on my downtown 300 i 2011 89,000 Km.s about 55,000 miles,. I would have had a 10 year Warrente to be able to use it, so my own work on the scooter was OK,. now on my Piaggio b v 350 2016 model I used the War. once for a collapsed gas tank , the Evap system plugged ?took 3 months for the new tank to get here in Canada,. and when it came in the dealer could not do the repair for 3 months because of new sales booked the service Dept. up, for that time, so I took the tank home and did it my-self, 3 hours later I went for a ride, with no Evap system, not needed here in Canada,. from what I can make out only in Cal. it is required,. I will be doing my second valve check this fall, and it is easy to do change a disc. like the big bikes motors, got the right disc from a Kawi dealer,. mods I have done are installed top box. with running lites brake lites and turn signals, with a flat 5 trailor plug, then I installed a Malossi variator with new spring in the clutch., just like Robot from scooter west., it was nice to see how,. now I just added spot lites to lite up the road at nite, next thing is to adjust the low beam , and high beam head light, as they are tied to gether, and when you adjust low beam it changes the high beam, and if you change high beam it changes the low beam, so I have to rig up a stand to hold the head light off the scooter, and adjust the two beams at the same time, as the high beam screw is hidden when on the scooter,.