have had a ´73 xlch since summer of ´05. rode her for two years, then blew the top end out, and when i went to replace it, i was told my flywheel was too loose. i´m just now starting to look around for parts for her. any suggestions for starting an engine rebuild? i had an aftermarker electric start put on her, other than that she´s factory. also 3rd gear misses.