Just replaced the fuel pump with an "excepted" substitute for the original type(doesnt exactly look like the orig.)...well it worked great for about 10 outings then yesterday just coming down the river and my power went away. When not engaged you can rev it up and it will get louder. But when in fwd/engaged you can only go so fast and it will only get "so" loud no matter how far you turn the handle. Primer pump seems to be primed the entire time. Any help is greatly appreciated.