I have a 1988 Bayliner with a 2.3 OMC IO and it tries to start but as soon as I release the key it stops. When I put it away last fall and winterized it she ran fine. I installed new points ,rotor and condenser, new plugs but still same problem. I think the same thing happened a long time ago and it was a bad ignition solenoid, could this be the problem? Any way to test it? Thanks for any help.