due to the crazy weather here in n. ala. i've been riding in deep mud at times. for some reason, maybe the slow speeds thru the deep mud ponds my radiator area is the least place that i have to focus my cleaning. now, i do get a ton of mud and debris all at the pipe, exhaust port and skidplate. but also, where i ride there are several clear water streams to cross without even trying.
the cooling louvers are really lower then the rad, looking straight line they are in front of the exh port.