I have another question about the oil separator on the kfx 400. Say if the hose that connects to the valve cover from the oil separator was not connected could that cause the fuel shut-off valve to feed too much fuel to the carb? The reason i ask is a couple of months ago i had too change the main jet and after riding around for a few minutes i noticed a gas leak coming from the float bowl drain. So i pulled the carb the other day to check the float and float needle and they seemed to be fine. When i started to put the oil separator and carb back on i didn't remember disconnecting that hose to the valve cover. Anyway after hooking all the hoses and riding it for around a half an hour or so it was'nt leaking anymore.