I am attempting to put a tiller kit on a 70hp 1985 Suzuki. The tiller kit was purchased used. I understand the cowling pan needs to be replaced and have that also. The kit is used and a mess of wires. Any help would be appriciated even if it is a littel guidence. What parts do I need after I pull the power head to put the new cawling on (gaskets or sealers and so on) or do I need to even pull the power head.