I bought the 186 kit from DH motors which came with a Morin oil cooler. Only problem is that the lines won’t bolt to the cylinder. I tightened them down with two copper washers and the lines are still loose. Seems pretty simple to connect so I don’t understand why I would be having this issue. I can thread the bolts in until they get tight by hand and the bent ends are on the cylinder like they should be. Any help would be great.