Another ‘No Spark’ questione

[Merccoper]

So I’m continuing my search for the no spark issue on my 1996 40 hp 4 cylinder mariner magnum electric start. I say “continuing” because I did the tests with an unpredictable meter the first time. Anyhow, this is the summary:

No spark on any cylinder
Stator ohm’s tests ok
Trigger ohm’s tests ok
Ignition coil ohm’s tests ok
Ignition key switch tests ok
There is no Mercury tilt stop switch (that I can tell!)

So....I don’t have a DVA to do the voltage tests. But, from the tests above, am I safe to say that it is the switch box? Could it be anything else?
Thanks!

 

[BWR1953]

Is there a kill switch?

 

[Merccoper]

Is there a kill switch?

Nope, no kill switch (I knew I was forgetting to mention something else in my post)

 

[Chris1956]

Disconnect the kill wires at the switchbox to be sure those are not inadvertently grounded by rubbing against the cowling or engine.

 

[Merccoper]

Disconnect the kill wires at the switchbox to be sure those are not inadvertently grounded by rubbing against the cowling or engine.

Thanks for the input Chris. There isn’t a kill switch on this model (unless I’m missing something)

 

[Faztbullet]

Take the blk/yel wire off switchbox and check for spark...

 

[Merccoper]

Take the blk/yel wire off switchbox and check for spark...

Thanks for the additional diagnostic. The are two black/yellow wire on the same post. When I remove them, should I keep them together or should I separate them?
Thanks again for your help!

 

[Merccoper]

Thanks for the additional diagnostic. The are two black/yellow wire on the same post. When I remove them, should I keep them together or should I separate them?
Thanks again for your help!

Ok, I disconnected the wires from the switch box and tested for spark. No spark when they are connected together or not.

 

[Merccoper]

I have ordered a new switch box. Fingers crossed this is the issue!

 

[Merccoper]

So I’m continuing my search for the no spark issue on my 1996 40 hp 4 cylinder mariner magnum electric start. I say “continuing” because I did the tests with an unpredictable meter the first time. Anyhow, this is the summary:

No spark on any cylinder
Stator ohm’s tests ok
Trigger ohm’s tests ok
Ignition coil ohm’s tests ok
Ignition key switch tests ok
There is no Mercury tilt stop switch (that I can tell!)

So....I don’t have a DVA to do the voltage tests. But, from the tests above, am I safe to say that it is the switch box? Could it be anything else?
Thanks!

I’m back!
So I installed the new switch box but still no spark.
Any other suggestions? This is driving me nuts!