So my 2013 has 4500 miles , I got the bike at 700 miles. It was a repossession . I lost the receipts he had and stuff under the seat when the bike was stollen . I just did an oil change, ever since I've got the bike it has been rather noisy and shaky sounding from the engine . It had its first oil change from what I believe is right after I got it at about 800 miles. A little late . I'm sure it didn't hurt it. Then I used royal purple 5w30 in it . I also assume it has never had the valve clearance . The bike runs fine lately it's been a little noisier . Right now it has Roetella 15w 40 and its been a few days running the thicket oil , this Saturday I'm going to do another change with motul. The bike sat for a while when it was stollen and after it was recovered . The question is should I dig into the valves tonight ? And do the valves often not come spec. It has a MGP full exhaust system . Not sure if they adjusted the valves when the exhaust was installed. Have any of you guys never checked your valves ?