1976 evinrude 70 hp no spark

[serpent6923]

i have a 70hp evinrude outboard tha lost spark on all cylinders at once will the ignition switch cause this or is it something else? it ran earlier that day than all at once nothing. all i did to it was change battery cables and went to go try it and no spark can you tell me what wires to jump on the ignition switch to jump to test it?

 

[billy4hp]

Re: 1976 evinrude 70 hp no spark

i have a 70hp evinrude outboard tha lost spark on all cylinders at once will the ignition switch cause this or is it something else? it ran earlier that day than all at once nothing. all i did to it was change battery cables and went to go try it and no spark can you tell me what wires to jump on the ignition switch to jump to test it?

Is it possible something got left off when you changed cables or accidently shorted and you popped the main fuse which is located on the port side of the cylinder head towards the top (cyl #1)?

Never hurts to recheck what was just done especially when a problem like this crops up...

Good luck,

Billy

 

[tashasdaddy]

Re: 1976 evinrude 70 hp no spark

i assume the engine is turning over. the unplug the big red connector. now jump from the incoming positive post on the solenoid, to the small post next to it. some times the small connectors are wired opposite, if it does not turn over, jump to the other small post. unpluging the harness, takes the controller out of the equation.

here are some other test: http://www.boatpartstore.com/page29.asp