This, I recently had a 500LX shifter that wouldn't shift anything. Only the lever would swing. It took a week of spraying once a day with GT85 or Plusgas and agitating to break down the solidified grease. It's good as new now.legrandefromage":21bynyoj said:The grease solidifies around the pawls, they need a proper clean out. 3in1 is very good. Do both shifters.