If you are getting a little complacent, maybe a little sleepy, which you should never do on two wheels, the Suzy will give you a little nudge with that ka-POW! It's just clearing its throat ... reminding you that you are piloting a motorcycle. All the one-lungers do it and have for years. I bought my 2006 S40 a month ago, returning to a bike after 30 years. First time it backfired under my butt, I thought I was going to have to wring out my pants. I laughed for the next quarter mile. The bang brought back some good memories.

Maybe I will try the harley stuff - sounds easy to apply - if i can get myself past my prejudice enough to go into a shop  LO