1975 85 hp johnson, no spark

[redwolf]

put it away two years ago ran fine,, try to get it running now and no spark to the plugs,, motor turns over and electric choke works,, where should I see if there is power, or what could of went bad? thanks for any help....

 

[JB]

Re: 1975 85 hp johnson, no spark

Is the clip in your safety kill switch? Is your conttrol in Neutral? Either of these can prevent spark.<br /><br />Failing that, get a manual and do a routine ignition check out.<br /><br />Good luck.

 

[oldboat1]

Re: 1975 85 hp johnson, no spark

JB has good advice -- good chance it's just your starting procedure after a couple of years of not running the motor. Are you sure there is no spark? I had a '70 85hp until recently, and it just took a while before it would fire up after sitting -- but always finally started and ran well.

 

[Joe Reeves]

Re: 1975 85 hp johnson, no spark

RedWolf.... Remove the spark plugs, rig a spark tester whereas you can set 1 gap to 7/16", then check the spark. If no spark, remove the black/yellow wire from the power pack and recheck. If you now have spark, either the ignition switch is shorted or was in the off position, or a short exists in the wiring harness.<br /><br />Note.... After sitting for that length of time, the carburetors are no doubt fouled and will require removing, cleaning, and rebuilding.

 

[redwolf]

Re: 1975 85 hp johnson, no spark

thanks for the help,, have a manual on the way, I will try that yellow wire that you mentioned joe,, I have already put at tester on the spark plug wires and they are not firing,, i will try the yellow wire though and let you know joe,, if I can get out of work before late tomorrow night,,, thanks again for all the help....