I'm not sure about vibration, but by bolting the motor to a metal box(read ufm) I reckon it to be the culprit for aplifying the noise levels most vins have.
And you should put some ears on the centralising plate, otherwise you might have a big problem.
That would have been your original cluster, now you are going to fit a five speed box. The ears on the centralising plate are there to stop any overrun, which you will definitely not want with the five speed, there`s not too much room for that.Thanks. I've shimmed out the kickstart ratchet.
There is a peg that holds the return spring that protrudes out the back of the ratchet. This is the bit that has scraped the alloy plate.
Trev, What do you mean by ears on the centralising plate?
The box was working well before I dismantled it.