I recently got the blade stuck in a tree stump, the grass was kind of tall and I didn't see it. The engine stopped when it got stuck and I had to pull the blade out of the tree stump. After pulling it out the blade was loose and as I pulled the starter to start the engine the blade fell off after 2-3 pulls. Now every time I put the blade back on I tighten it as much as I can, its pretty tight. But when I try to start the engine, 2 - 3 pulls of the string and the blade falls off again.
I don't know what to do, I keep putting the blade back on but it falls off and the engine doesn't start because of that (I think its a safety feature).
Do you think there's something causing the blade to come loose really easily even after I tighten it on?