Does anybody know where the opening on motor is to check for Top Dead Center when doing a valve clearance check on the Ozark? I have the clearances for the intake (.001-.003) and exhaust (.003-.005) just need to know where the TDC opening is. I have a service manual on back order at the local dealership, don't know when that will ever come in. I have gone through the break-in period on my bike and would like to check the clearances.