Advice needed!!!!!
 

I have a 2015 Kawasaki Vulcan Custom 900. Had it for about a year-and-a-half ran great absolutely loved it but now something has changed and it doesn't like to downshift. Have checked all of the adjustments everything seems to be tight and in order cannot figure out what is wrong with my bike shifts up great does not want to downshift hardly at all. Anybody have any opinions or advice I could greatly use the help