If so there is a very good deal on eBay for a generator flywheel (537209602) for $30 plus shipping. I don't think the guy knows what he has but it is immaculate and reasonable shipping. This has nothing to do with me - I stumbled on it when poking around earlier today. Seems new ones go for $135 plus shipping.
http://www.ebay.com/itm/Husqvarna-5...869960?hash=item3f59f07308:g:7ugAAOSwZG9WhbER
http://www.ebay.com/itm/Husqvarna-5...869960?hash=item3f59f07308:g:7ugAAOSwZG9WhbER