i have a 6500 DPG Generator. was purchsed about five years ago. Has been in storage. Never used. three weeks ago I put fuel and oil. Started right up. Ran for about eight hours. noticed the recoil crank was losse. after looking it over it seems to have had some rubber bushings behind the bolts. looks like they melted off. Where can i find out what exactuly needs to be done to fix my problem?