Just got my first machine it's 1992 seadoo 580 xp i noticed that the external fuel filter went MT so i managed to get the fuel into the filter (By Siphoning it in ) and i have to put a drop or two into the cylinders to get it to fire then the fuel will not stay in the Filter.And i know that this question has bin asked a 1000 times but i looked in the older threads and did not see ,does the carb just suck it or is there a pump ? Any help would be great Thanks This machine was winterized at the end of the last year is ok just to fire or is there a de winterize method as well
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No Fuel Please Help
- Thread starter Fidoeh
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Dr Honda
Well-Known Member
You should have a SBN carb. (with a square body) That square section has a fuel pump built into it. So... the carb will suck the fuel up to it... then it pressurizes the internals of the carb, and then there is a return line for the extra fuel. The fuel shouldn't drain back when the engine shuts off... but the filter may not stay completely full.
I guess I have a couple questions for you.
1) Is this just an observation, or is the engine not pulling fuel?
2) when you primed the engine with fuel... will it stay running, or is it burning that fuel, and dieing?
I guess I have a couple questions for you.
1) Is this just an observation, or is the engine not pulling fuel?
2) when you primed the engine with fuel... will it stay running, or is it burning that fuel, and dieing?
Its likely that the pickup inside the tank has rotted off lines.
Sounds like the carb is pulling in air at the fuel water separator. That has a square 0-ring and a removeable inspection cup that screws on. It could be loose or cross-threaded, as that cup should be checked for any water or contaminates. the fuel selector switch is beteen that and the fuel bafel, and any of these fuel lines could be loose and leaking air into the suction supply of the carburetor. The carb fuel pump is on the magnito side (front) , sucks fuel in then pushes it thru both carbs, out and thru the return line and dumps it into the fuel bafel and gets
re-circulated. If the carbs were to have any moisture or crud in them the pump would not drink, or route the fuel in circulatory system (more than one item is a "system").
re-circulated. If the carbs were to have any moisture or crud in them the pump would not drink, or route the fuel in circulatory system (more than one item is a "system").
After burning the fuel i put into the pistons no it will not stay running just dies out and i think that there is a filter under the dash by the pet cock but for some reason it was not connected thats how i got it so the fuel filter that i am talking about is just a inline one in front of motor forgot to say that after it does fire then die the fuel that was in the filter will disapear and never fill up again .But tonight i did remove the fuel tank and everything looks well as far as the pick ups i really didn't see anything wrong but what to actually look for i'm not sure .and i did blow into the fuel lines and when in the On i here pissing back out the return so does the mean its going right threw the carb and back same when in Res hope i explained it to make some sense
Item #24: http://partsfinder.onlinemicrofiche.com/seadooforums/Seadoo_oem/Seadoo_PWC.asp?Type=13&A=7&B=12
Replace if rotted
1/4" id fuel line (6mm)
Replace if rotted
1/4" id fuel line (6mm)
Hey Dr Honda that is where i was trying to suck the fuel just on the other side of the filter before the Carb and its not the best i did take out the Pickup i guess that is where all the hose go into the Tank Res Vent On and i look at the diagram that Bill posted for me and alls i have is just the tube that goes into the tank and a big round screen on the bottom but as far a seperate hoses in the tube i think it is just molded like that with really no tubes to replace i will try to get a photo to post on here for Ya Thanks.
TFWildman112
New Member
get rid of the grey lines clean the fuel pick up, pet cock, filter, and the carbs. the carbs should be a fuel pump/carb all together. don't worry about the fuse part but this is your set up you can see if your hoses aren't in the right places going to the right things. kind of tough but it may help if they're mixed up. http://www.seadooforum.com/showthread.php?t=5826
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I no longer have the grey lines and as for the fuel pick up i don't have what i think is a fuel gauge like yours with the wire mine is separate and for the pet cock i see no unscrew-able filter on it ,it just has a very tiny screw that is all rusty and i can't get out on the underside by the line hook up and what i had thought to be a fuel filter under the dash turned out to be the Water separator and that is not hooked up someone has bypassed that.
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TFWildman112
New Member
ya it shouldn't have the filter or the wires for the gas gauge but the rest is the same right? blow out the pet cock with some carb cleaner with the lil tube extender and make sure when you clean the carbs you take the jets out and poke all the holes with a wire so they are clean.
Now that the water separator is not hooked up does that play any role? And inside the pickup it's just 2 molded tubes that run down one being short for on and the other longer for Res right.So there really is nothing that could be wrong there except for the nipples where lines connect .
TFWildman112
New Member
right long res and short on but the is a vacuum line on there that goes to the pet cock and one that's a return from the carbs that's why i sent the link so you can make sure they're not mixed up.
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Yes i think when i took out the pickup the lines were from clockwise it went far left side Vent,Res,Return and then on left side of machine while your on it and to clean the jets do the carbs have to come off or are they accessible ? Ok just check the pet cock and there are only 3 inlets for lines i see on the side Res and out i assume the other is on and the the res is going to the pickup and the out is going to the carbs and if the other is on it is going to the pickup as well .
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TFWildman112
New Member
this sounds like it will be your problem the jets you have pull the carb off and take it apart and inside will be 2 brass screws with holes in them you take them out and there are holes on the sides you have to clean out they're probably full of junk. there is a main jet and pilot jet. something like this in the area http://www.siue.edu/~rsutton/SR/carbbot1.jpg (not your carb but it will give you a idea and they will look like this http://www.jacksscootershop.com/images/Yamaha_125/carb_jets.jpg also if you have gone this far you should do the fuel pump which i think is on the carb just get a rebuild kit for the carb and fuel pump. not sure if it's one kit or not.
TFWildman112
New Member
ya your gonna want to clean a the holes in that picture in the link thats pointed out
Well did some more snooping around and noticed that as i took the fuel line off at the Carb the Brass Elbow did move a bit now i'm not sure if it should move or just be right tight in there and if so is this the point where i could be sucking Air.And what kinda fix would need to be done to make it be firm with no play.
I was having the same issue and just fixed it today. The pickup line inside the tank was cracked at the top near the clamp. So it would suck air from the top of the tank instead of gas. The reserve line was completely broke in half.
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