I'm trying to resurrect and sell the 1985 Honda TRX 125 that my kids used to ride so somebody else's kids can enjoy it. Unfortunately, although it tries to start (you can hear it fire and the exhaust pipe gets a little warm, but as soon as the starter is released it stops). I've checked everything else and I believe the problem is lack of compression. It has only about 100 psi and the service limit is 128 psi (normal is 178). I know the cylinder is on its last overbore, so I'm looking for a source for a cylinder and piston. Any suggestions?