Could anyone tell me the correct method to set up the Carb on my Suffolk Colt 30s. The mower runs but struggles to tick over. The plug (new) is sooty when removed which I would take to mean it is running rich. Carbs are not my thing. Thanks.

Dave G., August 2009

The only adjusting screw on these is the slow running or idle screw...set it one turn out from fully in and the idle should be steady. Clean the air cleaner if it needs it too.

John, August 2009