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I have a 73 beetle. The engine cuts out when I slow for a stop. Starts right up again but I then have to work at keeping it going. Help!?

7 Answers

  • 5 months ago

    Try removing the idle jet in the side of carb. It's the one set at an angle.

    Remove idle jet & spray with carb cleaner & compressed air. Had this happen loads of times & easily fixed

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  • Anonymous
    5 months ago

    The rubber vacuum hoses do not last forever.. Pull them off the carb. Now squeeze the hose end with your thumb nail into your pointer finger. The hose is suppose to be made out of RUBBER, so it should squeeze flat. If it is as hard as steel....then the elasticity has been "cooked" out by the hot engine. Cut off about an inch. Try the squeeze. It now is like rubber Now it will fit tighter onto the brass nib. Check all vacuum lines at both ends. If the line ends up too short if you cut the hard stuff off, you then have to go down to the VW joint and buy the same hose FROM THEM. jUST TAKE OFF THE OLD ONE AND WALK INTO THE Dealer parts department and show what you got . They got the hose on a roll so they sell it by the foot . Grey hose is a certain size, Green is a smaller size and Red is a different size again. Having it extra long will not hurt it, it is just for when you need to nip some got lots to play with. There is no clamp. The size of the hose is tight enough. (maybe you check the hardness every 7 years? So you are a few years past 7. Really a minor thing. But that is ALL. No need to do anything else.

    Right now BECAUSE it is sucking in extra air, it is running lean.

    Fix the hoses and that is all.

    Had a 1970 & later 73 Super Beetle. I had to do that to those hoses.  With the stock air cleaner. 

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  • W
    Lv 4
    6 months ago

    Might be a vacuum leak, or your running too lean.

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  • 6 months ago

    with the ignition in the on position with out the motor running pull the wire off of the electric idle solenoid on the side of the carb to see if the solenoid clicks when you put the wire back on the solenoid. If no clicking replace the idle solenoid.

    People always mess up the carb adjustments. The screw on the throttle arm that rides on the choke plate step cam needs to have 1 mm of clearance to the step cam when the choke butterfly is fully open. That's not an idle adjustment screw. To set the idle speed you turn the large diameter screw on the side of the carb out for higher idle or in to lower the idle speed. If you don't get any response adjusting the carb take the jets out and spray them with carb cleaner and blow them out with compressed air. Clean the orifices in the electric idle solenoid too.

    Only use Bosch spark plugs.

    The plug wire ends that snap onto the spark plugs develop open circuits and many times need replacing.

    Valves should be adjusted every 6,000 miles.

    Source(s): Mitsubishi Master Tech / 1970 VW Apprentice with VW.
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  • Andy
    Lv 6
    6 months ago

    Sounds like you have a problem with the idle control or perhaps a vacuum leak in a hose.

    This would be something for a mechanic to check unless you know what you are doing you could make it worse.

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  • Anonymous
    6 months ago

    First off adjust the idle speed on the carburetor. You're going to need to remove the top plate of your carburetor and service the needle and seat and or the Jets. or if you can simply find a new carburetor all the better. What's happening now friend is when you come to a stop the gasoline that's in the float chamber is splashing up out of the bowl and leaking into the carburetor throat. The gaskets are worn out. And the float is worn out. If you can find carburetor it'll save you a lot of trying to figure out what it is with the carburetor.

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  • David
    Lv 7
    6 months ago

    Maybe carb needs adjusting or fuel supply problems.

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