1987 Johnson 9.9 outboard

[Timmstng67]

Hi
I have a 9.9 that loses spark after it warms up. Runs fine untill it warms up. Any help would be great.

Thanks Tim

 

[JB]

Re: 1987 Johnson 9.9 outboard

Howdy, Tim.

Welcome to iboats.

Sounds like a heat related failure in the ignition system.

 

[iwombat]

Re: 1987 Johnson 9.9 outboard

Loses spark completely, or on one cylinder?

If one cylinder swap coils, plugs and plug wires from one cylinder to the other. See if the problem follows.

 

[Timmstng67]

Re: 1987 Johnson 9.9 outboard

Thanks for the info... just now getting back to working on this problem .....This is a great sight and again Thanks for everyone's input and knowledge.

Tim