the machine loses power when walking if it is leaned back a little. if you run it in reverse, it runs normally. oil levels are fine.
Did you drain the sump on the fuel tank? Have you changed filters? If it bogs down in certain positions it is often water in the fuel, getting into the sump and intake area in certain positions.
The engine doesn't lose power, it loses oil power. I changed the filters and it's still the same. It's strange because it only loses strength going up.
From the short explanation of the problem, it sounds like the swivel seals are leaking through.
but if I disconnect the electrical part near the fuses, it doesn't lose pressure and it works fine.
Could it be the traction solenoid?