Bman, cut and thread a 3" piece of plumbing pipe to fit the flywheel's outside threads. Buy a hard-grade bolt that matches the inside threads, along with 3 thick, stout washers. Therad the pipe inot your flywheel. Put the bolt thru the washers and pipe, into your flywheel. Tighten bolt slowly. Your flywheel will be drawn off. This type tool works for bearings, seals, stuck axles, etc.
**Word of caution on the Yammie; I have often spent more $$ in the long run fixing up a
bargain" bike than I have on other newer, cleaner bikes, b/c parts go up CONSIDERABLY as a bike ages; this is due to re-tooling/demand costs...so figure out absolutely every single thing you would want to replace, then compare the bottom line. 8>]