Here is the problem:
Bought new in 2008
X300 w/42" deck is running rough. It starts fine, and then when I go to engage the blades it stalls about 65-70% of the time.
But once I get the blades engaged it seems to run fine for about half the lawn (1 Acre).
Then when half the lawn is done it starts to run rough, almost like there is water in the gas.
Also, while mowing the lawn if I have to reverse and the PTO/blades shut off, as soon as I go to engage them it stalls and then It doesn't want to start.
I can get it to start with a metric ton of choke, and by turning it over for ever (shortening the life of my starter), so usually I let it sit and cool down for 30 minutes. Then it starts right up.
If I attempt to mow tall grass it bogs down, and starts to run rough. It smells as if she is running rich when this happens.
Things I have done to try to fix the problem:
Changed Fuel filter
Air filter is whistle clean (Changed late last year)
Cleaned gas cap, and made sure it had airflow through the pinhole
Used an air compressor to clean all the fuel lines of obstruction (None was found).
Bought some carburetor cleaner, and cleaned the dickens out of the carburetor. (Did not break it down).
Took apart the fuel pump and cleaned the dickens out of that as well.
But I am still having the problems.
At this point I am at a loss as to what i can do. It is very frustrating, as I really do not have the money to be able to afford servicing by the JD dealer.