Hi everyone,

I was wanting to see if there is anywhere I could purchase a grime gutter to attach on to the bottom of the 4th valve of a Yamaha Neo (similar to what Wilson make for their euphoniums)? I am thinking about ordering in a standard bottom valve cap (that is made for the 3 top valves) to replace my normal 4th valve bottom cap (just to add extra weight), however I am worried that excess oil will drip through. So is there anyone that may stock the 4th valve gutters that would fit on a Yamaha standard bottom valve cap?

Thanks