Hello all, this is my first post!
I'm having an issue with my John Deere X300 riding mower. The spark plugs are constantly fouling (black carbon deposits on them) after a few uses. From what I've read, this means the carburetor is running hot. I've tried switching to a higher temperature rated spark plug, but it still happens. I looked in the user manual, but it says that the carburetor can't be adjusted and would need to be serviced at a local dealer. Since my dealer is a long ways away and I don't have a trailer to haul it in, I was wondering if anyone knows how to properly adjust the carburetor. I can't find a technical service manual for free online, and I'm not really sure where the adjusting screws are.
I would be very grateful for any help!