Hey guys I have a 03 yz125. I rebuilt the bottom half and top half ( crank and piston). I got the bike running and idling but I'm just not sure if I did it right. I heard just because it's idling dosent mean it's correct because of adjusting the air screw. Will I'm pretty sure I turned the air screw all the way in then backed it out like 1.5 turns and the I got the bike to idle. I took it on a 5 minute ride, got it in every gear but I only barely hit the power band once. So I'm just curious on what you pros think. Also I found this small piece of metal and I'm just curious if it's something that was just sitting around or if it belongs to the yz125 engine. I'm running one tank of 30:1 the. Back to original 32:1.