Hello, I am new to the forum but am hoping to find some answers from all of you experienced Cub techs. I have a 1450 in decent shape. The engine runs strong, no smoke, cranks very quickly. I have reset points, new coil, new condenser, rebuilt carburetor, new air filter and I currently have the mowing deck removed for restoration. Prior to all of these recent repairs and replacement, the tractor had set unattended under cover for 10 yrs. It now runs well at high idle and low idle as it has been set by the factory specs. Here is my issue: I took the tractor out for a drive this evening and encountered a problem that I experienced right after we pulled it out of storage, but was able to understand today. When driving on flat land at top speed or uphill at slow speed there is no problem. However, if on asphalt I hit a steep incline at top speed the tractor begins to struggle as though the engine was being stalled by force, not by internal malfunction. It seems as through the transmission is dragging and causing the engine to stall. When this problem happens I can prevent the engine from stalling by pulling the shifter back to neutral and then after the engine resumes normal speed, push the lever to a very slow speed. At a slow speed, it will pull the hill. Another factor that leads me to the transmission is the speed of the transmission seems inconsistent when driving on on relatively flat land. It will vary its speed at full cruise. If anyone has a suggestion, it would be greatly appreciated. The problem did seem to be complicated when I pulled the hydro lift lever. It seemed to bring on the problem as well. Thanks!
Chad