Loss on drive on Poulan Lawn Tractor

There could be several reasons why a Troy Built Pony lawn tractor will move in reverse but not forward. One possible reason is a faulty transmission. The transmission is responsible for transferring power from the engine to the wheels, and if it is not functioning properly, the tractor may not move forward. Another possible reason is a broken or worn out drive belt. The drive belt connects the engine to the transmission and if it is damaged, the tractor may not move forward. Additionally, a damaged or worn out pulley can also cause the tractor to move in reverse but not forward.

To diagnose the issue, it is recommended to check the transmission fluid level and condition, inspect the drive belt for any damage or wear, and examine the pulleys for any signs of damage or wear. If any of these components are found to be faulty, they should be replaced immediately.

In conclusion, if a Troy Built Pony lawn tractor is moving in reverse but not forward, it could be due to a faulty transmission, a broken or worn out drive belt, or a damaged or worn out pulley. It is recommended to inspect these components and replace them as necessary.

my only guess is it came off and Idler pulley or drive pulley

First check the drive belt. May come off.

if it works in one direction but not the other its a linkage problem

If the engine is running normally and the drive belt between the engine and the transmission is in good shape, most likely you have a failed hydrostatic transmission.

I need the diagram for a drive belt for a 42'' lawn tractor - 14.5 hp Can ANY ONE help me?

sounds like the by pass rod has been pulled out

adjust the clutch cable

Check the drive belt.

I also have a Craftsman tractor with the same problem. Sears repairman said it needed a new transmission and it would cost $1,400 to install. A new one is about $1,000. Anyway, if you remove the battery and the battery tray under the seat it will expose the transmission fill hole (hex). I opened the top and it looked empty. I had a bottle of 90 weight gear oil in my shop and filled the transmission to the top. I have not had any problems with it since. $4.00 bottle of oil verses a new tractor is worth a try.