I am going to look at a 96 Evinrude 15hp to purchase. It is being sold with a jon boat & trailer. Problem is the owner indicates the motor runs great, but when last taken out, about 2 weeks ago, the pull cord wouldn't retract. The whole rig looks very clean & well maintained. Is there a way to retract the cord so that atleast I could try to hear it run/turn over? Anything else I could do? Thanks for your help...