getuout2

I have a 1996 Seadoo Spi and it starts fine but when you press the throttle it starts to jump on plane and then boggs out. Some times it will stay running other times it won't. Also, if I kind of feather the throttle I can get it to full throttle but it will only go like 4 to 5 MPH. I just recently purchased this for my wife and I don't know the history as to when it was run last. Any ideas would be appreciated.

oldguy1

did you drain the old fuel ? did you change the spark plugs ? did the carbs set with fuel in them all winter ? sometimes the injector pump can leak oil past the crank seals when stored for a long time. does it smoke like a freight train ? exhaust leak will also do that. good luck !!!

oldguy1

i also removed the choke and installed a dual primer kit. starts so easy ! sorry it took so long for someone to respond. makes me wonder about this forum.

smussler

had the same issue with my 96 spx. found that it has old grey lines so those will have to be replaced, but as a quick fix for now, it will run fine when on RES fuel setting, not ON.

try switching to the RES fuel setting, could be a plugged fuel selector valve, thats what seems to be wriong with mine

oldguy1

forgot to mention the rectifier/voltage regulators go bad and cause them to crap out at 4 to 5k rpm. I had it happen on mine. easy to replace cost about $70.

Johnrmclean

MY 95 SPI started doing the same thing just today. Starts and runs great then wants to bog down or surge at speed. What is the deal with the grey fuel lines ??????????????????

oldguy1

The gray fuel lines get soft insde, and gell up. The fuel selectors go bad as well. If it pulls good to about 4,000 rpm then craps out, more than likely it is an issue with the rectifier / voltage regulator. Doesn't hurt to change the fuel lines out one by one. If you go into the electronic box in the front left side forward of the fuel tank, and unplug the red wire to the rectifier the battery won't charge but if the issue goes away change the rectifier.

Johnrmclean

That is what happens but it just started. these are 95 SPI machines

It runs ok at idle and very slow but when you accelerate it starts to surge on and off.

I also have an issue with my other machine. I put in a full charged battery and run for an hour or so and its dead and have to keep jumping it. Should the machine be charging the battery while I'm running and if so is that the voltage reg that is probably bad?

Is there diagrams some where i can find to see where the regulator is and looks like?

Seems like every other year I have to put new batteries in these things.

Thanks
John

Johnrmclean

Also ..by fuel selector your talking about the closed/open/reserve switch on the side?

Johnrmclean

sorry again..where can you find a coveted dual primer kit. The chokes kind of suck!