Hello everybody. I an in need of some possible pointers of a problem with my 400ex. The bike has been great, yesterday I changed the spark plug. I removed all plastics and moved fuel tank over but did not disconnect. Changes plug that was really burnt, reinstalled gas tank and noticed a rubber hose off carb didn’t see where it was conncected thought it might be a breather line? started quad before assembling the rest of plastics ran ok. Replaced all plastics and took for a short ride cam back an idle was super high, so I turned quad off and restarted adjusted left hand side screw thinking it was carb screw but not sure what it is for? but then turned idle screw on carb and quad shut off and would not fire like it was to lean popping out of exhaust then smelled alot of fuel like it was flooded? This morning tried starting but would only kinda run with choke all the way on but would only stay running with me giving it throttle then shut off. I have no idea what is going on? please help.