98 seadoo GTX vs GSX hose routing discrepancy. mistake in manual?

[projectspat]

Hello all, I'm new here. I have been totally rebuilding a 98 seadoo GTX LTD and I'm at the point where I'm going to be firing up my rebuilt engine. I know I can fire it up for a bit without the hoses in place but I have been having trouble figuring this out. I have seen incorrect information in shop manuals before and i think there is errors here. I have my hoses in question hightlighted. The yellow ones make sense on the GSX but not the GTX. in the GTX configuration if i were to connect a water hose i would be filling up the exhaust.... that cant be right can it?? Also on the orange highlighted ones on the GTX would route water into the exhaust can RAVE valve thingy. is that correct?? Thanks for any help! its one of my last steps besides painting my hull. If you have any interest on following my built i have it on my youtube channel. projectspat.com will redirect to it. Thanks!!!

 

[CreekerMike]

The diagram is correct. The two hoses highlighted in orange run to the water regulator. This valve controls the amount of water injected into the water box based on a given rpm and water pressure. As for the yellow hoses Yes, the manual is correct. These hoses supply water into the water jacket of the tune pipe. Aiding in cooling and efficiency.

 

[racerxxx]

Technically the GSX you posted is wrong (GSX model 5625). You don't run water from the WCV back to the WCV as they have it shown. But............if you go to the factory microfiche they have another explosion drawing for 98 GSX Model 5629/5845. Always refer to the ski you're working on and the model number, meaning if you're working on a GTX don't pay attention to the GSX as things COULD vary from model to model. The other big thing.......mark you're lines on what they go to and where they come from. And with phones these days, pics, pics, pics. you can never go wrong. But if you follow the GTX you'll be good to go.


http://epc.brp.com/Index.aspx?lang=E&s1=de24af78-1a4c-4572-8cf8-f18277830975

 

[projectspat]

Thank you for the clarification. I bought the ski as a projects and basically gutted it. i should have taken pictures but how it was looking there were all sorts of stuff wrong in there. they had big fuel lines clamped on small fuel lines, the wrong petcock, etc. As far as cooling the engine while out of the water with the hose connection. When it pumps water into the exhaust pipe how can that cool the block?

Thanks!

 

[Ckrawiec]

Thank you for the clarification. I bought the ski as a projects and basically gutted it. i should have taken pictures but how it was looking there were all sorts of stuff wrong in there. they had big fuel lines clamped on small fuel lines, the wrong petcock, etc. As far as cooling the engine while out of the water with the hose connection. When it pumps water into the exhaust pipe how can that cool the block?

Thanks!

When you are running on the hose, you are backflushing the entire cooling system (muffler, block, head, etc....), just DON'T run on the hose TOO LONG, couple minutes MAX. When running on the hose, also make sure you're getting a good stream from the tell tale (pisser out the back or side - depending on where yours is routed to).
Hose water provides NO cooling to the driveline components (carbon seal, etc), so you run the risk of burning seals, etc.....by running on the hose for too long.

So, backflushing procedure...engine on first, water on, do your work/testing, water off, engine off....in that order....DO NOT run the water if the engine is not running.

 

[projectspat]

makes sense. thanks a ton!