Re: missing at top speed
I have a '88 Force 125HP on a 19.5' Bayliner Capri. <br /><br />When it happens again, try squeezing the priming bulb while in full throttle, if this helps its a fuel related problem.<br /><br />If you still have the original fuel pump diaphragm on your motor, it's probably a good time to replace it.<br /><br />Mine recently started to hesitating and cutting out at WOT. I cleaned the carb's with Sea Foam Deep Creep spray ($4.99), pulled the plugs and sprayed liberally into each cylinder and let it sit over night. Started the next morning and ran it until it stopped smoking like h..l. <br /><br />Then disconnected the battery and replaced the fuel pump Diaphragm and Gasket ($4.70), which took about five minutes. The original Diaphragm had stretched out and was not delivering the fuel at higher RPM's. Runs Great again and it was Very simple.<br /><br />The Diaphragm is inside the Fuel Pump which is located behind the fuel filter.<br /><br />I idle at 800 to 1000 RPM's, and get 5000 RPM's WOT. Runs about 41 to 42 MPH with a 17 pitch prop, a 1/2 tank of gas and just me in the boat.<br /><br />Get yourself a Manual and a Teleflex Tach(20pole) it's relatively inexpensive and easy to install. a Tach is a must if you want to do it right.<br /><br />Regards, KC
