i have a 2011 450f i got it for christmas, it was a decent deal at $4k and we talked him down to $2.5k. he said he traded a built race quad, he said it was rebuilt and had a higher compression kit on it when he traded it. the bike came with KYB front suspension and i’m not sure about the back, a rekluss clutch kit, and levers. that’s all that i know is done to it. i have noticed the clutch acting a little funny when on the stand in gear, but i also have been riding for almost a year now and im not to experienced with the mechanical side all i can do is ride good lol. any tips on what to check and maintenance tips are super appreciated. thank you.