96 gsx no spark new motor had spark before i changed the motor HELP ME PLEASE

[buker2006]

The short of a longs story . bought 96 gsx 800 last fall rode it 7 minutes blew engine hard nothing but carbs survived
so in the past couple weeks i found a new engine in decent shape to save some future issues i tor it down and had crank redone balance shaft as well cyl were good so honed new pistons rings gaskets etc . got all done installed it hooked everything up like it should be go to start for first time and it wouldnt go ..

NO DAMN SPARK​

So ive gone over everything again and again . it ran when it blew up . so i have tested coil pick up wires caps plugs little black ground wire to battery everything seems to be coming up with proper readings

it rolls over and over all day long changed and charged batterys to keep voltage full since i have heard 787 do not like voltage drop .
ive talked to dealer about this today, and they say there is no way to check mpem . only way to rule out is by changing them and one is 800 and the other 400 give or take seems to be a pretty expensive gamble for a ski i know have almost 5000 invested to something that is worth 2900 on a good day i am so confused and my mechanic is ready to pull his hair out but his marina is way cheaper then the dealer so ive been using him . he tested all this stuff over and over again today for 5 hours straight . we even changed to a known working coil because it was available on a running ski on the lot but that made no difference

so if you have any idea please help me i would really like to ride this before the snow falls and before i go broke ..

thanks in advance

 

[Dr Honda]

I know you said you checked the pick-up coil... but I'm assuming that you checked it with a meter. Pop the MAG cover off, and make sure the coil is attached to it's mount. On the 800 engine, they have a tendency of breaking loose, and you lose spark, but they will still check OK.


Now... as far as the dealer goes... they just didn't want to work on your ski. (believe it or not) Basically, the way they see it is... it can quickly cost more in labor charges than the ski is worth. They can hook to the MPEM... but since it's the first generation... it doesn't tell them much. Basically, if you are getting 2 beeps when you put on your lanyard... then the MPEM thinks everything is OK. If the dealer plugs in the BUDS system... it's also going to report that everything is OK.

 

[buker2006]

thanks dr honda .. but about the pick up coil? i just put the engine together , and it was fine are you saying just from me putting it in the ski it could have broke loose ? and when i put lanyard on i do get too beebs every time . this has confused me so bad and i mean ive thrown the money at it but at this point im about done . i mean willing to just throw it in the back yard let it rot an cut my loses but i just spend two K building this engine .

 

[brock1]

AT this point popping the mag and checking the coil seems pretty relevant especially since you have gone through just about everything else....what ciould it hurt right??? if you had spark before you reinstalled then you must have hooked something up wrong....

 

[bmocken]

AT this point popping the mag and checking the coil seems pretty relevant especially since you have gone through just about everything else....what ciould it hurt right??? if you had spark before you reinstalled then you must have hooked something up wrong....

Take the time and re check everything. I did some work on my ski and when I was done had issues. After getting frustrated I walked away and came back the next day to find I hooked up a fuel line in the wrong place.

 

[buker2006]

ok first off too dr honda thanks your words of wisdom are being taken .... now for bad news for me still ive removed the mag housing and the pick up was mounted fine removed bolts to make sure it wasnt adjustable and maybe had moved lock tight them and back on and still no spark, ive gone over every ground wire front to back coil again and pickup as well every reading is perfect full charged battery lanyard on two beebs as normal and yet no spark

please any other suggestions would be awsome ive sunk so much cash into this thing this week all i want to do is ride it ...

only other thing i can think that is different or changed , and i dont see this being a problem or a cause but vts motor is unplugged right this second rebuilding the motor . ? it runs its own ground and so i cant see it making a difference but ................................?

any suggestions please

 

[buker2006]

Ok here is where i am at have now spent another entire day trying to solve this problem, have read every post the internet has to offer about no spark issues and what can and cant be tested . I am truly hoping someone can help me out here before i light the sea doo on fire and buy some marshmellows .

i have gone over everything again.. and where i am at is at the coil white wire i should have around 130 volts give or take with a test light i have very faint light and with meter i have about 30 volts give or take pick up is testing fine been apart cleaned not broken or moved new battery fully charged , lanyard only beeps twice even when diagnostic check is done . will beep 4 times if i unplug cdi box and from what i can find this is all normal . VTS motor is back in and working all fuses cleaned replaced just as a chance have tryed another known working coil just cause it was available still no difference . all mpem readings are coming out with in spec of service manual

so this is where i am at ... with out just taking a chance and buying an cdi and mpem and wasting piles more money does anyone have a thought a clue????????????????? feel free to ask me question s i myself and a 23 yr veteran mechanic are stumped and with out going to a dealer at 90 dollars an hour for them to waste all my money doing what i have done im lost we're lost ...
anything you have to say will or might help thanks

 

[Tsef]

May sound stupid but do you have prime to carbs no fuel not start!!

 

[buker2006]

May sound stupid but do you have prime to carbs no fuel not start!!

sorry but yes kinda stupid since the whole post is about having no spark . nothing to do with not starting . but thanks for your your reply just not going to help with my situation

 

[Tsef]

sorry but yes kinda stupid since the whole post is about having no spark . nothing to do with not starting . but thanks for your your reply just not going to help with my situation

So ive gone over everything again and again . it ran when it blew up . so i have tested coil pick up wires caps plugs little black ground wire to battery everything seems to be coming up with proper readings


I remember you saying you checked all that and you came up with proper readings. Yes fuel has alot to do with running motor. New motor means newly attached fuel line that sometime are difficult to prime so motor will turn over all day without starting.

 

[buker2006]

turns over fine ... lots of fuel actually have it turned off so i dont fill engine or hydro lock it while trying to get spark.... everything is checking out ok... but when i follow the white wire from cdi box to ignition coil there is min voltage readings .. i should be 130 volts there abouts tested another seadoo using same coil today and that is what it is reading . but i am getting around 30 volts ... so i dont really want to dump a bunch of money on a cdi if there are still things i can try

 

[Seadoobuddy]

How about a bad voltage regulator/Rectifier.

 

[buker2006]

ok thanks .............. can you tell me more first i have heard of this interfering with creating spark ..... is there a test for this or a by pass ?
i mean the confusing part is seadoo ran blew up motor came out seadoo got shrink wrapped and stored till past couple weeks i mean it was just left out ......... and now there is just no spark with everything i try . so if you can lead me with a bit more instruction i will gladly try anything else ... thanks