before spraying any type of cleaners , read the warning labels , think the brake cleaner , has one warning you need to really look at , melts plastics ... when I went through my 2012 , I used " mean green " degreaser , did a nice job , sprayed the area couple of times and whole lot easier to work on .... ( now lets look again at the leak on yours ! -----> have you changed the oil ,or anyone changed the oil for you ? you might have the missing " crush ring " missing on the drain plug , --or-- the seal in the oil filter might have been damaged ) take another photo of the side area where the leak is located --- photo of your cycle with skin off --- a close up of where the leak looks like it is coming from , and we all can give some sort of ed-u-macaded guess at what might be happening ! ( I went the easiest problem for you first , just hope is isn`t the drive gear that is on that side of your engine , a thread on the report of metal shavings and metal flakes will be seen in your oil drippings , this will say a lot " about where your problem will be " if you have this in the oil drippings that is ... waiting on those other photos ---- good luck brother