My guess is you used gas containing ethanol and its gummed up the carburetor.
But first try standard troubleshooting procedures. Check for spark (using a spark tester) and check for fuel problems by spraying starting either into the air intake. (If it runs, even only a couple of seconds, it's a gummed up carb.)
If it's a gummed up carb, you can sometimes get the clogs to dissolve by adding SeaFoam to the gas (I usually go heavy) and run (or try to run) to pull the gas and SeaFosm into the carb. Then let it sit for a couple of days (the longer he better, but dont expect more after a week.) The SeaFoam will slowly dissolve the gunk. It this doesn't work, you will have pull the carb and use carb cleaner. (Or you can take it to your dealer and pay him to do it. They have special devices, such as an ultrasonic cleaner that can dissolve clogs.)
Answers & Comments
My guess is you used gas containing ethanol and its gummed up the carburetor.
But first try standard troubleshooting procedures. Check for spark (using a spark tester) and check for fuel problems by spraying starting either into the air intake. (If it runs, even only a couple of seconds, it's a gummed up carb.)
If it's a gummed up carb, you can sometimes get the clogs to dissolve by adding SeaFoam to the gas (I usually go heavy) and run (or try to run) to pull the gas and SeaFosm into the carb. Then let it sit for a couple of days (the longer he better, but dont expect more after a week.) The SeaFoam will slowly dissolve the gunk. It this doesn't work, you will have pull the carb and use carb cleaner. (Or you can take it to your dealer and pay him to do it. They have special devices, such as an ultrasonic cleaner that can dissolve clogs.)