under the carb there will be a fuel bowl which can be removed or it will have e bleed screw.Either remove the bowl or screw or bowl you might have some dirt inside which is preventing the fuel float from working correctly.
kevin
November 2008
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix lawn mowers.