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Hi folks - looking for some advice here. I've got a 2013 Foreman TRX500 ES that won't shift up. I was out plowing the snow yesterday, and I shifted into reverse, backed up, then when I tried to go forward again, the machine wouldn't shift out of reverse. I was just at the bottom of my driveway, so I just backed it into the garage, then left the machine sitting for a few hours, as I had to run to a Christmas party.
Later in the day, I started the machine back up, and it shifted out of reverse just fine, so I drove it out around the neighborhood, and it was shifting normally at that point. I was working through the gears, and everything seemed fine. However, right when I was sure that the earlier issue was a fluke, I got stuck in reverse again as I was testing it out. This time I was down the street, and drove the length of the neighborhood backwards.
Did some research here, and I found kentco's advice on fixing shift problems. I pulled the starter motor, cleaned everything out, then re-greased with white lithium. Once it was all assembled, I was able to shift through all five gears, and back down, but got stuck in neutral. If I use the manual shift tool from under the seat, I can manually work through all of the gears just fine, but I can only use the ES for shifting down gears - it just won't go to higher gears.
Checking the service manual, so far I'm seeing continuity everywhere the troubleshooting says that I should, but I did notice something odd once I worked around to the shift angle sensor. The manual is saying that when I manually shift up, I should see the resistance increase, and decrease when shifting down. However, I'm seeing the following readings when checking pins A & B. I've also checked the resistance across all three pins, and they seem to be within spec of between 4-6 kΩ on pins A & C, and 2-3 kΩ on pins A & B.
For reference, here's the page of the manual I'm looking at:
![149465]()
I also made a short video of the noise the machine makes when I try shifting it. The video shows multiple attempts at shifting up, with one press of the downshift button. Does this provide any clues to anyone? Luckily, the big snow storms have passed for now, so I've got a week or so until the next one in the forecast. Hopefully I can get this thing fixed before then. Thanks in advance for any help you folks might have for me.
Later in the day, I started the machine back up, and it shifted out of reverse just fine, so I drove it out around the neighborhood, and it was shifting normally at that point. I was working through the gears, and everything seemed fine. However, right when I was sure that the earlier issue was a fluke, I got stuck in reverse again as I was testing it out. This time I was down the street, and drove the length of the neighborhood backwards.
Did some research here, and I found kentco's advice on fixing shift problems. I pulled the starter motor, cleaned everything out, then re-greased with white lithium. Once it was all assembled, I was able to shift through all five gears, and back down, but got stuck in neutral. If I use the manual shift tool from under the seat, I can manually work through all of the gears just fine, but I can only use the ES for shifting down gears - it just won't go to higher gears.
Checking the service manual, so far I'm seeing continuity everywhere the troubleshooting says that I should, but I did notice something odd once I worked around to the shift angle sensor. The manual is saying that when I manually shift up, I should see the resistance increase, and decrease when shifting down. However, I'm seeing the following readings when checking pins A & B. I've also checked the resistance across all three pins, and they seem to be within spec of between 4-6 kΩ on pins A & C, and 2-3 kΩ on pins A & B.
- When not shifting: 3.1 kΩ
- When shifting down (pushing the lever to the right as if I were sitting on the machine): 4.1 kΩ
- When shifting up (pushing the lever to the left): 1.9 kΩ
For reference, here's the page of the manual I'm looking at:
I also made a short video of the noise the machine makes when I try shifting it. The video shows multiple attempts at shifting up, with one press of the downshift button. Does this provide any clues to anyone? Luckily, the big snow storms have passed for now, so I've got a week or so until the next one in the forecast. Hopefully I can get this thing fixed before then. Thanks in advance for any help you folks might have for me.
