New to jet ski world.

[LJ_cusick]

So as the title states I'm new to jet ski world. Please point me in the right direction if I post into the wrong spots and please excuse any newbie questions.

So I picked up a pretty 1996 gpi seadoo with trailer for 400.00 right now I'd like to just get it running and ready for the summer. Motor is not stuck nor is the impeller shaft. And the ski has be run in mostly fresh water all its life. As stated from previous owner. But dose not start due to a bad starter solenoid which h I already ordered. Is there anything major that I should look for or just go ahead and due now before the season is here?

 

[noviceskier]

So as the title states I'm new to jet ski world. Please point me in the right direction if I post into the wrong spots and please excuse any newbie questions.

So I picked up a pretty 1996 gpi seadoo with trailer for 400.00 right now I'd like to just get it running and ready for the summer. Motor is not stuck nor is the impeller shaft. And the ski has be run in mostly fresh water all its life. As stated from previous owner. But dose not start due to a bad starter solenoid which h I already ordered. Is there anything major that I should look for or just go ahead and due now before the season is here?

I'm no expert and I am also new to this too. But how I found that my 300 dollars ski atleast had some compression, was first pouring some 2stroke oil down the cylinders to lube them up since it has sat for awhile, then turn it over by hand without the plugs in for about 10 mins. Then with plugs in, I graudally felt the force needed to turn it over increase (assuming thats the rings setting.) I was recommended to to a compression test before I spend any money on it, I have also seen people jump bad starter solenoids with a wrench. I have not tried this personally because thankfully (as far as I know.. lol) My mpem/electronics are functioning. Best of luck to you with your restoration as well too!! I've always had a thing for old 2strokes and will defiantly be buying a 96 xp when the right one shows itself to me.

 

[mikidymac]

Assuming everything is good there are a few things you need to do before ever putting it in the water.
1. Change the pump oil nad check impeller and wear ring.
2. Rebuild the carb with only GENUINE MIKUNI kits and needle and seat.
3. Clean and/or replace fuel filter and square o-ring.
4. Change the fuel selector with OEM not Chinese junk.
5. CHange fuel lines if they are gray or hard. Standard automotive black 1/4" fuel hose.
6. Fresh gas.
7. Replace the small 3/32" tygon oil hoses from the oil pump to intake manifold.
8. Change the oil filter and verify only API-TC oil is used. No blue or green oil.
9. New NGK BR8ES plugs.
10. Strong battery, never jump start or Boost Pack.

Enjoy all summer...

 

[LJ_cusick]

I'm pretty sure the engine has good compression I tries to kick over pouring a bit of gas through the carb not turning the fuel on because I'm will be removing the gas tank to get all the old gas out of it before I fire it up. I'm just really looking to see what I should be doing or checking as the ski has sat for a couple years. I dont want to get out on the water and have a major issue that i should have checked and didnt. Here is a picture I took of the ski the day I bought it

 

[mikidymac]

Looks clean!

Check compression as it starting out of the water tells you nothing other than it starts.

 

[LJ_cusick]

Looks clean!

Check compression as it starting out of the water tells you nothing other than it starts.

Yea thankfully it's very clean and was kept in the garage. I pulled the pump of the ski yesterday, oil looked good but still going to change it out. As for the wear ring welp I cant say much other then I order a new one. However I do not have the tool to remove the impeller so I'm going to see if a local marina can do loosen it for me and then re tighten it after I get the new wear ring in. The carb was just rebuilt last year by the previous owner and never ran in water at least. He said he started it and let it idle to make sure it was ok.. it still has the gray fuel lines in it I dont know if I'm going to change them out right away or not just till I get it im the water and make sure it's good from there. I will be draining the old fuel out of it and putting fresh gas in my starter solenoid should be here tomorrow so I will bring my compression gauge home and test it. I'm pretty sure itll be good and when I did get it to kick over it sounded pretty healthy.

