I have read that I must remove the shifts rod bolt under the bottom Carb in order to drop lower unit. I have romoved the bottom Carb by still can't identify that bolt. Will someone please deceive its size and location to me? Also is the shift rod plastic or copper colored? If anyone knows where I can find a diagram it would be great my manual doesn't have it and I need this off by Friday so no time to order OEM manual from kencook.com