Keihin CV and butterfly carburetor fuel inlet elbow

motorcycle, carb, harley davidson, cv, cv carb, idle mixture screw, idle, mixture, kawasaki vulcan, carburetor

The “Hi-Flow © fuel Inlet Elbow for Keihin CV and butterfly carburetors

This product (JCP-004) is designed to be used on the Keihin CVK40 (CV) and Keihin butterfly carburetors used on Harley Davidson motorcycles. The JCP-004 fuel inlet elbow has been successfully used on other Keihin CV carburetors such as the CVK used on Kawasaki’s. I cannot guarantee that it will work on other than the Harley Davidson CV and butterfly carburetors.

The following steps outline the procedure for installing the “Hi-Flow ©” fuel elbow. We suggest having the proper service manual and refer to it as needed.

1. Remove the carburetor from the motorcycle.

CAUTION! Ensure you turn the petcock off and properly drain the fuel from the carburetor! Failure to do so may result in a fire or damage to your vehicle. We highly recommend following the procedures in the service manual.

2. Using the service manual as a guide, completely disassemble the carburetor.

IMPORTANT! DO NOT SKIP THE NEXT STEP!

3. Note the position of the elbow and mark it on the carburetor body. This will allow proper positioning of the new elbow.

4. Break off the plastic portion of the original fuel inlet elbow. This will leave the brass portion projecting from the side of the carburetor.

5. Using a ¼-20 or ¼-28 tap, tap the remaining brass piece approximately ½” deep.

6. Remove the tap and insert a ¼” x 3-4” long piece of all thread. Into the now threaded hole. Do not go so deep as to damage the carburetor body.

7. Use a piece of tubing that is large enough to go around the outside of the opening to act as a spacer. Place a washer on top of the spacer and over the bolt. Thread a nut down onto the washer and gently tighten, pulling the brass piece out.

IMPORTANT! DO NOT SKIP THE NEXT STEP!

8. After removing the brass piece, wash the carburetor body with hot soapy water. Remove any debris or chips.

9. Mount the body in a vice with the inlet hole facing up.

10. Heat the carburetor inlet area. This will ease installation of the new elbow.

11. Position the elbow lining the elbow portion up with the mark you made previously.

12. Quickly insert the elbow into the carburetor body. You may need to gently tap it in to seat it. Do not distort the body!

After positioning and installing the new elbow, thoroughly clean the carburetor body.

13. Reassemble the carburetor following your service manual. Install new seals and gaskets as necessary. Check proper for proper float height.

14. Reinstall the carburetor and check for leaks before doing a test ride.

For assistance contact john@johnsmotorcycleproducts.com

Notice: This product was formerly owned by CCP by Direct Parts (www.directparts.com) all rights transferred to www.johnsmotorcycleparts.com I am not affiliated with Direct Parts.