ok its a ryobi cs330 and before anybody says anything...i hate chinese engines and it was a gift. I pulled the starter cord out and it wouldnt go back in. i took the whole thing apart, rewound it, put it back together and the string pulled out and wouldnt go back in again. i repeated the same steps over, took whole thing apart...same result. next i started pulling the pull string every step of the way. it messed up when i put the spark plug in. could the cylinder head be hitting the spark plug? this has me really confused and frustrated. any help would be much appreciated. thank you.
p.s. please refrain from comments like "get a new string trimmer" this isn't about the trimming any more...it's personal.:)