Re: prob with me bayliner
Just in general practice a can of starting fluid is a good diagnostic tool for a no start situation. Give your motor a 1/2 second shot of the old ether down the carb and crank it over. If it fires and runs for a second or two then you definantly have a lack of fuel issue. If it does not fire up for just a little bit it is a spark issue. This is for carbureted motors.
If you think its a fuel issue pull the fuel line going into the carb, crank the motor over and see if you have flow from the pump (please do this safely). You can get a cheap vacum guage/fuel pressure tester for about $20. If the pressure is good then something is hosed in the carb--float, crud in the jets etc. If you have no fuel flow from the pump then its the pump or the filter. Work backwards untill you find it.
If your motor is injected and it runs on the ether then you still have a spark issue. If the injected motor does not run for a sec or two things can be a little more complicated. The computer controlls the spark and the injectors and may not be triggering either.
If your motor is injected look on the fuel rail above the injectors and you will see a small black cap threaded onto a fitting at one end that looks just like the end of a valve stem on a tire. Remove that cap, turn the key to on, put some safety goggles on, keep your head far back and depress the center of that valve like you are letting air out of a tire. If there is fuel from the pump fuel will shoot as far as 2-3 feet out of that fitting (no smoking). If that's the case- and you do have spark -the injectors are not firing for some reason. See if you can get ahold of someone local with a computer scan tool. If you get no fuel at the rail then you have a pump or filter issue.
Make sure you got fuel in the tank----guages go bad all the time.
Don't forget and leave that can of starting fluid in the engine compartment by accident-- boat go boooooom!!!!