1979 Johnson 55 hp

[dan09]

I have a 1979 johnson 55 outboard that starts and idles great just can't get it about 2000rpm. I just ordered the shop Manual to make sure everything is adjusted properly. I did notice the last owner was running the wrong fuel to oil ration 32:1 when it should be 50:1. Is there anything I can try until I get the shop manual in. Compression was about 150 on both cylinders and fuel pump was just replaced.

 

[racerone]

They run surprisingly well on 1 cylinder.----Does spark jump a gap of at least 3/8" on both leads ?

 

[dan09]

They run surprisingly well on 1 cylinder.----Does spark jump a gap of at least 3/8" on both leads ?

Haven't checked spark plugs yet. Previous owner said they just changed them. I'll look into that. How would I check to see if it's jumping the gap on both leads?

 

[3rdMarDiv]

Racerone put the same question to me and I picked up Lisle 20700 Coil-On tester that allows for testing spark and coil strength. Comes with instruction and you can YouTube it. Quality piece of equipment 17 dollars on Amazon.

This is set at just over 3/8"