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2001 seadoo gtx di
- Thread starter aaronm
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2001 Seadoo GTX DI Bogging!!!
Ok, I have had a full engine rebuild due to the following problems,
At low rpm to start with ski misfires and don't wanna go, once I get to about 4000rpm the ski cruises any more throttle ski just Boggs down if I release throttle ski will cruise at 4000rpm I could only get it to go around 4000rpm.
Since the rebuild I have the same problem now.
Cleaned fuel lines and tank
Cleaned oil lines and tank
Cleaned fuel rail
Checked rave solinoid
Checked battery charging
Cleaned rave valves
Replaced sparks (have noticed they went black after a few minutes running)
Checked the resistance of ignition coils
I have no maint lights, or alarms, lanyard on gives to short beeps, fuel pump starts.
I am in a remote locality and can't access candoo pro, am looking at this but just spent $$$ on rebuild. And was told by a seadoo shop that this may not show any errors, so it's a risk taking it so far!!!!
I have had ski go once or twice but after about 5 minutes after releasing throttle or switching engine off problem returns.
Please help I am new at this!!!!
Ok, I have had a full engine rebuild due to the following problems,
At low rpm to start with ski misfires and don't wanna go, once I get to about 4000rpm the ski cruises any more throttle ski just Boggs down if I release throttle ski will cruise at 4000rpm I could only get it to go around 4000rpm.
Since the rebuild I have the same problem now.
Cleaned fuel lines and tank
Cleaned oil lines and tank
Cleaned fuel rail
Checked rave solinoid
Checked battery charging
Cleaned rave valves
Replaced sparks (have noticed they went black after a few minutes running)
Checked the resistance of ignition coils
I have no maint lights, or alarms, lanyard on gives to short beeps, fuel pump starts.
I am in a remote locality and can't access candoo pro, am looking at this but just spent $$$ on rebuild. And was told by a seadoo shop that this may not show any errors, so it's a risk taking it so far!!!!
I have had ski go once or twice but after about 5 minutes after releasing throttle or switching engine off problem returns.
Please help I am new at this!!!!
Hey. I'll chime in with my best guess as I've had some similar issues with my 01 DI over the last few summers. I would have a look at the air injectors. I don't see them in your list of replaced parts. Easy to change, just expensive. You can easily do it yourself. Should be able to find lots of info on them if you search around. I'm sure the pros will offer some suggestions for you too. Good luck. I know the DI's can be frustrating when they throw a tantrum.
I'm merging this thread with another thread. It's O.K. to ask more than one question in a thread. It's very confusing to the guys that are trying to help you to have to answer the same questions in multiple threads.
Currently you have seven threads going, all basically on the same subject.
Lou
Currently you have seven threads going, all basically on the same subject.
Lou
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Ok cool I'm just learning how this works I found out I can just reply not post new thread I tried to delete all previous threads but it would not let me, I checked the air injectors by applying 12vdc they both opened. Also I checked the coils I had .006ohms between to pins this appears to be good, I took it out today and found it initially skipped a bit but then took off only running about 5500rpm then all of a sudden dropped right off and would not go again
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Thank you all for being patient with me, I haven't checked fuel under load only on trailer with water!
I have noticed that after riding I remove rave valve housing and notice there is like water bubbles on valve not sure if this is normal
And battery test I start with 12vdc start ski the more I rev the higher the vdc go up I'm talking 4000rpm gives me about 16vdc
I have noticed that after riding I remove rave valve housing and notice there is like water bubbles on valve not sure if this is normal
And battery test I start with 12vdc start ski the more I rev the higher the vdc go up I'm talking 4000rpm gives me about 16vdc
I don't know much about direct injection engines but I do know that 16vdc charging voltage at 4000rpm it too high. I suspect you have a bad voltage regulator. Measure across the battery with the ski running and see if there's any AC voltage, if there is you have a bad voltage regulator.
Lou
Lou
So hears an update, checked voltage reg didn't get any AC voltage, replace spark plugs again, took ski to dam it took a few circles to get going then took off and ran for about 500 meters them bogged down again so it seems to be if I let it sit overnight then it will go not to sure where to go from here
also thought I better check the fuel pressure again as i put fuel filter back on if I can blow through fuel filter does that mean its ok??? And where is best place to put fuel pressure gauge on to test
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Hey mate.
Sounds like the same symptoms I had with my xpdi. Mine turned out to be my fuel pump. Bogging out round 4000rpm. I found it hard to actually narrow it down to the fuel pump as the engine worked perfectly and fuel pressure was on specs on the trailer. As SMC mentioned, you have to tee in the fuel pressure gauge and observe fuel pressure when the ski bogs down on the water. i hooked it up before the filter.
You can also confirm if it is a fuel issue by disconnecting the fuel return line at the fuel tank and observing the amount of fuel returning to the tank from the fuel rail whilst riding. When the ski bogs out, if there is little or no fuel returning back to the tank, and fuel pressure drops you know its ya fuel pump.
There are checks in the Manual to test the air compressor output and the fuel pressure regulator too. You should get 27 +- 2 psi upon connecting the lanyard to test the fuel pressure regulator.
There are many threads on the DI fuel pumps on this forum. They helped me a lot with my machine. This thread is a good one http://www.seadooforum.com/showthread.php?46680-DI-Seadoo-Fuel-Pump&highlight=di+fuel+pump
Good luck.
Sounds like the same symptoms I had with my xpdi. Mine turned out to be my fuel pump. Bogging out round 4000rpm. I found it hard to actually narrow it down to the fuel pump as the engine worked perfectly and fuel pressure was on specs on the trailer. As SMC mentioned, you have to tee in the fuel pressure gauge and observe fuel pressure when the ski bogs down on the water. i hooked it up before the filter.
You can also confirm if it is a fuel issue by disconnecting the fuel return line at the fuel tank and observing the amount of fuel returning to the tank from the fuel rail whilst riding. When the ski bogs out, if there is little or no fuel returning back to the tank, and fuel pressure drops you know its ya fuel pump.
There are checks in the Manual to test the air compressor output and the fuel pressure regulator too. You should get 27 +- 2 psi upon connecting the lanyard to test the fuel pressure regulator.
There are many threads on the DI fuel pumps on this forum. They helped me a lot with my machine. This thread is a good one http://www.seadooforum.com/showthread.php?46680-DI-Seadoo-Fuel-Pump&highlight=di+fuel+pump
Good luck.
Thanks for the advise I'm going to give these test a crack!! Watch this space for results
Ok so fitted fuel pressure gauge and with lanyard on pressure was 25psi
When I started ski pressure went up to about 60psi but it was very unsteady (jumping around)
If I held throttle steady it stay even but any more throttle it just came back down
I'm guessing fuel pump!!!!
I think you have found your issue,,,
Start saving for one. OEM pump from Seadoo here in Aus is round the $1100 mark! Unless of course you give an aftermarket pump a go. I couldn't get an aftermarket pump to work for me. If you decide to get the OEM one, do some shopping around. Ring every Seadoo dealer in Australia as the price does differ a few hundred bucks.
Let us know how you go.
Let us know how you go.
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