Re: Raymarine ST40 speed slowing
Fresh water boat, just pull the wheel w/ the boat in the water and put in the blank plug when not sailing. It takes 10 seconds. And you'll never have to clean the wheel again.
There's growth on the wheel as you suspected, that's why it's running slow. You can use a dry lube, some people try vaseline and all kinds of other stuff. Just makes more sense to pull it when the boat is sitting.
Merit 25 # 764 "Audrey"