Hello I am new here and I have a question for some people that no more than I do (would not take a lot) I have a 1950 John Deere M that has been setting for about 5 or 6 years and it seems the motor is locked up. It did run 6 or so years ago. I recently bought a sawmil and I want to us my little M to pull some logs. I put a combination of things in the spark plug holes. PB blaster (can after can) ATF,kroil oil, and some kerosene someone told me would be good for it. I did all this and it soaked for about 2 months. Every night or at least every other night I would rock the tractor in 3rd or 4th gear hoping to break it loose. Over the week end I coasted down a hill popping clutch in 4th gear. I know this could be a bad idea but I have seen my grandfather do this when a tractor would be locked up. If he were here now he would tell me to do that until it frees up. I took the stater out hoping it was locked up but no luck. Any help please? I know the last time the tractor ran my dad parked it there and ran great. Just to many year of sitting I guess...Help Please? I am no mechanic..