your carburetor and found the vacuum leaks. For complete cleaning, dissemble your carburetor and have the jets, linkages cleaned. And check hoses linked to your carburetor for leakages.

Dec 10, 2010 | 1987 Toyota Corolla 2 Door

1 Answer

MY IS IDOLING VERY FAST NEED TO USE BOTH FEET TO KEEP CAR FROM MOVING FORWARD FAST


IF YOU HAVE CARBURETOR. IDLE SPEED TOO HIGH NEED ADJUSTING. CHECK ACCELERATOR LINKAGE OR CABLE COULD BE IN A BIND CAUSING HIGH IDLE SPEED.MAKE SURE THE ACCELERATOR PEDAL FLOOR MAT NOT IN THE WAY.CHECK CARBURETOR MOUNTING BOLTS.RETIGHTEN TO MAKE YOU DONT HAVE A VACUUM LEAK BETWEEN CARBURETOR GASKET AND INTAKE MANIFOLD THAT WILL CAUSE HIGH IDLE SPEED.IF YOU HAVE FUEL INJECTION ENGINE LET A GARAGE SET THE TIMING AND IDLE.

Nov 22, 2010 | 1988 Toyota Corolla 4 Door

1 Answer

My 1988 gl 4 speed with carburator dies when put in nuetral just prior to a stop.


Way more info is needed. Check the fuel filter. Could be plugged just enough to starve at a low idle but gets enough when you have higher rpms. Does it sputter at an idle? Could be so many things, to electrical, including needing the carburetor rebuilt.

Apr 06, 2010 | 1988 Subaru GL-10

1 Answer

1988 daihatsu charade carburetor


If we are talking the three cylinder CB23 engine the mixture screw is hard to get to and has an anti tamper shroud to stop prying fingers.

The Aisan carby is pretty reliable and problems with them on these engines is usually due to improper vacuum hose connections, or improperly adjusted idle, fast idle and deceleration screws.

A/F ratio is around the standard 14.7, but being a carby you will not get consistent mixtures because the jets sizes are fixed . On an EFI engine you can control the fuel flow, but not so with jets.

If you do decide to give your carby a birthday make sure you only buy the Daihatsu genuine, because the after market units have issues with quality. The minor rebuild kit part No 0421287704000 and the major overhaul kit with plunger, needles, gaskets, clips, etc is part No 0421187729000.

If it was me I'd be concentrating on the hoses, the PCV valve, contact points in the dizzy and better spark plugs first. If you want much better idling and a bit better pull get an electronic dizzy and coil from a G200 series Charade.


Sep 07, 2008 | 1988 Daihatsu Charade

2 Answers

1988 F-250 460 engine stalls when dribing down the road


On older, carbureted engines, cold stalling (and hard starting) is most often due to an automatic choke that is sticking, misadjusted or broken. Cleaning the choke mechanism with aerosol carburetor cleaner may free up the choke allowing it to work properly again. If the choke housing as an electrical heating element, the element may not be receiving voltage when the key is on, or the element may have burned out (check resistance with an ohmmeter).

Other causes of stalling with a carburetor include an idle speed adjustment screw that is set too low (turn screw to increase idle speed rpm). The engine may stall if the idle fuel mixture screw(s) are not adjusted correctly or the idle mixture port(s) are dirty or clogged with fuel varnish deposits (clean the carburetor and readjust the idle mixture screws for smoothest idle). Stalling can also occur is there are vacuum leaks in the carburetor, under the carburetor (bad base gasket), or any vacuum hose connections to the carburetor or intake manifold

Jun 22, 2008 | 1988 Ford F 250

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