 

[GGuillot]

The carb was just rebuilt last year by the previous owner and never ran in water at least. He said he started it and let it idle to make sure it was ok.. it still has the gray fuel lines in it I dont know if I'm going to change them out right away

Did the carbs get built with OEM kits? I definitely wouldn't leave the gray lines in it, the tempo lines from the 90's goo up from the ethanol in today's fuel and cause issues.

 

[mikidymac]

As said above get those gray hoses out now! IF the crabs really were rebuilt correctly there is a good chance those gray lines will plug up your fresh carbs.

For less than $20 if fuel hose why chance it?

 

[LJ_cusick]

True. I'll probably pick some up this weekend

 

[noviceskier]

True. I'll probably pick some up this weekend

Good idea, my fuel lines are pretty bad

 

[LJ_cusick]

Welp I did a little work on the ski today after replacing the starter solenoid. Ski still wouldn't start when the start button is pressed broke out the test light found that the 5 amp fuse was blown even tho it didnt look like it so I removed it and replaced it, but as soon as I touched it "pop goes the wessle". So now I'm looking at the rectifier and starter solenoid and its saying the one fuse is ran to the solenoid and the other to the rectifier (hitting head against wall)

 

[jts32]

Hate to say it, but your mpem is probably shot.

 

[noviceskier]

Welp I did a little work on the ski today after replacing the starter solenoid. Ski still wouldn't start when the start button is pressed broke out the test light found that the 5 amp fuse was blown even tho it didnt look like it so I removed it and replaced it, but as soon as I touched it "pop goes the wessle". So now I'm looking at the rectifier and starter solenoid and its saying the one fuse is ran to the solenoid and the other to the rectifier (hitting head against wall)

someone used car booster to charge battery in ski, rip mpem.

 

[Grnbeano]

someone used car booster to charge battery in ski, rip mpem.

I agree..
Never jumpstart a ski of this nature, or any for that matter. Sorry Bro!

 

[LJ_cusick]

Well be for we rule mpep totally out. Between looking a wiring diagrams and tracing every wire. I found that one of the 3 solid black wires with eyelet termins has power and one goes to the starter solenoid, it was bolted to the ground. Diagram only shows 4 grounds in the box and that one made it 5.

Dose anyone have a pic of their gray box and how everything is hooked up and laid out. So I can see if someone was moving shit around in there thanks

 

[LJ_cusick]

That black wire right next to the mpem has two eyelet terminals on it. One was originally going to ground and the other was going to the coil. Now the question is that right? Should those two eyelet terminals have power on them? Is that where they actually go? Because the schematic is showing no actual ground for mpem. And no I personally never used a jump pack nor did not jump start the ski. Only thing I did was take the battery out of my Harley and put it in the ski to test the starter solenoid because the previous owner said it was bad verified ordered solenoid. Put said solenoid in no click no nothing and this is where I am at and reading the schematic.

 

[mikidymac]

If it’s a black wire with an eyelet it’s a ground.

 

[LJ_cusick]

If it’s a black wire with an eyelet it’s a ground.

So the one black wire that comes out of the mpem with the two eyelets on are suppose to go to grand why on the schematic is it showing it at the coil? Or if those to have power is it 100% safe to say the mpem is no good?

 

[LJ_cusick]

And my schematic I have that is for this model ski is showing only 4 grounds in the electrical box without vts. Those two ring terminals off the mpem on that one black wire would make 6 grounds in the electrical box. Plus I'm not seeing a physical ground on the schematic for the mpem.

 

[mikidymac]

Black is always ground so if it is black and has a ring terminal it is a ground no matter what your diagram shows. all other connections are made with connectors not ring terminals.

 

[LJ_cusick]

Ok

 

[LJ_cusick]

***update***

I got the ski running yay!! The mpem was shot. Thank you guys for the help. And I want to say I wasnt listening to those of you who had metioning it being the mpem. I'm fairly ok with electrical and was just getting very confused between the schematic my manual was showing and the actual wiring but through the process of diagnosing everything I clarified that it was 100% that mpem. Replaced it today and got some fuel in her and she fired up.