NO SPARK ON 1 CYLINDER

[TOOSTROKIN]

1987 EVINRUDE 3.6 LITRE. I HAVE BEEN HAVING AN INTERMITTENT SPARK PROBLEM ON THIS MOTOR FOR A WHILE. NOW THE # 7 CYLINDER HAS NO SPARK AT ALL. TRIED SWITCHING THE COIL AND EVEN A NEW COIL ON THAT CYL. STILL NO SPARK. ALL OTHER CYLINDERS HAVE GOOD FIRE. PAK ALSO CHECKED OK. WHERE TO LOOK NOW?

 

[seahorse5]

Re: NO SPARK ON 1 CYLINDER

How did you check that pack for output on #7?

 

[Dhadley]

Re: NO SPARK ON 1 CYLINDER

Have you tried switching the packs from side to side? I know you said it checks out OK but...<br /><br />BTW -- and I'm sure you know this so forgive me, remember those packs are wired top 4 and bottom 4. Not side to side like a V6.

 

[TOOSTROKIN]

Re: NO SPARK ON 1 CYLINDER

YES I AM AWARE OF THE WIRING. I TRIED THE PACKS FROM ANOTHER MOTOR. THIS BOAT HAS 2 MOTORS ON IT. STILL NO CHANGE.

 

[Dhadley]

Re: NO SPARK ON 1 CYLINDER

Have you ran the checks on the timer base? <br /><br />Just because I'm curious -- does one of them have a counter rotating powerhead?