2007 RXP starting problems

[Tflemingrn]

First I just like to say thanks for the add. I've had jet skis in the past (97-98) but I just came across an awesome deal on a 2007 RXP. The ski is in awesome condition, not a scratch on it. The previous owner had the supercharger rebuilt a little over 2 years ago and put it in storage for the last 2 years. I currently have the ski at my house but I can get the ski to start. I've put a new battery and selinoid in it as soon a I brought it home. The motor is turning over but I can't get it to start. I've checked everything I can to my abilities but just can't seem to get it to start. I've changed the plugs and do have spark. I've pumped all the gas out of the tank and replaced it with 91 octane and still nothing. I've pulled the fuel rail to check and checked the fuel pressure which it does have on all three injectors. I am complete lost as to why it still won't start. I'm not showing any lights or codes on the dash. I've even placed a pumper box on the battery to make sure I'm getting enough voltage. I was concerned that maybe the starter because it's only showing 200-240 rpms on the gauge when I attempt to start it. The inside of the ski is very clean and doesn't appear to have been submerged or abused in any way. I just don't know what to look for now without taking it to the shop and run into a huge bill. Any help or advice would be greatly appreciated. Also I haven't purchased this unit yet. The previous owner was nice enough to let me do some troubleshooting before I purchase it. Thanks.

 

[3ftDeep]

Our video might help ...
https://youtu.be/IAGQA3LGdzE

 

[Coastiejoe]

Take a compression test. If the compression is good and you know you have spark, then you need to see what the actual fuel pump pressure is. If it is weak it will not be able to overcome the compression of the engine.


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[pipedragon]

Sounds like spark plugs or battery. Check to make sure the terminals at the battery are super clean. Use some sand paper to clean them up. Then replace or clean and regap the spark plugs. Most likely the spark plugs are all gummed up.

 

[Tflemingrn]

Fuel pressure

Our video might help ...
https://youtu.be/IAGQA3LGdzE

When I pull my fuel rail off I definitely don't have the pressure like the one in the video. Should I pull my injectors and clean them with something? I can hear my fuel pump kick on and off. Or would it be best to just replace the rail and injectors. I don't have a fuel pressure gauge to test the pressure coming into the fuel rail.

 

[Tflemingrn]

I already tried two different kinds of plugs, NGK and Champion. Still nothing.

 

[Tflemingrn]

I dropped a brand new battery in it a few days ago.

 

[Coastiejoe]

If all of your injectors act the same, I doubt they are bad. You need to do a fuel pressure test to see where you are.

Injectors have to have substantial pressure as they must overcome compression and still be able to mist the fuel.


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[Tflemingrn]

I just ordered a fuel pressure and compression tester. Hopefully this will give me the info that I need as to whether or not I'm gonna purchase the ski.

 

[Coastiejoe]

At the very least it will provide information that is critical to determine a direction..


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[Tflemingrn]

Just did a fuel pressure test. I'm getting 57-58 to the fuel rail. How do I know if I'm getting enough fuel to the injectors? Is there a proper way to clean them? Should have the tools to do the compression test on Monday. Any suggestions?

 

[3ftDeep]

If you can get each injector to spray individually, you will be able to see if you've got enough pressure going to the injectors. You can see the difference in the video in the link I sent you. If you can split the cost of a CanDoo Pro with a buddy, it's worth the $200 each so you can easily troubleshoot these things. Good luck!