1997 Seadoo GTX fuel problem

[etemplet]

Dang man you are getting down to the nitty gritty. I'm not sure about the trigger pulse. I believe it was just an ohm reading to insure it was not grounded or open. The three Yellow wires (those are from the mag I) need to be around. .5 ohms. If I remember correctly the trigger coil is around 240-260ohms..

This is what happened with my 1996 GTX. It wouldn't start so I rebuild the carbs which were very bad. It started up great in the shop right away then another time or two. Then it wouldn't start at all. No Fire, then it would start up and run great on the trailer. Then wouldn't start. I never took it to the water. Fought it for weeks and studied. I ended up paying that question answering service about $20. They guy helped me narrow it down. This was my first electric issue with any ski. I was learning.

What I've learned since then, VIA Matt Braley is to buy that little tool that separates the pins from the connector and check the pins. That 96 I repaired would not start up right away after connecting the battery. It had to sit for 20 minutes then it would start. I didn't quite figure this out until I separated the connector pins on the DESS. When I stuck the tool in there.... I encountered "crusty dirt" After I cleaned that plug I never had the problem again.

I had another "no-fire" issue on a GTX. I was not getting voltage to the coil. I replaced the MPEM with a spare and the ski started right up. Good Luck !! Let us know what you find.

 

[etemplet]

Did you buy a $5 spark checker from the Auto Parts? That little thing points me in the right direction quickly. You hook the plug wire to the device and the other end to the spark plug. It's clear so it is Easy to see fire and the engine will run with it on there. You can even see a weak spark as it will be dim. Not rocket science but neither are these skis.

 

[tobytd]

Another quick check from Matt: test light to white trigger wire for coil will FLICKER ( not light ) if coil is getting proper signal from trigger, when cranking.

 

[etemplet]

Another quick check from Matt: test light to white trigger wire for coil will FLICKER ( not light ) if coil is getting proper signal from trigger, when cranking.

Damn that'll save some time and effort. LOL

 

[R-u-n2it]

I don't think the point about changing fuel lines sunk in, if you have ethanol in your fuel it will break down the composition of the stock grey fuel lines and you'll get a goo like substance blocking fuel passages, green goo was what I remember. So when you do get spark and run the OEM lines you will have to clean the fuel system again, do it once and do it right.

 

[Mitchelll_3]

I don't think the point about changing fuel lines sunk in, if you have ethanol in your fuel it will break down the composition of the stock grey fuel lines and you'll get a goo like substance blocking fuel passages, green goo was what I remember. So when you do get spark and run the OEM lines you will have to clean the fuel system again, do it once and do it right.

Okay, after many trials and many hours, we finally figured it out. We do have an identical ski. So after having a hunch that it is the MPEM we pulled the whole electronics box out of our other one and plugged it into the bad ski it fired up immediately. So after looking at some MPEM's online, OEM ones are very expensive used. And new ones are upwards of 1K after we convert to Canadian dollar. I also saw a lot of aftermarket MPEM's for much much cheaper. Around $200 range. Has anyone bought one or know of a good reliable one that is easy to have programmed of necessary and will work with our seadoo.

 

[POPPS]

Had no spark once on my 96 XP, turned out I had corrosion, (green), on the male (pick up,trigger) pins at the front of my stator cover. Get a mirror, have a look, and eliminate that from your equation, easy to check and eliminate.