seadoo 2001 gtx DI

[fil1138]

I all,

Im having issues with my seadoo gtx di, the problem it will start first time but a soon as i even touch the throttle it cuts straight out,

i have put brand new plugs in, no change,
i have removed the rave valves and cleaned them, no change,
I have removed the air compressor and cleaned that, no change,
but on the air compressor there is an hose outlet pipe plus a small black pipe coming from it, if i removed the little black pipe at the air compressor ( which goes to the solenoid then the Rave rave valves ) yes air comes out of that and the engine will then rev, maybe a little lumpy but will rev, but with it all connected back up i then pull the pipes off the rave valves and no air comes from the pipes, ( after the solenoid )
i have also checked all the fuses to and all look ok,

the only thing i haven't took off is the fuel rail, but as it runs on tick over im thinking it not a fuel problem but maybe and air problem.

Am i correct in thinking that the solenoid is or could be the issue, and is the anyway of testing it or the power supply to it, or have i another issue and im looking it the wrong place Please Please Help, my kids are giving me ear acke as they carnt use it.

 

[ski-d00]

start with the basics, what's your compression? are both cylinders getting spark? test your rectifier? check fuel pressure?

 

[Coastiejoe]

Fuel pressure is CRITICAL with the DI ski. As mentioned above, check the base engine. If it is all good, then check the Fuel Pressure. At idle it is suppose to be 107 psi. If it is not, then you need to check the air pressure. I have to think one if these two are you issue. If you find you need a fuel pump, do NOT buy a cheap aftermarket, they simply do not hold up..

 

[ski-d00]

107 psi at idle fuel pressure. I see quite a few air injector failures which BUDS will catch easily especially on the first gen black ones which I think yours has.

The most common failure I see on the DI is the rectifier with the second being fuel pumps. That assumes you're using the proper oil and has had good overall maintenance. Even so, the DI motor has a limited life span and will generally have major engine issues before 250 hours.