I tried to start my Dixon ZTR 542 today to no avail. The starter Is working fine. I took off the air filter and sprayed carb cleaner into the carb. Tried starting the mower again and it started for a couple seconds. Also tried this with a little fuel. Ran for a few seconds and then died, so I guess I'm getting spark. Fuel delivery issue? There is gas in both tanks. Thanks for any help!