What is the source of air for the air horn on my 353? I'm assuming it's a replaceable air can but where is it located? I've never been able to find it.

Inside the port gunwale there is a compressor and horn. It is in between the storage compartment and the rear bulkhead. The compressor is probably ok, it's usually the horn it self. Mine was metal, I replaced it with a plastic one. Did the compressor while I was at it too. It's a real PIA. Good luck.

Dave

bugs nest was in mine cleaned it, installed a screen

Thanks Dave! Mine works just fine, it kinda scared the sh*t outta me when I hit the horn for the first time. I wasnt expecting it to be that loud. Thanks for the info!