ok I took the bowl off of the carb and pulled the float and needle assembly out and it was all gummed up. I thoroughly cleaned the carb with carb cleaner and cleaned off the float, got it all put back together, pull started it , with a little starting fluid in the carb and it fired up, but i broke the pull string with that last pull, and the switch was off so it didnt stay running, my bad. So now i cannot do anything with it until i replace that pull string. HOw difficult is it as far as what all has to come off the motor in order to change that pull string? thanks for any more help.