I bought my 3206 new from my dealer 13 years ago now. It looks just exactly like it did when I brought it home, and has never spent the first night outside. Runs perfectly. Applied pledge furniture polish, flies will break their legs trying to land on her. Have had my dealer do routine service if I couldn't get to it but otherwise I've handled it myself.
Love the hydraulics, differential lock, looks, handling, and sheer power. She's a beast and a good looking one at that. One of the posts refers to a hydraulic leak, one thing you'll want to check is the very delicate o-rings where the hydraulic tubes attach at the top of the valve body. If over-tightened fluid will slowly ooze there and work it's way down the sides of the valve body to the transmission & rear end assembly below, it will make a slow drip mess and generally cover the whole area with dust & fluid grease mess, making it almost impossible to figure out where it's coming from, that little bitty O ring way up at the top.
Another thing the same post mentioned was the engine continuing to "diesel" as we call it after he shut of the ignition, this is caused by simply not running the engine throttle up fast enough when shutting down. It's very important NOT to have the engine running at a slow idle when shutting down; keep the throttle up at least half way or even more when shutting her down, this way the engine is running fast enough to burn more efficiently the last bit of gas that it got from the carb just before you shut it off.
Well I can't say enough how happy I've been and will continue to be with my 3206! Something I've enjoyed lately is that I've replaced the headlight bulbs with a pair of 7.5W LED lights, much brighter and far lower wattage.
I also added 2 10W LED work lights on the back plus 2 10W LED work lights on front. I used a pair of light mounts for a Jeep, the angle worked perfect for the slope of the Cub's front. Man, does this beast light up the night now, I can mow or work till I'm good and ready to quit now, without having to worry about getting done while it's still light outside!