it's not a "true" velocity stack. it's still basically an air filter. haven't noticed a need to mess with the carb at all.
i didn't think about making a "how to" because it's so simple i didn't take pictures, but all i did to make it was... uh...
think of it like a metal shot glass. i just cut off the bottom, but left some metal on the sides, so i could bend the tabs over and drill holes to mount it.
then i took my old air filter apart, and used the plastic mounting ring and the sponge. i had to shave the ring down to match it up, you can see the black plastic in between the carb and the "stack."
i made another plastic ring out of some, well, plastic, and used that on the inside.
there's two small spacers inside that the sponge sits in, so it's not all compressed.
so you've got the carb, then the plastic ring, then the stack, the sponge and spacers, and the other plastic ring all sandwiched together.
the candle holder already had the cool flared out wings, which make it look like it was designed to wrap around the seat tube.
only problem i can forsee is if i park the bike next to some sprinklers, the sponge will fill up with water.
don't plan on riding in the rain much, and i've got a fender for puddles, so it should be fine.
it's mostly cosmetic. any performance gains by it breathing better than stock will probably be immeasurable. if i notice anything, i'll update this.
i'll probably add a piece of screen in there, and maybe re-do the element, but for now, it was just a lazy saturday project...
