I know it would be great if you could do this for $5, but I can tell you from many years of motorcycle racing that it aint gonna happen. Pingel's are the best, and thats why they are $$$. If your bike is hot enough that you aren't getting enough gas you don't really want a quick fix..
not trying to bust a bubble here just stating a fact..
here is what pingel says & also a good pic of the dual atv valve..
keep us posted on progress.
Finally a fuel valve for your MX bike that won't restrict the fuel flow to your carb. If you have any mods to your bike, you are restricting the performance with the stock fuel valve. Does your bike stumble in the fast whooped out sections? The cure is to install a high flow Pingel fuel valve. The weight of the fuel and the volume available through the Pingel Power-Flo