Speedster 2002 stop after 5 sec

[matlac]

Hi everybody, i just bought a 2002 speedster (240 hp). Like i'm working up north my brother is the first who tried the boat. The seller told him the boat was "new". When they went for the first ride of the season the motor starts perfect but stop after 5 sec. They start it again and same problem happen over and over. The mechanic who did the inspection last year told him that there was an uncommon noise coming out from the little pump (he talked like if there was two pump for the gas (by the way i don't know nothing about this motor). I'm coming back from north in two days so i would like to have this problem solve asap, so if anybody can help me that would be really appreciated.

Thanks in advance!

 

[rookie101]

There are actually three fuel pumps on your engine.

Here is a quick run down on how your fuel system is set up.

Low pressure electric fuel pump draws fuel from the tank. Fuel is pumped to the pulse fuel pump on the side of the engine. Fuel then goes through the spin on fuel/water separator filter. From there it enters the vapor separator through the needle valve which is controlled by a float just like an old carburetor. This is where the fuel is mixed with the oil. Inside the vapor separator is the high pressure electric fuel pump with a filter mounted to the bottom of it. This pump then sends fuel to the fuel rail and injectors with the pressure being controlled by a vacuum operated fuel pressure regulator. Any excess fuel pressure is bled off by the pressure regulator and returned to the vapor separator.


If it runs for a few seconds and then dies it could be a number of things. A bad fuel pump, plugged fuel/water separator, stuck needle valve, bad ignition switch................and the list goes on.

Have a look at it when you get home and give us a few more details as to what the problem is.

Aaron:cheers:

 

[matlac]

Thanks for the info about fuel system. My brother brought the boat to the dealer. They order a pump but i don't know wich one. It supposed to be ready by friday. i'll give you info this week-end or next week

 

[matlac]

Good news, they change the pump but the mecanic said that the old one was still good. The main problem was the sparkplugs:they were very dirty and full of carbon. 6 new plugs and now the boat is running perfect. Just wait for good weather now...