Low Compression - Kawasaki FR730V

Auto Doc's

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I watched your video posting after I had replied.

Check your spring locations, because they are what keep the governor from activating by itself as shown in the video.

The governor is a simple flyweight design, and it is working, but the linkage springs have to be in the correct location to regulate its operation
 

txmowman

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The governor bolt was stripped because it has left-handed thread. The person who tried to loosen it turned it the wrong way. Very common error.

The governor's ball guide is likely damaged, which is why the RPMs are creeping. Two pins on the back of the guide keep the guide at the same speed as the camshaft. When these pins are broken or melted, this will happen. If you move the throttle to the rabbit position, do the RPMs increase more slowly than they should?
 

scottchopchop

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I should have been more clear in my earlier post. The video of the creeping idle is not my machine. I only found that video to confirm that the bolt in the middle of the governor arm is an adjustment mechanism.
I watched your video posting after I had replied.

Check your spring locations, because they are what keep the governor from activating by itself as shown in the video.

The governor is a simple flyweight design, and it is working, but the linkage springs have to be in the correct location to regulate its operation
 

scottchopchop

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Joined
Mar 5, 2025
Threads
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The governor bolt was stripped because it has left-handed thread. The person who tried to loosen it turned it the wrong way. Very common error.

The governor's ball guide is likely damaged, which is why the RPMs are creeping. Two pins on the back of the guide keep the guide at the same speed as the camshaft. When these pins are broken or melted, this will happen. If you move the throttle to the rabbit position, do the RPMs increase more slowly than they should?
I should have been more clear in my earlier post. The video of the creeping idle is not my machine. I only found that video to confirm that the bolt in the middle of the governor arm is an adjustment mechanism.
 

txmowman

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Joined
Oct 8, 2018
Threads
1
Messages
311
I should have been more clear in my earlier post. The video of the creeping idle is not my machine. I only found that video to confirm that the bolt in the middle of the governor arm is an adjustment mechanism.
I read that the video was not your mower. I apologize for assuming that you were having a similar issue.
 

Auto Doc's

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244
I watched your video posting after I had replied.

Check your spring locations, because they are what keep the governor from activating by itself as shown in the video.

The governor is a simple flyweight design, and it is working, but the linkage springs have to be in the correct location to regulate its operation
The governor bolt was stripped because it has left-handed thread. The person who tried to loosen it turned it the wrong way. Very common error.

The governor's ball guide is likely damaged, which is why the RPMs are creeping. Two pins on the back of the guide keep the guide at the same speed as the camshaft. When these pins are broken or melted, this will happen. If you move the throttle to the rabbit position, do the RPMs increase more slowly than they should?
Are you going to replace the bolt, adjust and then try it again? I suggest that before you have to commit to tearing into it to replace.
I have not run across any governor arm pinch bolts with left hand threads, only a few that were stripped from somebody overtightening.
 

scottchopchop

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I watched your video posting after I had replied.

Check your spring locations, because they are what keep the governor from activating by itself as shown in the video.

The governor is a simple flyweight design, and it is working, but the linkage springs have to be in the correct location to regulate its operation

Are you going to replace the bolt, adjust and then try it again? I suggest that before you have to commit to tearing into it to replace.
I have not run across any governor arm pinch bolts with left hand threads, only a few that were stripped from somebody overtightening.
 

scottchopchop

Forum Newbie
Joined
Mar 5, 2025
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The bolt on mine was in fact left handed threads and me "un-tightening" it the wrong way is what stripped it. I didn't figure out it had left hand threads until I went to put it back together. Unfortunately that seems to be how I learn :) Here's the new setup for now.
 

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