Neptune AA1

[RichardMechler]

Greetings, ya’ll!  This is my first antique outboard and I would like to get it running.  So far, I have cleaned under the flywheel and discovered no spark.  Points were corroded so I cleaned them up nicely; still no spark.  I tried to measure the condenser and those measurements didn’t seem to make sense.  I would like to start by replacing the condenser; then go from there.  Here’s what we have:

Neptune

Model-aa1

Serial No.  C224UU

Questions:

My Neptune Model No. is AA1.  I see a lot of AA1-A.  What’s the difference?

My Neptune AA1 motor has a condenser labeled FG471-B.  I bought an Operating Instructions Manual off eBay for Models WC-1 and AA1A, 1.7hp motors thinking that this manual would apply to my motor.  The manual says the part number for the condenser FG-3693.  Is there a difference between the FG471-B and the FG-3693.  Where can I get one?

The skeg at the bottom of the motor has been broken off.  Is there a way to add material back to the skeg?

Thanks in advance!

[Sam M.]

Here are 2 links that might help you:

https://www.leeroysramblings.com/KnuckleNews-MightyMite.html

https://www.aomci.org/forums/topic/identify-neptune-motor/

Sorry, I am no help with your condenser questions, nor have I ever repaired a skeg.

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RichardMechler

[Waunnaboat]

Richard,

I have just private messaged you with a bunch of stuff.

"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."

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RichardMechler

[RichardMechler]

Thanks for the info guys; much appreciated!

Regarding fuel mixture:

These operating instructions call for 1/2 pint Mobil Outboard, or equivalent, (SAE No. 40 Parafin Base Oil) to one gallon REGULAR gasoline.  Mix before pouring into tank.

Could someone define these instructions in modern terms so I don’t burn things up IF we can get spark and get this little guy running again!

[seakaye12]

There are a lot of choices in regards to condensors today.  Some of us are hesitant to use “NOS” condensors even if they are available.

There is an alternative in the form of ceramic caps available through electronics suppliers like Mouser .  There are articles written by Western Reserve Chapter member Bill Mohat that are very informative.

Find them here:

https://wrcoutboards.org/magazine-articles/d.

The image shows how condensor/capacitor technology has changed

[Author]

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