You can use a torch tip cleaner (tiny drill set) to open up your jet. A lot of people will do that to find the right number jet and then buy the correct one rather than trial and error. You can buy them at car-quest for about $12. The other concern that no one has mentioned here (and though I loath to speak the words). You are adding more fuel to the mixture but if you are running an oil injector it has no way of compensating for the increased fuel flow. You should consider adding some oil to your fuel or removing the mechanism altogether and tunning pre-mix.
If it idles fine I wouldn't bother messing with the idle jet as you are probably not at idle long enough to cause a problem nor are you asking a lot from the engine at idle.