3 cylinder Frisco Standard marine engine “potatoes” like it should

This is a 30 horsepower Standard Gas Engine built in San Francisco around 1910. I restored this 3 cylinder engine about 15 years ago but could never get it to run smooth, so I gave up. My son and grandson were determined to get it to run right and spent some time last winter tweaking and came up with this result. God, I love’um!