evinrude 235 84 model when full thodel trips alarm

[Blue_Runner]

Jboyd, welcome to the site.

I don't consider myself an expert at all but I see a few things in your post that stick out to me.

One is I'm pretty sure 93 octane does not do anything to help a 2 stroke outboard engine. Second, you mentioned a new water pump in '04. If it hasn't bee run much since then it might still be ok, but I think the general rule of thumb is changing the impeller every 2 - 3 years to be safe (esp with salt use).

Hold tight....help is coming! Also best of luck on getting that horn to stop sounding.

Blue