2001 Seadoo GTI won't start

[frozenokie]

I can't figure out what's wrong. I bought this craft to rebuild and sell. Electronically, everything worked until I completely rebuilt the lower/upper end of the motor. I have done a number of these so I know that the wiring is hooked up correctly and the motor did run before rebuild.

During first start-up it ran great. All hooked up with water for cooling. I ran it for no more than 5 minutes and I hit the start/stop button to stop the motor which it did. I then tried a restart - nothing at all, no beep, no signal to gauges, NOTHING:facepalm: So I started investigating...

I noticed the rectifier was burning hot to the touch! I also tested it with my meter and it tested bad. Never had it get hot before rebuild. However, I did NOT replace the stator and connector wiring during rebuild. So I replaced both the rectifier and the computer controller since it also was burning hot But still had no luck. I tested the start/stop switch - tested OK. Wiring looks clean and not burned. Fuses are good. I can jump solenoid to start so that electrically is good also.

I feel I should have replaced the stator now - hind sight 20/20 But believed it would work fine since it did before. But I cannot figure out how and where to check the stator to see if it's bad.

Can someone tell me how to check it or tell me if there is something in diagnosing that I need to check out???

 

[Leedanger]

Re: 2001 Seadoo GTI won't start

If you are still not getting any kind of beep with the DESS key then something is up with the MPEP...did you check fuse #1? It is weird that it got hot, don't recall any of them doing that to me ever, although I've never been there that I know of at the moment they went out. I don't personally think it's a stator issue, but I believe the test in the two attachments I posted will tell you if it's working or not...you just need to make you one of the harnesses using an old one if you have it. I have a ScanSea which works pretty good so I haven't tried this diag method for a while. My gut is that you have a short somewhere though.
View attachment 187845View attachment 187846

Good Luck

 

[frozenokie]

Re: 2001 Seadoo GTI won't start

Hey thanks for the help Leedanger. Yes it was quite the oddity. And, NO, I'm not getting a status beep either. The MPEM has just been replaced, so I bet you're right about it being a short. I assume the best way for finding that is the trial-by-error method - checking each and every wire at the ends for continuity with a meter, so that will be my first step.

This also rings true about the shorting wire(s) is that the motor ran for longer before rebuild without this problem. In the act of removing the powerplant, one must disconnect many hoses, wires, harnesses, etc. Therefore, creating the problem during this activity. I will update this post when I know something.

Thanks again

 

[frozenokie]

Re: 2001 Seadoo GTI won't start

After testing several circuits and components, they all check out OK. Looks like it will be easier (less painfull to wallet) to pull off flywheel and stator than buy a harness adapter and to test stator intact. I might get lucky and actually see the burned wire(s) or area(s) of the stator and be done with it.

This weekend I will have another update...

 

[skidooseadoo83]

Re: 2001 Seadoo GTI won't start

Could have a couple things going on... did you check for power at your starter solenoid when you hit the start button? And the ign. fuse in the MPEM isnt blown right? I had my starter go bad, same symptoms. The initial problem could have been the starter never disengaged and ran for 5 minutes, that would have definitely heated up your rectifier and MPEM, and since its not an instantaneous load like a short, its possible it wouldnt have popped the fuse. The duty cycle of the system can not sustain a starter motor running for that long, and things burn up. Regardless of the condition of the stator, with a good battery, and no popped fuses, you should at least get a crank. I would focus on this before tearing into the magneto, you might find that it is dead as well after you get it running but crank/start issues are separate from the charging system (granted as long as you dont have a dead short, popping fuses... u do rebuilds im probably preaching to the choir.) There is a little spring loaded block that rides on the starter rotor, this little block wears down until it can pop out of its recess. I actually took apart my starter and fixed it cause it was going to take too long to get a new one, lol.

 

[frozenokie]

Re: 2001 Seadoo GTI won't start

Well, I can see where that would do it, but I have a brand new starter and new battery. I also just confirmed that the lanyard post, start/stop switch, main wiring harness, MPEM, rectifier/regulator, and buzzer are in working order. So, now that the starter issue is no more, what would be the easiest way to check the solenoid and coil?

 

[Leedanger]

Re: 2001 Seadoo GTI won't start

Your battery connection is wrench tight right? I know that seems like such a silly question, but I have had just that happen before and that would also cause wires to get hot. I would double check all of the battery leads and the leads going to the solenoid just in case.