Q. Common vehicle issues that may create drain on the battery or cause poor starting performance
A. If the bikes charging system is not working properly the battery will be discharged while riding. Using the volt meter check that the charging system output voltage is 13.6V-14.4V at ~2000rpm. See the video for procedure instruction to test your charging system.
If the bike sits for long periods of time it can drain the battery from the bikes electrical parasitic draw.
See the video to test your charging system.