How to Install a Big Bore Kit on a Yamaha C3, Zuma 50F and Vino 50 4T - Full Length Video

In this video, we will show you step by step how to install a big bore kit or rebuild the top end of the engine on your Yamaha C3, Zuma 50F, or Vino. This is the water cooled, 3 valve head, 49cc, 4 stroke engine. We are experts on the is motor! Learn what has taken us years to learn in around a hour. We will share with you all the tips and tricks to make this job a breeze, while saving you hundreds! This is a step by step video. No general ideas here like you find in a service manual. If you have purchased a big bore kit for your Yamaha and don’t know exactly how to install it, this is a huge headache saver. All you need is a basic metric tool kit.

This video will cover:

- motor removal 

- disassembly

- piston ring install

- piston install

- piston pin install

- circlip install

- cylinder install

- cylinder head install

- cam install

- timing

- valve clearance  

- coolant flush