Mikuni Carburetor Research Paper

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How to Rebuild a Mikuni Carburetor

Whether you are looking to rebuild a Mikuni carburetor as a DIY project to save money by not going to a repair shop or you simply enjoy working on your motorcycle, you can make the process easier when following a few simple steps. Although it may seem difficult, you can have the carburetor rebuilt and running smooth in no time.

Rebuilding a Mikuni Carburetor

When you begin the process of rebuilding your carburetor, you will need to gather the necessary tools and supplies needed for completing the project. For optimum results, make sure that your work space is organized and free of excess debris and parts that are not needed for this task.

Tools

14 mm, 10 mm, and 8 mm wrench
#3 and #2 Phillips screwdrivers
Needle nose pliers
Nail
…show more content…
Remove the main jet with tight fitting screwdriver.
15. Insert the main jet back into the needle jet.
16. Push down with the handle of the screwdriver to remove the jet.
17. Using a small socket, support the float post that is located on the float pin.
18. Gently tap the drift to remove the pin and float needle.
19. Carefully, without crushing, remove the float seat.
20. Remove the pilot air jet.

Cleaning

1. Fill your dip bucket with the removed parts and let them soak.
2. Do not soak the floats, carburetor diaphragms, or any plastic parts.
3. Once clean, remove the parts from the dip.
4. Rinse and scrub the parts with hot water, an old toothbrush, and soap.
5. Let the parts dry completely.
6. Clean out all passages with the carburetor spray to make sure they are open.

Reassembly

1. Reassemble all parts in the order in which they were removed.
2. Make sure that you grease all O-rings before installation.
3. Pay attention to the notch in the needle jet.
4. Be sure to set the float height with calipers.
5. Using a tube, feed fuel into the carburetor until the float stops the flow.
6. Gang the bodies back together.
7. Install the gang plates and screws before installing the choke

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