I have a Toro Recycler mower model 20017. It's logged a lot of hours in the past 4 years without a problem - until last fall when the personal pace self-propel system stopped "helping". Over the winter I replaced the traction cable (which had a small kink in the sheathing), the drive belt (as long as I was at it, right) and the broken handle spring. Greased, oiled and shined her and waited for spring. .... Well spring is here and unfortunately, there was no improvement!
Any suggestions where to look next? Seem's like opening up the transmission is all that is left, but I'm hoping there's an adjustment somewhere that I did not notice. Ideas?