Thank you everyone for the suggestions. I had not found the yanmar site before, I will have to do more research there as well thanks!
I complete agree with batteries being suspect. I also tested with a "known good" battery from my pickup. I have not tried two batteries, maybe that will be the next test.
Thanks also for the suggestions about the engine being seized. Thankfully the engine spins smooth with the hand crank (and the compression lever open of course). No salt water sitting in the engine all winter either, I drained all water from the engine before putting her to bed for the winter. Lake Ontario water might even be worse then salt water ;-)
I'll keep at it and keep everyone up to date on what I find. Thanks again for the assistance. I'm at the point where I will probably do the smart thing and seek a professional to take a look.