Re: Johnson 175 fast strike 1996 model
Attach the speedo hose to the plastic fitting on the front top of the lower unit. It is just above the front knife edge of the lower. There is a hole drilled in the front of that knife edge which feeds water pressure up to that fitting. If you run your hand along the knife edge, you will feel it catch on the drilled hole. Often debris gets into the hole and plugs it up. An extrememly small drill bit, turned by your fingers will clean it out.