We got a Bullet about a week ago, and I've dismantled it to fix some of the issues. The piston was stuck in the cylinder so I hammered it out and ordered another piston.
Once I got the cylinder off, the piston moved freely up and down. I got the piston in today, and went to install it - now the piston shaft wont budge! It's like it's frozen up inside of it. I cracked open the crankcase to take a look, and everything in there looks fine.
What's the deal? What should I look for when troubleshooting this?