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- Sat Dec 10, 2022 12:28 pm
- Forum: The Boatshed
- Topic: Mercury 50 Intermittent Spark. Help!
- Replies: 1
- Views: 5642
Mercury 50 Intermittent Spark. Help!
Hi, I have a 1978 Mercury 50 4 Cyl 2 stroke, (I believe to be a "Thunderbolt") However I have had consistent issues of inconsistent spark on The top 2 cylinders (Usually the top two are the ones causing trouble but occasionally the bottom two play up as well.) I started by replacing the Spark plugs ...