hi i am somewhat new to motorcycles although i do know a decent amount. so i have a honda c105t and when i got to start it air blows out of the carb, i took the air filter off just so i could spray starting fluid down the intake easier and when i kick it air blows out the top. I know one of my rocker arm springs is shot but shouldn't it still at least fire up the starting fluid? Could it be a spark issue? is it something to do with valves? i know nothing about valves or how to adjust or see if they need adjusting. i also know that my cylinder head gasket is pretty iffy and leaks oil so that could be an issue too? Do i not have enough compression? i was thinking maybe a top end rebuild?