For used I would post in the Parts Wanted section of Scream & Fly forums: http://www.screamandfly.com/forum.php . New, call your local Yamaha Outboard dealer like Complete Marine in Phoenix: 480-966-1595 to at least get an idea of what the cost is for new. Hopefully someone on here has a hookup for Yammy parts and they will post when they get home from the holiday.