ok.....bad news on my L134 which I knew was tired. Compression from front to back. 90,85,90,67. Put a small amount of oil in #4 and it came up to 85. This all came about when the motor started to misfire. I did the 6V to 12V conversion and the wires aren't new or the distributor. I was planning on doing a tune up before it started sputtering. Question, will it run somewhat smooth if I do a complete tune up?