Hello guys ! This is my first motorized bike build The bike i am installing this project on is a Roadmaster Mt. Climber. The Chinese engine kit i am using is Iglobalbuy 80CC Petrol Gas Motor Bicycle Engine Complete Kit. It ran awesome with the original chain tensioner until it dented the hell out of the tensioner. So i tried to run it without the tensioner and Its one link too tight and one link too loose, so i tried to install a half link and it was still just a bit too tight, im looking for any ideas anybody has out there to get my chain issues solved and off to the races!