And problem number 3. The timing chain tensioner from the tu/xf is not the same diameter or length so it does not fit the gn250 cylinder. Two ways you can solve this problem. If you search eBay for Suzuki chain tensioners there is a fully adjustable chain tensioner you can use. Or you can do what I did. I took a piece of steel plate. Used the gasket and traced out the bolt holes and center area. Cut and drilled the plate. Got a long bolt and matching but. Drilled a hole in the center and welded the nut to the plate. Its a long bolt so it has plenty of adjustment. I ran it down till it contacted the guide then loosend a quarter turn. IMG_20151021_171352_640.jpg