If you have not watched part 1 watch it first right here:    • Vacuum Syncing Your Vintage Honda 4-C...  

It is easy to find yourself thrilled by the sound of your long awaiting first fire on your project motorcycle that you have spent so much time on. So thrilling, in fact, that many people jump right on and forget the final tuning that needs to happen. One of the most important jobs to do on your vintage Honda CB350F, CB400F, CB500K, CB550, CB750, and similar 4-cylinder Japanese motorcycles from the late '60s to late '70s is synchronizing your carburetors. Without syncing, you can often find your idle unstable or hanging, acceleration rough, and your engine knocking. Our 2 part series is to eliminate those issues and give you the ultimate walkthrough on how to get your carbs in perfect sync. When in sync you can expect a bike that has a stable idle, smooth acceleration, and starts right up even when cold. Be sure to watch Part 1 before viewing this video where we go in-depth into the why and when to vacuum sync as well as how to set up our CMC 4-cylinder Honda vacuum sync kit.

4-Cylinder Vacuum Sync Kit: https://www.common-motor.com/honda-55...