" I just got a used pontoon bo
" I just got a used pontoon boat with a 50 johnson on it. The model is 50ESL74M. Sometimes, seems to be only cold, it will not start. It has no spark.The motor came with a 1972 service manual and a 1974 parts catalog. When comparing the two the ignition systems appear the same so I am using it for troubleshooting and specs. Signal, charge, and ignition coils checked out OK as well as all grounds and connections. When this motor runs it sounds great. After working on it late afternoon it started and ran fine. Later in the evening nothing again. I thought about the sun shining and warming it up so I heated the powerpack with a hair-drier for approx 15 Seconds and it fired right up. I used to use this trick in reverse to find bad modules on cars. I was able to do it again the next morning(no spark-heat it up-great spark). I am new to outboards and know better than to assume but does this sound like a bad powerpack? Are there any other tests I can do? If it is the pack and I change it will it affect the timing? Thanks for any help!! "
" I just got a used pontoon boat with a 50 johnson on it. The model is 50ESL74M. Sometimes, seems to be only cold, it will not start. It has no spark.The motor came with a 1972 service manual and a 1974 parts catalog. When comparing the two the ignition systems appear the same so I am using it for troubleshooting and specs. Signal, charge, and ignition coils checked out OK as well as all grounds and connections. When this motor runs it sounds great. After working on it late afternoon it started and ran fine. Later in the evening nothing again. I thought about the sun shining and warming it up so I heated the powerpack with a hair-drier for approx 15 Seconds and it fired right up. I used to use this trick in reverse to find bad modules on cars. I was able to do it again the next morning(no spark-heat it up-great spark). I am new to outboards and know better than to assume but does this sound like a bad powerpack? Are there any other tests I can do? If it is the pack and I change it will it affect the timing? Thanks for any help!! "