www.tewarehouse.com – best place to buy parts from!!!
I use Supertech brand carburetor cleaner and penetrating oil, works great and is reasonbly priced, also for the outside I use purple power mixed 75/25 (PP / Water)
In depth video on replacing leaking oil seals and crankcase / oil sump gaskets, using a 5 horse as a example, very similar on just about any small engine. Thanks for Watching!!!