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Question

I replaced the battery on my sea doo the other day and it started but had rough idle, and when i gave it gas it would hesitate to accelerate at first.
Today i replaced the fuel filter and added some fuel additive because it is last years gas, and now it will not start. what may be my problem??

Submitted: 239 days and 9 hours ago.
Category: Boat
Value: $18
Status: CLOSED
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Posted by ALL Around Tech 239 days and 9 hours ago.

Answer

Hello,

What is the year and model of the ski?

Does it have the grey fuel lines? If yes then that is the reason, the lines break down inside and clog the fuel system and the carbs up. I can guide you though the process of this repair step by step.

Is this the first time it was out yet for the season?

Lets see if you have spark, remove a plug wire and put it by the spark plug or ground and watch for an arc to prove spark, then you can try a small spray of starter fluid into the carb and see if it then trys to start, no matter if it does or does not do not keep spraying it in the motor as there is no lubrication in it for the motor, it is only used to test.

239 days and 9 hours ago.

Reply

My sea-doo is a '97 SPX.This is the first time this year i have attempted to take it out.

 

All of my fuel lines are grey, in color, not sure if thats what you meant. I have tried To see an arc and i saw nothing, but i do not have any starter fluid.

 

Also the spark plugs are from late last year

Posted by ALL Around Tech 239 days and 9 hours ago.

Answer

Yes if the fuel lines are grey in color they break down inside and clog the fuel system, poor design by seadoo but that seems like the only weak link to them, I only own seadoos.

Now for spark the since the fuel lines are grey I really need to make sure if it is fuel or spark or both, You can even put just a little gas into the cylinders if you remove the spark plugs then put them back in and see if it fires up, you can attach a spark plug to the end of a plug wire and put it near a ground and try to start you should see arcs.

a '97 should be dess system did it or does it still give 2 beeps when you put the key on?

239 days and 8 hours ago.

Reply

Sorry i am somewhat of an ameteur. Do you mean put gas into the hole the spark plug goes in? if so, How much gas to be exact?

 

What is a good ground?

 

If the lines are grey does that mean they are definately bad?

 

 

yes it does give two beeps.

Posted by ALL Around Tech 239 days and 8 hours ago.

Answer

Yes, pull a spark plug and just put about a tablespoon in each cylinder that should at least get it to cough.

A good ground is the battery neg- however you can use anything metal attached to the block/engine.

No just because they are grey does not mean they are bad you have a 25% chance they are ok, almost all of them greater with age have problems with the grey fuel lines they get a oozing stuff in them from the lines themselves and it clogs up the system, pull a fuel line off of the carb and look inside it that may indicate if there is sludge in it then they need to be replaced, can also remove the canister fuel/water serperating filter from under the hood and see if there is sludge, ooze in the bottom of it.

239 days and 8 hours ago.

Reply

I removed a hose and there didn't appear to be any sludge on the inside it looked pretty clean.

 

I did the gas thing and it still did not start, and i drained my battery so waiting for it to charge.

I am not sure what the fuel/ water seperating filter is, i am not very knowledgable, i dont have much money and trying to fix it myself.

Posted by ALL Around Tech 239 days and 8 hours ago.

Answer

If you lift up the hood and remove the storage bin, and look under the lip by the handle bars you will see a screw on filter.

Did the ski used to beep twice when you put the key on it, and if so does it still do it now?

I think you have a no spark issue, and when it is both plugs its not good (cheap) I can give you some tests to check things but let me know about the beeps first

239 days and 8 hours ago.

Reply

That is the filter i replaced today, the old one wasnt to bad just a few little peices of debri but not bad at all. It has always beeped twice and still does.

Posted by ALL Around Tech 239 days and 8 hours ago.

Answer

Well then the mpem should be good, try cleaning the key and the post for the key with an eraser, if that does not work I will give you specs to check the stator/magnito

239 days and 8 hours ago.

Reply

so the park plugs are good?

 

I cleaned with an eraser and it made the key more sensitive becuase i used to have to take it off and put it on, take it off and put it on for it to beep.

But is still cranks and sounds like it is going to start but as soon as i let off the start button it stops.

 

I feel like the battery has lost its power. Is it ok too hook it up to a charger without unhooking it?

Posted by ALL Around Tech 239 days and 7 hours ago.

Answer

do not try to start it without removing the charger, I would remove the ground cable just incase.

If it is trying to start then it should have spark

239 days and 7 hours ago.

Reply

ok the battery is charged. another thing i have noticed is that when i try to start it after a couple times the exhaust pops and discharges a burst of exhaust at high pressure. is this normal?

I still plan on purchasing new plugs tomorrow just in case but now what do you recommend?

Posted by ALL Around Tech 239 days and 7 hours ago.

Answer

It really sounds like that thing is trying to fire, you do not have the water turned on right? I would buy the correct spark plugs and gap them correctly and try that first.

239 days and 7 hours ago.

Reply

ok thank you. which spark plugs do you prefer, i have plugs from auto zone on there now. and what would be the correct gapping?

 

 

Also i am at my mothers and it is dark and would like to continue talking to you either tomorrow or the next day. is there a certain way that i could get you the next time i log on and if so what hours are you usually on?

Accepted Answer

Do not rely on my name saying online ( I never shut my computer down or logout) just keep me updated and I will contact you back,

Do you have your owners manual?

The plugs are only ngk's and must be the correct ones the 8's, I will have the exact number for you tomorrow, have a good night

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Expert: ALL Around Tech
Pos. Feedback: 97.9 %
Accepts: 410
Answered: 7/26/2009

Marine Mechanic

ASE, electronics, Marine inboards and electronics, automotive drivability, all around repair tech,

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