Planet Minis

nama

I have a stock 50cc engine but wanted to add a new carb (and filter). I was thinking of getting a mikuni, but I'm not sure which one will work best on the stock 50cc engine. Can anyone help me with some advice?

Also, I recently purchased a used Yoshimura type 2 pipe, I have been told that if I upgrade the pipe then I need to get a hotter (than standard) spark plug. Can anyone confirm this?

Thanks in advance.

Phil