How do you use carb cleaner? In order to use a carburetor cleaner, the engine needs to first be turned off and allowed to cool down. It is important to keep the engine off while working on the carburettor. Next, the air filter and the cover of the carburetor is removed. At this point, large chunks of debris visible around the carburetor can be removed with an old rag or paper towels. What is Onan 4c carb cleaner used for? How do you adjust a Polaris carburetor? What are the symptoms of a carburetor vacuum line leak? It is not necessary to take the entire carburetor apart; just removing a few screws exposes enough of the carburetor. Once the carburetor is exposed, it's time to spray the cleaner. Position the can close to the carburetor, and spray all over its surface, inside the crevices and around the choke. Essentially, the goal is to soak the entire carburetor, inside and out. Once it is given a good spray, paper towels or an old rag work to wipe the grim away as much as possible.

Reaching every part as the carburetor is not crucial, as the cleaner dissolves most of the grime. cd dvd lens cleaningFinally, the pieces are put back together for a smooth-running machine. consumer reports air purifier ratings 2013Clean carburetors provide engines with an air- and fuel-mixture that allows it to run. commercial kitchen air purifierOver time, dirt, oil and grime collect on and in the carburetor, which prevents it from doing its job. Maintaining a clean carburetor allows the machine to run smoothly and efficiently. Learn more about Car Parts & Maintenance Where do you spray starting fluid in a car? Starting fluid can be sprayed into the carburetor bore, the air intake or a spark plug hole of an engine.

Starting fluids are used more often on carbureted... Car Parts & Maintenance How can you tell the size and type of a Holley carburetor? In order to find out information about a Holley carburetor, including sizes and types of carburetors, enter the part or list number of the carburetor into ... How do you adjust the carburetor on a Honda Elite 80 scooter? In order to adjust the carburetor on a Honda Elite 80, the jet and idle screws need to be precisely turned until the engine runs correctly. The jet and idl... What is the way to test a 12-volt ignition coil? In order to test the spark, pull the spark plug from the engine, and then start the car. There should be a bright blue spark between the electrodes every t... What makes Robbins convertible tops top-notch? How do you polish a car? What is the best cleaning solution for car windows? What are some possible causes of problems with a headlight switch? What are some types of car emblems?

What information is on a Chevrolet Serpentine belt diagram? Have you or someone you know well been affected in the recent years about the rising costs of an EpiPen? What do you think will be the long-term effects of the new U.S. military aid deal with Israel? Do you think North Korea's latest statement about nuclear power testing is legitimate? How do you teach children who weren't alive for 9/11/2001 the importance of the changes of these attacks? What is your opinion of the purchase of Yahoo for $4.8 Billion by Verizon?4) Accelerator pump weak or not spraying. Check that fuel sprays from the accelerator pump nozzle when rolling on the throttle (can test with engine off). The accelerator pump diaphragm will wear or crack over time or if left to sit in a fuel filled carburetor for extended periods may start to deteriorate. 5) Pinched or cracked slide diaphragm. If the slide diaphragm becomes pinched or is unable to seal, the slide will not function correctly.

Slide diaphragms for the Harley CV slide are not sold separately, so the only fix is to replace the slide. 6) Over-drilled slide port. On the underside of the slide there is an offset hole used to displace vacuum/air as the slide moves up and down. The size of this hole can adversely effect the position and rate of travel of the slide. For several years many articles and companies promoted the practice of drilling the slide using a 1/8" drill bit. This was later found to harm performance and cause erratic behavior as the slide attempted to bounce and search for correct positioning. Unfortunately those articles wit the 1/8" recommendations are still widely published or found online and unsuspecting Harley owners perform that modification. The maximum recommended hole size for the slide port should never exceed 7/64". Use a 1/8 drill bit as a gauge to check the vacuum port hole size. If your slide has already been drilled larger then complete replacement of the slide is the only remedy. While not often associated with a carburetor problem, an exhaust leak is often overlooked and can lead to off-idle hesitation and deceleration pops.

The gaskets between the head pipes and the exhaust ports of the heads is a crush fit that will leak if the pipes are removed, reinstalled, or over/under torqued. Cool air drawn into the exhaust at these seals will hesitation and pops commonly misdiagnosed as a carburetor problem. Modified pipes and removing the baffles will also impact performance regardless of how a carburetor is tuned. 8) Gas cap venting. Another problem that will cause intermittent issues with fuel delivery is a gas cap with a malfunctioning vent. The built in vent inside the gas cap allows air to be drawn into the tank to displace the fuel as it is used. If the vent sticks closed a vacuum will build inside the tank thus slowing fuel delivery and sometimes starving the carburetor. Replace the gas cap as needed. 9) Worn float fuel valve. The float valve constantly meters the fuel level in the float bowl. If the rubber valve tip becomes worn the carburetor is prone to flooding. Also if the valve sticks due to a build up of lacquered fuel you may experience erratic fuel delivery.

10) Finally do not underestimate the importance of fresh clean fuel and a fresh set of spark plugs. Gasoline that is old or left to sit in the tank or fuel system will change over time, often becoming lacquer and clogging small passages. Old fuel also burns differently as it separates and evaporates which leaves an incorrect balance of fuel additives which the combustion process cannot burn as efficiently. Never attempt to tune an engine with fuel that has sat for more than 3 months. Refer to #3 if fuel has been allowed to sit in a carburetor for extended periods of time. Spark plugs even when cleaned can have internal cracks or fractures in the electrode that increase resistance and lead to weak spark. Make sure the mixture screw tuning has already been dialed in properly before and after any jetting changes. NOTE: CVP does not provide repair advice. The topics on this page are meant as a guide only and are not a substitute for the advice from a qualified repair technician. CV Performance is not a service or repair shop.

We are unable to provide technical assistance or troubleshoot repair conditions including ignition, electrical, engine issues, or provide advice on installing products under non standard applications (Shovelheads, non-Harleys, etc). In addition we are unable to provide advice or assistance on any motorcycle that was previously not running properly. Any performance or replacement product is only designed to improve or restore the performance of a Harley motorcycle that is already in good running condition. If in doubt always consult the factory service manual and a qualified motorcycle technician. CV Performance as a manufacturer and supplier is unable to provide telephone technical support. Following the above Tuning and Troubleshooting tips are meant as a guide only to assist with some common issues. Please visit our support forum for post-purchase support of our products. When in doubt consult your factory service manual and/or a professional motorcycle technician. Harley CV Carburetor reference diagram