No spark/fire I need help

[Hammonds]

Hello Everyone,

I have a 1997 spx with the 787 engine. Just bought it a month ago and it started fine that time. Now I try to start it and I get no spark. It turns over but will not fire, very frustrating. I took it to a repair shop and they looked it over and could not find the problem. The shop changed the spark plugs and wires, checked compression at 150 psi, checked fuel filter and couldn't get it to start with carb cleaner. Checked voltage to coil and is within spec. I need help what can I do to get this thing running again? I checked the post there is no corrosion. I checked the fuses and all are good.

 

[purple_people_eater]

ok first things first: do you have two negitive wires running to your battery? the coil is housed in the rear e-box and has its own ground to the battery, if the is no conection or a bad conection on that line, you will have no spark.

 

[Hammonds]

yes, I do have two wires running there. and also I forgot to mention that the guys at the shop crossed some wires in attempt to get the engine to backfire, and it wouldn't even do that. Now I can't even hear the two beeps when I attach the lineyard. The seadoo was outside in the rain when I had to take it for inspection before I registered it, but if this thing is meant to be in the water, I don't think the rain would affect the post...???
Thanks! I'll be waiting for a new reply...

 

[Dr Honda]

Sounds like that shop owes you an MPEM.

Since you have an 800 engine... I bet the pulse coil broke from it's mount. Take the MAG cover off and you will see it.

 

[Hammonds]

Nice!!! I'll check that when I get home and I'll write back. The last thing I need is more damage caused by the Ozarks Seadoo Dealership! And the guy that looked at it had "25 years of experience"!

 

[Dr Honda]

I know I've pissed people off by saying this in the past... but let's face it... most people who turn a wench (and get dirty) do so, because they can't do anything else.

 

[Hammonds]

Where is the MAG located? I can not find it in the manual. Thank you for your help.

 

[Hammonds]

Thank you to anyone who knows about the Sea Doo.

 

[Hammonds]

Well, turned out the dealership at the Ozarks did NOT check the fuel line! I took it to a shop near by, and they said it was full with mudd/crap. So the fuel line had to be replaced and the carbs had to be rebuilt! $560 later, works like a charm. I guess all places charge $100/hour labor??? And to think that the Seadoo dealership at the Ozarks wanted to take the motor apart and replace the rotary valves to see if that's the problem! They didn't even offer to do "diagnostics"! So if you go to the shop, ask them to do diagnostics! Don't let them start replacing part by part to see what the problem is!

 

[IDoSeaDoo]

it's peculiar that you were not getting spark before, and now you are...

 

[Hammonds]

I'm just glad it's running now. Took it out on the lake couple weeks ago - no problems. The crazy thing is that sometimes I didn't get the two beeps when connecting the laneyard, but it still started... :hurray:

 

[easyseven]

if i may i have a 1990 sp seadoo and it had a sat for 10 years, when i stored i drained everything and removed battery and put oil in cylinders, i am recently trying to get it running for grandkids and fired it up and no spark on the plugs. So i remembered that generators that sit a long time have a dead armature and if you tickle the output with just a little voltage (flashlight battery) it will regenerate, so i tried the same thing on the seadoo on the wires that come from the magneto to the cdi i again used a AA 1.5 volt battery and touched to the 3 wires 2 at a time got a little spark across two wires aha! put it back together with fresh gasoline and hint of water in the cooling system and it fired up on the first stroke. My troubleshooting guide suggested changing the magneto cdi and the coil at the tune of a million dollars so i tried my method first and free

 

[easyseven]

spoke too soon as soon as it started running it quit today, ran through the wiring diagram and found no 12 volt going to speed limiter which is fed by stop button and tether jumped out the stop button and no problems now fired right up any one know where i can get that little red button that is on the left handle bar, gonna try running some contact cleaner through it in the mean time my stop button will be jumped out and i will use tether for stopping

 

[brock1]

Hello Everyone,

I have a 1997 spx with the 787 engine. Just bought it a month ago and it started fine that time. Now I try to start it and I get no spark. It turns over but will not fire, very frustrating. I took it to a repair shop and they looked it over and could not find the problem. The shop changed the spark plugs and wires, checked compression at 150 psi, checked fuel filter and couldn't get it to start with carb cleaner. Checked voltage to coil and is within spec. I need help what can I do to get this thing running again? I checked the post there is no corrosion. I checked the fuses and all are good.




Did they check voltage after the coil???? sound like the coil is bad if you have spark to it but not after it

 

[IDoSeaDoo]

you need to check the pick-up coil, but I'm not exactly sure as to how to do that. There's a chance that that pickup is not sending the pulse to your primary coil (the black on it the rear box). I know they checked the voltage to the coil, but did they check the ground? Run a ground to it and test it again I had that happen on my 97 spx, it's why I got it as cheap as I did

 

[brock1]

but it seems that if he dosent have spark after the ignition coil (the one in the box in the back ) then is would be that coil is bad. There are two wires that plug into the bottom of that coil a white and a black leave the black on and pull the white off after the white is off make a JUMPER (just a 2 foot piece of wire) and strip both ends of it. Shove on end into the white wire so you have connection and touch the other one to a piece of bare metal on the BLOCK ONLY. at the same time hit the start button and roll it over . if you get an arc from that wire then you coil is bad. REEPLY with results