In adition to all the good info mentioned by the other bolters, re-set your points befor you set the timeing. Changing the points will change the timing but changing the timing will not change the point setting. If the timing was set and you then adjust the points, the timing will be off and need to be re-set again.
Step by step in the proper order and you will have it running smooth again in no time cool

There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!