Thats a great place to start. If you don't do preventative maintenance like tune-ups along with other things, you will greatly reduce the reliability of your bike. Pull your plugs and match them for wear condition using this chart-
http://hawkworks.net/sparkplug-chart/
If it looks like any condition besides normal or worn, you need to find out what is causing it and the hint is in the description in the chart. When you're done with that, post back here.