We bought this engine in superb condition a couple of weeks ago, we have been out on it a couple of times and has worked beautifully. The last time we went out it would only fire on one cylinder. We swapped the spark plugs round and the same cylinder still did not work so it cannot be the plug...
I recently purchased a Johnson 1967 60 HP outboard. After attempting to start it we realised the spark plugs where not sparking. We were told to take off one of the leads and hold it close to the engine turn over the engine and see if we could see a spark jump to the engine, but we had no luck...