I would check to see if the spark plug is firing first off and if it is ok check the plug wire and make sure there is no damage to it. If that is ok then you probably have a bad coil. You can use a spark plug tester and see if you are getting fire from the coil if not you will need to replace it. If you change the coil be sure to note the air gap between the coil and the flywheel then set the new one to approx. the same distance. Hope this helps.
Answers & Comments
I would check to see if the spark plug is firing first off and if it is ok check the plug wire and make sure there is no damage to it. If that is ok then you probably have a bad coil. You can use a spark plug tester and see if you are getting fire from the coil if not you will need to replace it. If you change the coil be sure to note the air gap between the coil and the flywheel then set the new one to approx. the same distance. Hope this helps.