Link to video review of crankshaft https://cloud.mail.ru/public/MkhG/jLTddGX5H Crankshaft IZH 49 in the normal state ,set and go, the bearings on the axles in good condition without backlash, the backlash of the connecting rod up and down is 0.5-1 mm , which is within the normal range, the backlash is the left to the right, the photo shows the end position of the connecting rod to the left and right at TDC and BDC, look at the video review the diameter of the sleeve connecting rod 15mm(14mm nominal), if you have questions write messages, just go to my ads there is a lot of motorcycle parts