DI Seadoo Fuel Pump

[renegade72]

So I tried the Highflow pump that I purchased on ebay and followed Doowacka's awesome guide. Very clean and easy installation. This was on a 2002 Seadoo LRV DI. The unit started right up and ran flawless for about 2 hrs. Put the unit on the lift and came out to run it the following day and it would not start. I pulled the fuel line at the fuel rail and had gas flowing when you plugged in the tether. However when I held my thumb over the hose, I could hardly feel any pressure build. Obviously not the 100+ psi. I thought maybe one of my clamps was allowing the fuel to leak but they both were securely holding still. I did notice that initially the fuel pump would come on at a fast RPM until it would shut down when plugging in the tether. When it wouldnt start, it would come on fast and then slow down like the pump was struggling. I checked the filters on the end and everything looked good. It was worth the effort to try to save a few hundred but think I am going to suck it up and pay the $700 for the OEM. Just wanted to give "my experience" on the thread. Not trying to discourage anyone from trying it, I just think I received a bad pump.

 

[DooWacka]

If you bought a HighFlow pump, you have a lifetime warranty. So, if you just happened to get a bad pump, you should return it for a new one. I have heard on this forum, that after a second pump was bad for someone, they just refunded his money. I think you should try again.

When you put the key on the post, the pump runs briefly to charge the rail to 27 psi only. Then when you try to start, the compressor is activated to bring the air pressure up, then combining with the fuel pump, the fuel rail gets to the 107 psi required. From your description, it does sound like the pump is bad.

Thanks for taking the time and sharing your experience. That's a benefit to everyone, and how we all learn and build statistics.

 

[renegade72]

Thanks for the info doowacka. I thought that the pump actually built the 100+psi as well. That being said, it was well below the 27 psi judging from my trusty thumb gauge.. lol. Summer just finally showed up in the last couple days here in Northern Indiana and my family is antsy to start playing so I am just going the easier route and going with the OEM. I have another DI that I suspect has a fuel pump issue starting so I am sure when I am less "pressured" I will try the high flow pump again. BTW Highflow was very good to work with and just gave me a credit for the pump. I think the solution for a dependable, cheaper pump is here in this thread and would encourage anyone else to give it a go, Im just out of time to experiment right now..

 

[roundtopjeff]

My brother in law and I installed a high flow in a 03 XPDI as per DooWacka instructions (thanks for that BTW). and it ran great......for about an hour. He got his money back and bought OEM. Honestly I think until they come up with a bullet proof replacement pump do not bother with the High flow, use OEM. I know $800.00 hurts but so does being stranded in the deep by a cheap imitation. I'm sorry DooWacka

 

[waterdogd]

Ok, I know you've been through this before, as I have read, but here goes one mre time. @001 GTXDI, running great, high and low throttle. Suddenly it boggs and dies. I remove and replace the lanyard a couple of times, doo starts back up and runs 2-3 min, then boggs again. Fuel Pump. I replace with a High Flow and follow great instructions from the forum, and installation goes well. Put on landyard, beeps and try to start, turns over but does not fire. Ck plugs, good, pull hose off pump, lots of fuel coming out, but not start. Where do I go from here?BTW, I am a disabled Vet and only have minimal use of my hands. So this is a, when I can , project. Also reading Brother in- law post. Thanks waterdogd

 

[renegade72]

I would suspect you are still not building enough fuel pressure. Do you have a pressure gauge that you can put on it to test the pressure? When testing on a closed loop method and installing the lanyard, it should build 105 psi. On the open loop test, you should read 27 psi. I know on the aftermarket pump I tried it worked for a couple hours but then did exactly what you are saying. It could be from loose connections above the pump that you would have had to do as to why you are not building pressure Good luck!

 

[ski-d00]

Did you ever confirm that the fuel pump was the problem in the first place? It sounds to me like that was never your problem.

Start with the basics. What is your compression? Are you getting any spark? Does it turn over freely by hand with plugs out? How many hours on motor? Bad rectifiers can also do exactly what you are describing and fail more often than fuel pumps.

 

[waterdogd]

Ok, thanks for the replies. No, I really don't know if it was the pump. Read some posts that sounded like my experience, so bought a high Flow and installed it per more post here. I don't have any of these pressure gauges. New plugs, right gap. I guess a process of elimination is where to start. This will be a slow process for me, but I will keep posting. Thanks, and I am still reading as many of your other posts as I can adsorb. Lots of good information, just don't have all the proper tools.

 

[Crowe22485]

Hello first time posting on here having an electric fuel pump problem .....I think .....2002 Gtx DI disconnected the fuel pump wires (two red wires) Hooked multi meter to ground and to one wire in connector on supply side but am seeing only about 7 volts other lead 0 volts.
Dess is plugged in beeps but nothing from fuel pump. Engine cranks but will not start...shot of either gets it running but just for a moment.
All fuses good ....checked with multimeter
What voltage should I be seeing 12 volts on the plug ?
Where should I be looking for issues ..
Thanks in advance
V/R
Chris

 

[Coastiejoe]

Hello first time posting on here having an electric fuel pump problem .....I think .....2002 Gtx DI disconnected the fuel pump wires (two red wires) Hooked multi meter to ground and to one wire in connector on supply side but am seeing only about 7 volts other lead 0 volts.
Dess is plugged in beeps but nothing from fuel pump. Engine cranks but will not start...shot of either gets it running but just for a moment.
All fuses good ....checked with multimeter
What voltage should I be seeing 12 volts on the plug ?
Where should I be looking for issues ..
Thanks in advance
V/R
Chris

Ok,, first, you did great in doing a search and actually finding and posting to a correct post. But in this case, this is a pretty old post and I don't think you will get too many members looking at it. So, I will answer your question as best I can, but I do suggest that you create a new post as I believe it will be more beneficial for you.

One of the biggest issues with DI ski's is the fuel pressure. At idle, I think it need to be something like 97psi. An aftermarket cheap pump simply does not hold up even if you buy it new.

Though I do not know officially, I do think you should have 12 volts at the feed wire. I have not heard of any of the pump systems having a decreased voltage to feed the pump.

Welcome aboard and thanks for joining...

 

[Crowe22485]

Thank you , I will cut and paste into a new post..
Vr
Chris

 

[Coastiejoe]

I am closing this thread due to age and multiple pages of replies.