Well, it's been awhile....
It's a 2003 TRX350FE according to the sticker on the front sub-frame.
I gave it a good scrub and it looks ok.
My list looks like this so far:
1. Battery status. When I got it, I was told the battery was almost new. The battery certainly had juice to start it everytime I tried for the first couple months. Sitting all this time now however, it's not so new so it's on the charger and we'll see if that can be resurrected. Battery Tender Jr on order as a good measure for either this battery or a replacement.
2. The carb needs to be rebuilt or at minimum cleaned. If I leave the petcock "ON", I get a fuel drip, so I'm guessing the float is probably stuck open. A good cleaning hopefully will take care of this. If not, is there a preferred replacement "plug&play" carb people use to swap out the stocker? Turning the petcock "OFF" stops the drip.
3. Airbox has either oil or fuel in the bottom of it. Haven't stuck my finger in there yet. Are these an oil bath airbox or is that fluid (either one) not supposed to be there? And if not, what's a good cause of why it's there?
4. Shifting was what I'd call somewhat problematic when I first got it. I'm thinking I just want to get it running dependably first then address this aspect.
5. Tires are shot so I'll need a full set. At the moment it's got Bridgestone Dirt Hooks. I've tried to find those again but am not having much luck. Any suggestions on a tire that's about the same profile as these? This will be used primarily on a 26 acre mostly grassy field for landscape maintenance. Nothing super aggressive is required.
6. The choke cable is not affixed well on the little holding bracket on the left barset. Need to figure out how that's affixed and address it.
7. Rear stop/tail light lens is broken so that'll need replacement.
Any thoughts on my project questions would be much appreciated.
The 350's were horrible about carb floats not sealing. Aftermarket carbs are a crapshoot, and the overwhelming majority of them are crap. I would rebuild the one you have. I took a small dremel polishing stone and polished the seat in mine and it stopped leaking.
Airbox probably has fuel in it. Make sure the carb didn't overflow a bunch of gas into your crankcase.
Shifting on an ES can be iffy battery, clutch adjustment, or you might need to remove the shift motor on the front of the engine and clean the old grease out of the gears under it, and then replace it. The grease gets old and gummy and can cause shifting issues. If you're not sure the battery is good, replace it. The ES bikes need a good battery to shift.
Choke cable is probably broken. They break where they attach to the handlebar bracket. New ones are under $10 so just replace it.
I rebuilt a 350 for my kid. There are some bolt on upgrades using factory parts from other bikes that are worth doing if you're going to be riding it much. Disc brakes from a 420 Rancher and selectable 4wd using a front diff from a 400AT Rancher.
I would look for a set of stock Foreman takeoffs on your local craigslist or Facebook marketplace. People sell new factory wheels and tires for $100-200 all the time when they buy a new bike, because they want fancy wheels and mud tires, and if you get Foreman wheels they will be 12" wheels and finding tires in the future will be much easier