Ok so i think i might have messed up my flatty. I put to much oil in and it started to run real bad.... When i had no choke on the thing would rev up so high untill i turned the key off. Whats the deal? I drained all the oil (way to much was in) and but the 5 qts that the manual said to. and it still does it. Could it be a blown ring?

Please help.

Alec