Came from my 2022.5 Factory 250 in which was my beginner bike. This motor has not seen the track once, all riding was dirt road wheelies and trail riding! After gaining experiences, in the spring of 2023 i engine swapped to a 2023 350SXF in which this has sat ever since.. 54 total hours. Oil & filter changed every 7-10 hours considering i wasn’t racing or pinning the bike. Oil screen cleaned during every oil change it has a brand new screen as well. Air filter was cleaned and re-oiled with No Toil products after every bike wash. Again this was my beginner bike so this thing still runs very great. Last ran July 2024 while testing my Vortex X10 ECU mapped by Tokyo Mods and it was a BEAST. OBO