My Craftsman Lawn Tractor (917.275702, 24 HP, 48" deck, electric start,
automatic trans), is now 6 years old.
Today in the middle of mowing my 1 acre, I noticed the transmission getting
sluggish, more and more so. I'm 90% done cutting the grass, but it barely
moves and I cannot finish mowing with the tractor.
I occasionally tried to disengage the transmission then bleed air by moving
the gear shift forward and back several times, but no improvement.
The manual indicates it could be just about anything: too much grass under
mower, dirty air filter, dirty oil, faulty spark plug, dirty fuel filter,
stale/dirty fuel, water in fuel, loose spark plug wire, dirty/clogged
muffler, loose wiring, carb out of adjustment, or engine valves out of
adjustment, or motion drive belt.
The engine sounds fine.
Based on experience, can someone point toward a specific issue? Can the
transmission itself be shot? The manual didn't show this, but did suggest
all of the above possibilities.