So I decided to re paint my blaster and since I had the motor off the frame I took the head off to see the piston and I noticed that the crank has slack left and right. Not up and down. I had someone say it's okay but then again I feel like I need another opinion. Its not Really bad but at the same time I dont know what's considered bad. this is not a blown up bike. Has very good compression and has a nice piston. The bike runs I just decided to check it out since I have it off the frame. Should I buy new bearings or is the slack normal. Can someone give me a measurement of how much slack is okay IF it is okay. Thanks. Any help will be appreciated