Ruttly wrote on 11/29/16 at 20:21:46:Lancer , So what is the range of the hole sizes when drilling atomizer. Do you have a chart to post or any other info ? Would like to try it before I lower it. So l can compare results. Looking to improve off idle snap. Back to short intake and small foam filter. Thanks
Didn't you get the yellow UFO sheet with the product ?
On page 6 of the yellow sheet it suggests that if you are running too rich after reducing the pilot jet size by 1/2 from stock that you drill a hole through the needle jet "nozzle" using a #55 drill bit to start, and going larger only if needed. It says that you should not go larger than a #40 drill bit, however this was originally written for snowmobiles in the far north. It is much colder up there and I found that I needed to go slightly larger on the LS650 since I lived in SC and now in OK with a milder climate.
I do not remember the conversion for the drill sizes but I do have a little book in the shop with that info and will go out and get it later this morning.
It is 23* outside right now.