John Deere 320x carb problem

[robdeb]

Three weeks ago went to use mower and found gas in oil.Drained oil; checked gas solenoid shut off valve and working properly. cleaned carb with spray cleaner and started with choke at 85% white smoke in the beginning but would clear up with continuous choke.. Decided to take carb off again and look for any other problem.Cleaned again ,put back together and now will not start at all with choke or starting flood, now backfiring. What am I overlooking. Any suggestions

 

[pile81]

I've seen the fuel pump on that exact mower leak fuel into the crank case, so u may wanna check that out.....

 

[robdeb]

Thanks for the help will check out fuel pump. Got any idea what i've done wrong on carb. Going to pull off one more time after church and make sure all needles are seating. Too much fuel in carb - float seems to be working, Thanks again