My 97 SeaDoo GSX won’t start .. no beep totally dead

[teenyc]

My 97 Seadoo GSX won’t start .. no beep totally dead. I replaced the battery and the solenoid. It will start if I jump the solenoid. I checked the fuses in the front and the 15 AMP in the box next to the solenoid and it’s all-good.
It was working before I attempted to boost start the battery. Please help..

 

[mikidymac]

Sure sounds like you fried the MPEM diode. You can search for how to dig it out and replace it or buy a tested used MPEM from @Minnetonka4me. Keep in mind this is a 1 year MPEM and are expensive because of this. Also it is never recommended to "boost" start a seadoo for this very reason.

 

[Minnetonka4me]

The 5amp would blow if it's the diode... Hit the start button a few times. Is the gauge coming on?

You can also send it to me to make sure it's actually dead.

 

[teenyc]

no, when i hit the start button.. nothing happens.. is there a way to test the MPEM?

 

[mikidymac]

The only way to be 100% sure before spending a bunch of money on a new one is to send it to Nick above for testing.
Do not buy an aftermarket one as they are crap!

 

[teenyc]

hi Guys .. does it make a difference that when I jump the solenoid it beeps and red light comes On on the left gauge? is it still the MPEM or it might be something else?

 

[Minnetonka4me]

Make sure the little wire hooked to the solenoid post is on the same post the battery wire is and not the starter.

 

[Coastiejoe]

Sounds like you have the feed wire on the wrong post. On the BATTERY side you want all the wires except the one single large wire that feeds the starter.

 

[teenyc]

Nick .. you are the man .. i switched the wire and it started right away. i must flipped the wire when i replaced the solenoid... you guys are the best .. Thank you

 

[TomShadow]

Any chance of a pic of said wires in the solenoid box

 

[teenyc]