1999 sea-doo GTX electrical mystery

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I don't have a whole lot of experience with small engines, but my first guess would be the starter soleniod. When you say, "It won't start," do you mean you turn the key and nothing happens(no clicks or anything)?
 
I have a '96 GTI and had a similar problem.

If your key is the same as mine (post key, with male end with contacts on the doo and the key is female), it could be that post. Mine went out, and in talking to the service guys, it turns out that the key posts are solid state and they burn up after a few years. I replaced it, and that solved my problem. This is after I tore into the starter, timing cover, etc. to try and figure out.

What sucks, is that you have to just guess on that part and replace it. There is no way to test it, other than what we've discussed here. It's a $100 part, and a BITCH to replace unfortunately. You could buy one, plug it in, and try it, and if it's not it, return the part (if they allow it).

Other than that similar problem, my GTI has been great. Good luck.
 
I have a '96 GTI and had a similar problem.

If your key is the same as mine (post key, with male end with contacts on the doo and the key is female), it could be that post. Mine went out, and in talking to the service guys, it turns out that the key posts are solid state and they burn up after a few years. I replaced it, and that solved my problem. This is after I tore into the starter, timing cover, etc. to try and figure out.

What sucks, is that you have to just guess on that part and replace it. There is no way to test it, other than what we've discussed here. It's a $100 part, and a BITCH to replace unfortunately. You could buy one, plug it in, and try it, and if it's not it, return the part (if they allow it).

Other than that similar problem, my GTI has been great. Good luck.

Most places wont return any kind of electrical part.

Start diagnosing the basics. fuel, spark. when you find a lack of one, go in that direction. Is it carbureted? vapor lock?
 
Yeah, good point. I don't think I had the option to take it back.

I think '99 was still carbed two stroke, but not sure. Fuel and spark are easy to check, just pull the air box off, then the screen filter. Spark plugs are right on top, but you probably know that.
 
Start with the battery cables. I've had boats that would act like what you are describing. For some reason, after they ran for a while, the cables would get hot, and it wouldn't restart until they cooled down.
 
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