Mtd pro 808h lawn tractor - Garden

SOURCE: how to remove rear wheel of lawn tractor

You should be able to remove the bolt from the center with a 1/2" socket an slide it off the axle. You do not want to do any heavy hammering on the wheel because you could possibly drive the axle out of the transmission. MTD mowers are notorious for being hard to get the rear wheels off. If you do get them off or ever buy a new one, remove the rear wheels and coat the axles with anti-seize compound. Good luck

SOURCE: MTD Lawn Tractor: Constantly shredding deck belt...

I have the exact same model MTD tractor with same problem. It began when the bolt that extends through the idler arm assembly broke and subsequently damaged the pulley. Upon examination of the broken bolt, I found that the threaded end that extends below the deck is significantly smaller that the rest of the bolt. I got a larger bolt with the same size threads, bored out the hole through the deck and it made the whole idler assembly much stronger. the deck still has some vibration and some unusual belt harmonics, but it appears to be working. Compared to most other tractors of this size, this deck is very complicated.

SOURCE: yard man mtd 20hp 46

go to the online web site for the yardman this will give you the guide on how to replace the belt.

SOURCE: MTD lawn tractor. 16 hp twin briggs straton

THIS SOUNDS LIKE A THROTTLE CABLE LINKAGE PROBLEM.WITH THE HOOD OPEN AND MOTOR RUNNING RUN YOUR THOTTLE UP AND DOWN WHILE LOOKING @ THE LEFT SIDE OF THE MOTOR TO SEE IF THE CABLE IS FROZEN IN PLACE OR BROKE OR DISCONNECTED .HOPE THIS HELPS

SOURCE: Lowe's MTD 1997 lawn tractor -sat about 3 years,

Sounds like it is locked up. Could be rust in cyl. or liquid lock from gas, remove the spark pulg and see if it will turn. Try to turn by hand or use a wrinch on the main nut on top. If you suspect rust, remove the spark plug and spray wd 40 in there for a day, try to turn with wrinch back and forth. till you free it up. it may burn a little oil but she should still run. You will need to clean the carb it will be gummed up, no doubt with rust or old gas (old gas turns to varnish in about 3-4 months). if it has sat outside it will rust the cylinder thru the muffler thru the exhaust valve if open,  moisture finds away.