No spark

paulskelator

Recruit
Joined
Mar 27, 2021
Messages
2
I have a 1987 50 hp force engine I found no spark on 1 cylinder cylinder #2 has spark I am assuming it is my coil but not sure
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,050
You try swapping the coils around?
These coils can be bad but in all the years I've worked on these
motors, I've only found a couple to be bad.
The trigger has very thin wires that breaks under the shrink wrap at the connector, try gently tugging on the wire and see if it comes apart.
outboardignition.com has test procedures for your motor.
You'll be able to do basic tests with just an analog meter.
The more advanced tests will require a meter with a DVA or Peak Reading function.
Do the tests and get back, compression ok?
 

Redbarron%%

Chief Petty Officer
Joined
Dec 7, 2017
Messages
479
You could (I think) try a spark tester on the top plug after swapping the trigger from #2 to #1, perhaps. If it sparked on the #2 and not the #1 you would have your answer as to trigger.
Please note - I have no experience on this engine, but I assume you could try this.
I often test for spark using an inductive timing light and if there is the current to fire a plug it will fire the light.
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,050
Very rare the trigger is bad.
The leads from the trigger might be the problem (see my previous post) but not the actual trigger.
The stator would be my guess if the coils check ok??
UPDATE!!
I gave you test things for a motor with Prestolite ignition.
IF???? you have a points ignition??? then the points would be the problem.
They probably need the points filed.
These coils on the points ignition do go bad, again not often and they can crack and look bad but still work.
 
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