My 1989 SP is not getting fuel to the filter bowl. My first guess is that the fuel pump is not working. Seems like there's no suction ... Reading some of the other threads seems like its probably the pump. Should the suction from the filter bowl to the tank be fairly strong when trying to start and should I be able to to suck gas thru that line (filter bowl to fuel tank) to isolate the problem ... Also if its the pump can I easily remove those 6 screws to see if it only needs cleaning
-
This site contains eBay affiliate links for which Sea-Doo Forum may be compensated.
1989 SP ...Fuel Issue
- Thread starter fish4bass
- Start date
- Status
RodInEscondido
Well-Known Member
First of all, welcome to the best SeaDoo forum; a lot of information on the site and a friendly and helpful group when you have questions.
Ya, I got 3 of these so am rather familiar.
Is this a new to you or have you had it for a while?
I highly recommend getting a brake bleeder, about $20 from Harbor Freight ... unless of course you do not mind the taste of gas by sucking on the fuel line. Hook it into the input line to the fuel pump to check the path from the tank to the primary filter/water separator thru the fuel selector (check reg/reserve/off). Watch for bubbles (air in the path is a regular problem due to bad seals).
Very common to these is that the little filter at the ends of the pickups inside the fuel tank fall off due to the lines inside the tank rotting off. Note also that these filters have a check ball in them to prevent backflow and I have seen them frozen both open and closed; shaking them around should tell you if the checkball is loose and working.
Old crud in the fuel tank can stop up the works. Fuel tank can be removed thru the forward hatch for cleaning.
If you have good flow to the input side of the fuel pump, first insure the pulse line to the fuel pump is good and secure so no leaks. Insure no source of sparks or flame anywhere around. Remove the line going to the input of the carb and put it into a bottle, crank it over several turns and you should get flow.
You can take the fuel pump apart; I do not recall seeing a diaphram kit for the external fuel pump, but I have not looked.
A lot of the experts recommend replacing the old round-body carb with the SBN square body that has the fuel pump included. Just insure you get one from a single-carb installation. If you decide to go this route, check back here and I can direct you to the expert's link for jetting.
Good luck, I hope this helps a little.
Rod
Ya, I got 3 of these so am rather familiar.
Is this a new to you or have you had it for a while?
I highly recommend getting a brake bleeder, about $20 from Harbor Freight ... unless of course you do not mind the taste of gas by sucking on the fuel line. Hook it into the input line to the fuel pump to check the path from the tank to the primary filter/water separator thru the fuel selector (check reg/reserve/off). Watch for bubbles (air in the path is a regular problem due to bad seals).
Very common to these is that the little filter at the ends of the pickups inside the fuel tank fall off due to the lines inside the tank rotting off. Note also that these filters have a check ball in them to prevent backflow and I have seen them frozen both open and closed; shaking them around should tell you if the checkball is loose and working.
Old crud in the fuel tank can stop up the works. Fuel tank can be removed thru the forward hatch for cleaning.
If you have good flow to the input side of the fuel pump, first insure the pulse line to the fuel pump is good and secure so no leaks. Insure no source of sparks or flame anywhere around. Remove the line going to the input of the carb and put it into a bottle, crank it over several turns and you should get flow.
You can take the fuel pump apart; I do not recall seeing a diaphram kit for the external fuel pump, but I have not looked.
A lot of the experts recommend replacing the old round-body carb with the SBN square body that has the fuel pump included. Just insure you get one from a single-carb installation. If you decide to go this route, check back here and I can direct you to the expert's link for jetting.
Good luck, I hope this helps a little.
Rod
Thank you ... Thank you. I've had it over 25 years. I did replace the pick-ups in the tank because they broke off but that's about it. This is the first time I'm kind of stumped. I tried sucking on the line to no avail but wasn't sure what to expect ... I'll get that Harbor Freight tool and check it out ... Thanks Pete
89seadoo587sp
New Member
was this ever resolved? i have the same issue but have gone to a sbn38 square body thats not getting gas to flow either
- Status
