My 1961 MF 50 ran fine last week, finished cutting and shut down. Went to start this week and couldn't start until carb was adjusted, still a prob. But bigger prob was the clutch. I engaged 1 High, but then I couldn't stop! Shut off and still couldn't disengage. I didn't recall 'lifting' when I originally shifted, but I opened up trans oil point, lifted shifter and moved gears until it disengaged. Restarted motor (barely)and once in R Low, I couldn't stop again, with clutch fully pressed down. Gear locked, had to open top again? Isn't the upper half supposed to allow gear changing, and the lower end of clutch play to be used for PTO? Any help appreciated. I did note the free play is >1", maybe try a small adjustment? Still need to 'reset' my carb as well.