((Always remember to cut the fuel off)) . Cut off the fuel, take out the plug and kick it several times to clear the cylinder, clean the plug and put it back in. After you make sure that the expansion chamber is not full of water from sitting out in the rain and that the kill switch is not somehow bad and that there is no water in the carb, turn the gas back on, choke it and try it. I have had some one pull me up the road using an atv before to get a bike started by putting it 3rd and letting out on the clutch and just letting it go until every thing cleared and finally fired.