1986 evinrude E110TLCDF miss firing when warm.

[Saen]

I just bought this boat and motor knowing the motor had problems and has had minimal to no maintenance
The boat has the VRO disconnected and previous owner was pre mixing. Compression was around 100psi across cylinders.

1. Bad rectifier/regulator as seen by battery not charging and Tach not working.
2. Intermintent no spark on cylinder 2
3. Motor missfires looses power at WOT


I got a good deal on the boat and engine so I decided to throw some parts at it.
So far I cleaned the carbs , Replaced Rectifier , Replaced Stator , Replaced Timer base ,Replaced power packs. With all new components

Now the engine will start, idle well and accelerate well on the warm up lever running on the hose.
After 15 minutes of running and it warms up with the cowling on , it will begin to missfire and sneeze /cough excessively

Im finding it difficult to see weak spark or dropped spark on my spark tester.


Am i missing anything?

Coil Packs?

thanks in advance

 

[racerone]

Throwing parts at one of those is an expensive way to find the problem.--------Compression is too low.----Running on a hose proves nothing !

 

[Saen]

Thanks for your concerm for my finances. Not sure how 100psi is too low to run and be useable. Not sure what I was trying to prove with the hose,