I have an older Ariens ST504 that I picked up at a garage sale a few years ago. It has run fine until a few weeks ago.
I last used it about 3 weeds ago. Toward the end of blowing out driveways of all the neighbors, it started bogging down when under load. If I stopped the auger and drive, the rpms would pick up again, but fall off as it got back under load. Also, the throttle lever no longer responds, it seems to only work in the wide open mode. I can slide the lever down to idle & back up again but it stays runnig full bore.
It was really cold that day so I thought the throttle linkage was just frozen up. But the same thing happened today, and we have had a warm spell in between.
I have a feeling it's the governer. I'm not familiar with how this works, I'm used to machines with throttles that I control!
I have downloaded the manuals for it, but they don't address the engine or carb.
I'm hoping someone can help me out with this, otherwise it's off to the small engine repair shop.
Dave in WI
