115 hp no spark 2 cyl

SigSaurP229

Commander
Joined
Oct 1, 2008
Messages
2,123
Ok tell me if i am on the correct train of thought. I have a 1981 johnson 115 hp

It has been sitting for at minimum 5 years. Mice got under the cowling made a nest and you know the rest from there. I have now gone through and repaired all of the wiring. I soldered and heat shrinked all of the frayed wiring.

Now on to my issue.

I have no spark on the bottom left cylinder.

All of the other three have a big fat blue spark that easily jumps a half inch gap.
Though the top cylinder on that side seems to spark a bit slower (this could be a figment of my imagination though)

I swapped the coils from the right side and still have no spark on that cylinder.

The next thing i have done is swap the power packs. Now i have spark on the bottom right but not on the bottom left.
Does this indicate a failure of that power pack? I would like to know for sure before i drop 100 on another powerpack.

Should I investigate further or is this evidence enough?
 

emdsapmgr

Supreme Mariner
Joined
Dec 9, 2005
Messages
11,551
Re: 115 hp no spark 2 cyl

The swapping of identical power packs is a valid test. Likely you've got a bad pack on what you term is the right side.
 

SigSaurP229

Commander
Joined
Oct 1, 2008
Messages
2,123
Re: 115 hp no spark 2 cyl

Well power pack on its way, hopefully this takes care of the problem
 
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