Comments on: how do I adjust a lawnmower carb to keep it from surging? http://www.qualitylawnmower.com/blog/how-do-i-adjust-a-lawnmower-carb-to-keep-it-from-surging/ Thu, 17 May 2012 14:48:04 +0000 http://wordpress.org/?v=2.7 hourly 1 By: Bare B http://www.qualitylawnmower.com/blog/how-do-i-adjust-a-lawnmower-carb-to-keep-it-from-surging/comment-page-1/#comment-979 Bare B Mon, 02 Mar 2009 15:30:13 +0000 http://www.qualitylawnmower.com/blog/how-do-i-adjust-a-lawnmower-carb-to-keep-it-from-surging/#comment-979 If carb adjustment doesn't work: Look on the side of the carb and you will see a little plate with a spring connected to it. It moves with the speed of the fly wheel. It is designed to increase the speed of your idle if the flywheel slows down. The fins on the flywheel move air, which moves the plate, which speeds up or slows your idle. If this spring is weak, the plate moves too freely, causing surging. It is a very easy replacement, and should be less than $5. It may not be moving at all, and that will cause the same problem. This mechanism is called the governor. You will need the model and serial of the engine when you get a replacement, as these are made with different specs. If carb adjustment doesn’t work:

Look on the side of the carb and you will see a little plate with a spring connected to it. It moves with the speed of the fly wheel. It is designed to increase the speed of your idle if the flywheel slows down. The fins on the flywheel move air, which moves the plate, which speeds up or slows your idle.

If this spring is weak, the plate moves too freely, causing surging. It is a very easy replacement, and should be less than $5. It may not be moving at all, and that will cause the same problem. This mechanism is called the governor.

You will need the model and serial of the engine when you get a replacement, as these are made with different specs.

]]> By: offshore18 http://www.qualitylawnmower.com/blog/how-do-i-adjust-a-lawnmower-carb-to-keep-it-from-surging/comment-page-1/#comment-978 offshore18 Fri, 27 Feb 2009 10:01:35 +0000 http://www.qualitylawnmower.com/blog/how-do-i-adjust-a-lawnmower-carb-to-keep-it-from-surging/#comment-978 turn the low speed adjusting screw in slowly until it starts running rough - then back it out slowy until it smoothes out and stop there. turn the low speed adjusting screw in slowly until it starts running rough - then back it out slowy until it smoothes out and stop there.

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