Not having worked on mercs
 

randlemanboater

Could be the power pack for that bank of cylinders.

Does that thing have 2 regulators or powerpacks that are controlled by the stator?
If so and if the part numbers are identical, swap them around and see if the spark problem moves to the other side.

i hate to say this but if i was you the good thing is its not working so it would be easy to find the bad thing is i think you should take it to a marine shop and let them diagnose it for you unless you can diagnos the stator yourself i replaced mine 3 times or the marine shop did it you need special tools also it would be garranteed by them could be a bunch of things

I would reccomend you wait for Bigshrimpin to pop in. He sold me some MERC parts for one of mine a couple weeks ago. Plus he knows the MERCS. The bare minumum though you need a peak reading volt meter, or a DVA with a PRV adapter from CDI.

Sure sounds like a bad switchbox to me. No spark on one side is almost a dead give away. Make sure they are both grounded. If you 100% positive that your didn't make a mistake swapping them . . . then There is a test for the trigger and stator in the manual using a multimeter . . . You won't have to pull the flywheel to test them . . . just disconnect them from the switchboxes and check for continuity . . . specs are in the manual. If you need me to scan some pages . . . . I can do it. I have TONS of 9/16amp merc parts, so don't go buying anything new. I have 30+ switchboxes and several stators and triggers for that engine.

How's the wiring (harness to coils, trigger wires, stator wires)?

boxes sounds good, still sounds like the stator. it probably isnt the trigger because that usually would give you two dead cyl, one on each bank. and if you still want to be sure bring it to a shop and tell them you want them to put their meter on the yellow wires tell you what they find. they probably wont charge more than 50 dollars.

bigshrimp, im going to try this in that link you sent me

I'm a bit confused. does this mean i leave the whites and black/yellow stripe alone on both switchboxes. and switch the reds and blues between the 2 switchboxes?

If thats what there telling me to do it seems easy enough. i just want to make sure 1st. thanks again.

sounds right, what they want you to do is swap the leads comming from the stator around from one side to another.

i switched the leads from the stator on the switch boxes now the starboard has the spark and the port doesnt. following that website i disconnected the rectifier. taped off the wires going into it and rechecked everything. one bank of cylinders still isn't getting spark, so now i believe it has to be the stator. bigshrimp i'm interested in buying one off you depending on how hard it is to replace myself.

it isnt hard but you need the special flywheel removal tool.