what is the stock size main jet for an 06 450r? how many sizes should i increase from stock if I were to add a full system exhaust and a filter?

 

185 main 52 pilot jet.....
This is if you have an air filter as well and remove the air box.

I am running a 190 main and its a little rich but I ride at sea level so who knows. its prob a little big, I also have a cam and ported head.

got with 180 at a min

 

ok, i did none of the modding on this thing, i bought it like it is. We took out the main jet like 2 days ago and it was a 162, the quad bogged pretty badly when it wasnt warmed up for a while. now I have a 172 in there and it still bogs pretty bad. When I first put the 172 in it bogged worse than the 162 but after it got really warmed up it did alright. Still not impressed.but what comes stock on this thing?