bigge31566
New member
I have a Massey 135 and when I first crank tractor it will not rev up only a slow idle then maybe 15 min. it will rev up and run find, as I use it more in the day its easier to rev up maybe less than 5 min or rev up immediately, but the next day slow again. I usely crank it let it idle to it breaks free. All of a sudden it will automately rev up, any ideas