Hey everyone. Now that I got the Grasshopper actually running I'm thinking that the governor is either broken, missing parts, not adjusted correctly or was installed wrong. I have no way to know what the shop did to this mower before I got involved. They don't keep records and this is my Dads mower I'm trying to fix for him.
The issue is that it seems the only thing controlling the throttle is the governor and not the linkage from the throttle lever. I can push the throttle lever forward and it will connect with the "Governor Arm" and push it forward but that's it. If I move the throttle lever back the "Governor Arm" stays where it is and wont return and seems to want to increase in speed. I have to reduce the engine speed by moving that lever/arm back.
I've attached a couple of pics to help illustrate. The FSM shows that I'm missing a second spring but that spring wont help the Gov Arm to return. I only know the basic premise of what a governor is and what it's supposed to do, but I don't really know a ton about them. Does the first pic look pretty much normal? Or, is something wrong that I can't see/don't know about?
The second pic is what I did to make the gov arm return to closed throttle. Notice I installed a return spring to make it come back to idle. That's a drum brake spring from a Honda XR100 and it's pretty stiff, so I just threw it on to see if it made a difference. It does. I can cut a little "test grass" with it but I have to do the throttle work that the gov would normally do.
I could easily over rev that engine the way it is right now and during my test run I had to constantly adjust the throttle as you might expect.
I guess I need a crash course in Governors or why it would act up. When he put it away last year he could control the throttle with the lever with no problems, so what could have happened since then? Weird.
Once again, thanks in advance.
Pic1.jpg Pic2.jpg
The issue is that it seems the only thing controlling the throttle is the governor and not the linkage from the throttle lever. I can push the throttle lever forward and it will connect with the "Governor Arm" and push it forward but that's it. If I move the throttle lever back the "Governor Arm" stays where it is and wont return and seems to want to increase in speed. I have to reduce the engine speed by moving that lever/arm back.
I've attached a couple of pics to help illustrate. The FSM shows that I'm missing a second spring but that spring wont help the Gov Arm to return. I only know the basic premise of what a governor is and what it's supposed to do, but I don't really know a ton about them. Does the first pic look pretty much normal? Or, is something wrong that I can't see/don't know about?
The second pic is what I did to make the gov arm return to closed throttle. Notice I installed a return spring to make it come back to idle. That's a drum brake spring from a Honda XR100 and it's pretty stiff, so I just threw it on to see if it made a difference. It does. I can cut a little "test grass" with it but I have to do the throttle work that the gov would normally do.
I could easily over rev that engine the way it is right now and during my test run I had to constantly adjust the throttle as you might expect.
I guess I need a crash course in Governors or why it would act up. When he put it away last year he could control the throttle with the lever with no problems, so what could have happened since then? Weird.
Once again, thanks in advance.
Pic1.jpg Pic2.jpg
CH640 Governor prob. No return. Running the engine. Is this stock?
Aucun commentaire:
Enregistrer un commentaire