Strokerace2639 3 #1 Posted 3 hours ago Hello all, I have a 1990 312-H in my possession that I have used for SEVERAL years. The trans has started to act up for a while. at first it would jump from forward to reverse on its own. even though it was very had to move the direction lever by hand. then it became "LURCHING" ( almost picking the front wheels off the ground) on movement. the only way I have found to stop it is put the mower in very low idle move the direction lever to the forward and then increase throttle to get up to speed. What are the suspect issues and are there parts still out there to fix any issues? Feel free to ask any question you have have. Thank You, AS Share this post Link to post Share on other sites
gwest_ca-(File Mod) 12,277 #2 Posted 2 hours ago Sounds like you may have linkage/control problems. Have you removed the seat pan to clean the top and front of the transmission? 1 Share this post Link to post Share on other sites
Handy Don 16,751 #3 Posted 2 hours ago Yep. One or maybe several places in the linkage are out of whack due to wear or debris. Share this post Link to post Share on other sites
squonk 46,866 #4 Posted 1 hour ago Cam and guide plate wear out Share this post Link to post Share on other sites
