Mariner 150hp weak spark on starboard side

[chanter62]

Hi, hope someone can point me in the right direction. I have a Mariner 150 hp it will not idle. Spark tester shows a weak spark on 3 plugs on the starboard side. Thanks for any advice.

 

[faztbullet]

Swap switchbox positions an see if problem follows, if so bad capacitor in switchbox if not bad stator.

 

[chanter62]

Thank you for the reply, the stator was renewed last year. I will try swapping the switchbox

 

[cutter64]

I had the same problem with my 150 XRI changed out both switch boxes problem solved.