i have an old lark rude it has electric starter, i use a 12 volt battery, its 35 hp, on a 60's glaspar 14' fiberglass, i love classic. Do i need a special flusher, the one i have, the flush cups are round and they dont hook up right to impell water so i have to put the prop in a garbage can filled with water to flush out my motor. I believe its a 1958. It runs like a champ, and is cleaner than the engine on my 77' ford