I blew up my 35 year old Yamaha 90hp a couple weeks ago on the Cowlitz. Never gave any sign of impending doom, just wound down like I had eased up on the throttle then conked out. Eventually got it started again but it sounded like it was full of rocks. Good thing I had run upriver from the launch and had a kicker!
Long story short, I lost the #1 piston due to a stuck ring. Tore the motor down and everything aside from that cylinder and the head is in remarkably good shape (guess the previous owner was being honest about the boat never seeing the salt). Looks rebuildable! All the parts I need are readily available, as long as I can get the block checked over.
Next order of business, I learned today that there aren't many machine shops that do work on outboard blocks. I'm just needing a normal bore/hone and probably surface the block deck. Does anyone know of anywhere on the westside that does 2 stroke engine machining?