In a properly operating governor based small engine system, the only connection between the carburetor and the dash mounted throttle lever is the spring that runs between them. Adjust the governor according to the service manual and then set high RPM according to the service manual. You will need an electronic induction tachometer to do this accurately, they are only $9 on ebay.

From what I'm getting from your description, you could possibly have a broken internal governor. Possibly one of the spinning weights has broken off. How many hours on the engine?

Welcome to the forum, there is an amazing amount of collective knowledge at your fingertips here. Be humble and respectful and we will all do our best to help.

Bill

 

In a properly operating governor based small engine system, the only connection between the carburetor and the dash mounted throttle lever is the spring that runs between them. Adjust the governor according to the service manual and then set high RPM according to the service manual. You will need an electronic induction tachometer to do this accurately, they are only $9 on ebay.

From what I'm getting from your description, you could possibly have a broken internal governor. Possibly one of the spinning weights has broken off. How many hours on the engine?

Welcome to the forum, there is an amazing amount of collective knowledge at your fingertips here. Be humble and respectful and we will all do our best to help.

Bill

Thanks,

The engine only has about 150 hours on it. The throttle is connected to the arm on the governor by a spring, but one end of it slides through the hole on the arm when I take the throttle to idle. It seems like the governor is to settle to idle on its own in this case, but it doesn't seem to be doing that. If I force the arm with my hand, it seems to settle to idle nicely.

I have attached and incredible piece of hand art to convey.

Thanks,

Frank

 

Frank, it seems you need to adjust the governor arm on the governor shaft. The "hand art" is a good explanation, there should always be "pull" tension on that spring.

Bill

 

So here is how a govenor works. When the engine is running, The govenor is always trying to slow the engine to an idle. To make the engine rev higher, you use spring tension to force the throttle to move to a higher setting. As the engine begins to increase in rpm, the govenor continues to increase its force untill it is equal with the spring.

To test the govenor, remove all linkages and springs from it. Then fire up the engine and control the trottle with you hand. As you do this, try to move the govenor. When you are trying to move the govenor, you should feel resistance. As you increase the rpms, the govenor should push against you even more. If the govenor produces no pressure, then something is faulty inside the engine