1978 johnson 75 hp stinger spark problem

[mike69]

hi engine started two weeks ago fine now it has no spark but sometimes i get spark had new plugs made no difference ??

 

[boobie]

Re: 1978 johnson 75 hp stinger spark problem

Go to your mtr and take the cover off of the power pack (if it still has one) and find the black/yellow wire and disconnect it from the pack. If it has spark then you've got a boat wiring harness prob. If still no spark a mtr problem. Spark should jump a 7/16" open air gag.