Gentlemen,
THANK YOU!
All great answers.
I ride an assortment of bikes & whenever I get a Motorcycle (versus a Scooter), because I ride very fast & live in California & can lane split the first thing I do is replace the stock exhausts with a brand called IXIL, from Spain - when you use your horn to warn someone, it's too late.
This is such an excellent forum with "no bullsh** answers" that are also well presented & researched.
I just lost 25 pounds which is probably the biggest improvement* - next will be the Sliders/Pulleys route when it's time to change then out.
*reaching 58 years old versus 15 (I still feel 12), helps me objectify what's between my legs ie; it's a 4 stroke scooter, which allows me to deliver marketing flyers every now & again with one hand free, turn the key on, bike starts everytime, performs flawlessly everytime which is suddenly 5 decades later, just enough for me.
*at 58 I suffer from the Disease called "now I own it, what can I do to make it mine" aka "how can I complicate my Life more"