Long story short i'm looking for someone very experienced in rebuilding LTZ 400 motors that lives near Philly. Its got a bad knock and so i figure it needs a main bearing. I dont' have the time or experience to rebuild my Z400. Totally willing to put out a few bucks (not $2200 quoted by a dealer) to get it fixed and not looking for a freebee. If the price is right i'd buy a complete motor too. Let me know if you can help me out. Its been down for a year and i can't take it anymore. I need my quad back! All my buddies are riding without me!