I am trying to find out how to reinstall the starter spring on a 1970 Johnson 9.5 model 9R-70C. I had to remove the whole assembly to replace the gasket Part#309696 and can't figure out how to retighten the spring so that the rope winds back up. Do I need to remove the roll pin so that I can tighten the spring? If so how do I remove it because it is extremely tight. Any advice on reinstalling the assembly would be greatly appreciated.