If one of the purple wires is shorting to ground it will short out your jumper wire too. Do the giggle test. My first areas to giggle would be the wire between the harness plug and alt and the ignition/kill switch area.

Moving wires around does nothing. It's only when the motor has a load on it above 3,500 RPM will the problem resurface. This problem cannot be duplicated on the hose.

Go out and run it again till it does the no spark thing. Then giggle the wires. See if you get spark again. One ign wire is shorting to ground probably when it or the surface gets hot. That or the dist or module ground is weak.

Don't GIGGLE the wires. JIGGLE them..

I DID THIS WHEN I HAD NO SPARK AND THE MOTOR WAS HOT!!! I don't know how much more clear I can make this point to you. The problem is not in the wiring. Screw it I'll just spend the cash and replace parts. Thanks for the help...not so much.

Please remind me to never try to help you again with my experience of problem I've already had and solved. Your an ungrateful asshat.

Giggle, thats funny. )

wow,a pizzing contest about advice.to the origional poster,i had a 96 baja with a pair of sc525s,the port engine developed the same simptoms you are having,the problem was the hall efect unit in the distributor,i did some research and found that it was a common problem,this is what i would change,worked for me.

I got a hold of a diagnostic flow chart and found that the sensor in the distributor was the problem.....not loose wires. :-P now I just need to replace the elegid defected pickup and see if it runs.

when you get the new one make sure its the updated one..i for get what the diffewrance is,but it is almost a totallly sealed unit and i think it has wires attached to it..