Trouble Starting 2002 GTX DI

[DanL15]

I am still having trouble getting my 2002 gtx di running and didn't have it going at all this season but had a little time so decided to jump back into it. I know there are a bunch of threads on gtx di starting issues but I couldn't seem to find quite what I am looking for

Backgroud:

Battery is brand new and fully charged

I had it out on the water after a fresh top end rebuild and it was running great. I shut it down in the middle of the lake just to check everything out and could not get it to turn back on. Someone suggested a new fuel pump so I put one in.

This seemed to help a little but I must have gotten some water in the cylinders while testing it on the hose. I took the cylinder head off and removed all water. put the cylinder head back on and still no start. just turns and turns.

If I put a little fuel directly in the cylinders it will run for a second til it burns that off.

I wanted to check the reed valves as I read somewhere water in the cylinders can damage them. I removed the boots but can't seem to get the reed valves to come out does anyone have any tips for this? Also, could this be a possible cause to a no start

I tested compression and though it isn't perfect it is 120 in each cylinder which I assume would be enough to start.

When I put the key in I get the two beeps and can hear the pump priming. The cylinders then smell like fuel so I assume it is getting it. I did an ohm text across the terminals of each of the fuel injectors and got 1.7 for both. Is this normal? Also is there a way to test if fuel is coming out of the injectors by unbolting the rail and seeing if fuel shoots out the injectors? (with wires grounded of course)

Also, is there an easy way to test the air compressor? I can't seem to find much info on that.

I apologize for the long post but I am fairly new to seadoos and hopefully any and all info provided will help me and others in the future.

Thanks in advance

 

[AdamXP800]

[MENTION=27645]lamajama[/MENTION]
Pretty sure he owns one and knows a great deal about them



96 XP800!
Keep the 2 strokes alive!

 

[PGHMAN]

Not familiar with a the mechanics of a DI but assume it has some of the sensors, etc that a RFI has. The only test for a RFI injector test is to pull the rail for a leak test. Hang-in there I sure some DI owners will chime-in.
Where do you ride? Jordan? There's a few other locals that ride at the north end of Jordan off Farrington Rd.

 

[DanL15]

Hey PGHMAN yeah I ride at Jordan when I'm lucky enough to have it running haha. I'll have to pm you at some point.

Going through all this can be really annoying but at the same time I am getting much more familiar with the ski which is never a bad thing. Hopefully I will get some info from those who are much wiser than I and have it up and going soon

 

[DanL15]

Also wanted to add that I am getting a strong spark and the maintenance light is not on

 

[Minnetonka4me]

You can pull the top of the compressor off and check for rust. Its just a piston with some rubber valves in there...if water got in that might be an issue.

The fuel pump...you bought a brand new one?

The reed valves...you should be able you stick a little screwdriver in the corner and get it to pop.

 

[DanL15]

Yes the fuel pump is brand new and it is a good one. Not the cheapie ones on ebay

I will give that a shot to get the reed valves out and see what they look like. Thanks

 

[Minnetonka4me]

The fact you had some water in the motor means some could have got into the compressor and rusted. luckily you can take it all apart and replace it without disassembling the motor.

 

[DanL15]

I pulled the the reed valves out and they actually looked pretty good (thanks for your advice on this minnetonka). The front cylinder valve clearly had some water mixed in with the oil and the rear cylinder i could see a small gap but it was very small.

I took the top off the compressor and it looked good. The piston also moved freely when I turned the engine over.

At this point I am thinking it has to be related to the fuel since it does run for a second if I put fuel directly in the cylinder. Probably need to do a pressure test but the pump is brand new so hopefully that isn't the cause.

Is there a way to remove the fuel rail and just see if it shoots fuel out the injectors? Also, is 1.7 ohms across the fuel injector terminals normal?

 

[Coastiejoe]

The DI ski is CRUCIAL when it comes to the fuel pressure. Unless you get a gauge and test the pressure, there is no way to really know what the pump is doing. I know you say it is new. But you really need to do the test to eliminate it as an issue.