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Truck, Trailer, and Outdoor Power Equipment Discussion, Repairs. Questions on your truck, trailer, commercial lawn mowers, lawn mower, mower parts, lawn tractors, engines, edgers, trimmers, pole saws, aerators, hydro seeders, snow plows, chain saws, stump grinders??

Adjusting governor


Truck, Trailer, and Outdoor Power Equipment Discussion, Repairs.

Questions on your truck, trailer, commercial lawn mowers, lawn mower, mower parts, lawn tractors, engines, edgers, trimmers, pole saws, aerators, hydro seeders, snow plows, chain saws, stump grinders??
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Old 06-11-2012, 09:52 PM
wat5150 wat5150 is offline
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Default Adjusting governor

Hey do any of you guys ever adjust your governor to get a little more rpm? I know you arent supposed to make them wide open but I think my engine could take a few more rpm. Its a kawasaki 22hp ohv. Ive just been mowing a lot of tall grass lately and it bogs a little and I have to go over certain areas a couple of times. My blades could use a little sharpening but I really dont think thats the main problem. I want to tweak the gov and get a few more rpms.
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Old 06-12-2012, 08:27 AM
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Originally Posted by wat5150 View Post
Hey do any of you guys ever adjust your governor to get a little more rpm? I know you arent supposed to make them wide open but I think my engine could take a few more rpm. Its a kawasaki 22hp ohv. Ive just been mowing a lot of tall grass lately and it bogs a little and I have to go over certain areas a couple of times. My blades could use a little sharpening but I really dont think thats the main problem. I want to tweak the gov and get a few more rpms.
Engines have a torq curve, more rpms do not equal more power. do you know what rpm the engine is set at now?
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Old 06-12-2012, 05:29 PM
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I think its at 3500 or 3600. Not sure. I messed with it today. Blades are coming off and getting some serious sharpening. Could be the problem. Im trying out these "Gator" like blades. Not real impressed. Im going to sharpen them up anyway and see what happens. Ive hit couple rocks past few days. Hate that ****.
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Old 06-12-2012, 09:57 PM
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wandfsmall is right. if you increase the RPM of the motor past 3600 RPM you're going to start losing torque which will cause your mower to bog down even easier in taller grass. This will also cause a much shorter life span for your bearings in your motor, pulleys & spindles. I don't know if it would affect the pumps if you have a ZTR.
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Old 06-13-2012, 06:26 AM
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Originally Posted by wat5150 View Post
I think its at 3500 or 3600. Not sure. I messed with it today. Blades are coming off and getting some serious sharpening. Could be the problem. Im trying out these "Gator" like blades. Not real impressed. Im going to sharpen them up anyway and see what happens. Ive hit couple rocks past few days. Hate that ****.
I have seen some of the Gator clones that are junk and can bog an engine. In fact some of the gator versions are not the best blades on the market. It all depends on what your cutting and your mower setup. But I can assure you that cranking your engine up is not the answer. I have gotten more then one trade in mower from customers doing exactly that and wondering why they cut worse after they cranked them up. It is an easy fix other then the life of the mower was shortened.
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Old 06-13-2012, 07:49 AM
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Ok. Thanks for the input. Im going to switch out my blades in a week or two. For now Im going to sharpen the gators.
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Old 06-13-2012, 12:20 PM
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So ultimately, the governor is not there to limit your speed but more there to keep the engine running at it's optimal rpm? Is that right?
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Old 06-13-2012, 09:53 PM
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Quote:
Originally Posted by Steve View Post
So ultimately, the governor is not there to limit your speed but more there to keep the engine running at it's optimal rpm? Is that right?
That's correct Steve. I'm an electrician as my main job. This is true for ALL motors. once you pass the rated max speed rating you will start losing torque very quickly. Also if you run an engine at speeds faster than the max rated speed you will shorten the life tremendously.
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Old 06-13-2012, 11:14 PM
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Quote:
Originally Posted by Steve View Post
So ultimately, the governor is not there to limit your speed but more there to keep the engine running at it's optimal rpm? Is that right?
yes you do have different curves for different engines so you do have engines that can go faster then others and still have power. But the gov is on the engine to get the most power out of the motor, not to stop you from getting more power.
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Old 06-14-2012, 01:57 PM
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I think the thing about this topic that confuses people is why aren't there governors on cars? Since there aren't governors on cars, then I think most people feel mower engines would work better without them.
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