Long story short I sent my 2011 outy 800 off to get bored out & ended up using a friend of a friend that has a shop & supposedly did great work for a great price. After almost a year & many headaches I get my bike back & it’s a train wreck now. After pulling my bike apart I noticed the manufactured date on the motor sitting in my bike is from mid 07 & my bikes manufactured date is early 11. Does anyone know how I can tell if this is my engine or not?? Thanks