I have a Craftsman 4200 Lawn tractor that I can't get started. I have fresh gas in it, have checked the spark plugs and have spark, fuel lines are all flowing, pump works. I think that the problem is in the carb but can't figure out how to get to it to see if it's plugged. Any suggestions? Anything else I should be looking for? I have poured gas into the carb and can get it to run for about 10 seconds. That's it. Any help would be greatly appreciated.

Thanks.

Remove the carb bowl and see if you have any trash or water in the carb.