I need help! I have a 1979 Johnson Javelin 100 Hp (100tlr79s) that no matter what I do it will not get above 4000 rpm at wot. Spark on all cylinders will clear a 7/16 air gap with blue spark.
Compression is as follows...
#1 120
#2 119
#3 119
#4 120
Here's what has been done so far...
1. Total...