I keep thinking about installing the 170cc performance kit on the Scarabeo 150. The stock engine, though, is a tough little bugger from what I've read and also experienced over the 5300 miles I've ridden this summer. I'm afraid that installing the performance parts, maybe even the hotter cam, will degrade the reliability of the machine, at least its longevity. Should I be worrying about this? My gut feeling is that I should.