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Recently I got a JW10 and CD12 for $100. The owner stated I had to take the Neptune and the 1959 Elgin 2hp to seal the deal. He had been having the motors since he was a young teenager. The motor belong to his grandfather and father. Over the years he has taking them along to where ever he moved. He just didn’t want to let them go. Recently has said that he realized that he was doing the motors a unkindness, because he has not run them in greater than 25yrs. They looked like they have been outside and in tangle of bushes for years. They have dry vines in very unusual places.The motor that I am looking at right now is 1948 to 1951 Neptune 1.7hp model A1. It was not stuck but it has been neglected.
Compression 95psi
Now have great spark after cleaning and servicing the ignition system.
Carburetor is now clean after removing tons of mud dauber nest.
New float using a modified Mercury float. (Works great)quote :
Problem: It will only start and run out of the barrel.
– High speed set at 3/4 turn out and slow/idle needle at 3/4 turns out.
– Using 16:1 fuel oil ratio
– cleaned the carburetor and all the lines. Good flow through the fuel line.
– the reeds valves had some rust on them, so I gently cleaned them with a soft brush and dremel. ( I may need new reeds)
– There is no rust inside the crankcase or inside the cylinder.
– I have not removed the power head to assess the exhaust leg to see if it is partially obstructed.I am thinking either the reeds are damaged or the there is some type of obstruction on the exhaust side preventing good flow through the crankcase. It easily starts and runs on the stand out of the water, but once it is in the water it will not start. I think water pressure is creating enough resistance to prevent starting and running.
I am wondering if you gentleman think I am on the right path?
Oh, here are some pictures.
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