08-06-12, 07:24 PM
Its not just cheap chinese bike engines this happens to.Last place I worked at one of the stores guy had a Harley "sportster" and just as he pulled into the bike shed the engine made a horrendous noise.It was a quiet night shift so we stripped the top end and it looked just like your engine.When he got it taken home he found bits of metal in the sump.He ended up having to buy a second hand engine and working over for 3 months to pay for it.