I have a 2009 LA 105 John Deere Riding Mower Briggs Model 31P677 Type 0140B1 with a 19.5 HP engine The engine runs decently under load at 3/4 to full throttle. However, in no load neutral or low speed the RPMs are too high I attempted multiple times to adjust the idle screw with no improvement. Please advise.
P
P