J Boats Annapolis My Kayak Rack System (Yakima) Has J Bars. I Am Small Woman. J Bars Move When I Try To Lift Boat. Any Ideas?

My kayak rack system (Yakima) has J bars. I am small woman. J bars move when I try to lift boat. Any ideas? - j boats annapolis

I try to draw the bars, but every time the kayak bumps in the bar, the leveling off. Should I a different media type, easier to manage? I carry 2 kayaks that weigh about 35 pounds each. Thanks