Victa Vantage VCS464 148cc 550 series 4 stroke lawn mower High Crazy RPM Issue. Briggs and Stratton Engine

[twilight79]

 

[Rivets]

And what’s your problem? If you post back include the engine numbers located on the shroud above the spark plug.

 

[bertsmobile1]

Did you loosen the tank mounting bolt yourself before you took the photo, or have you been mowing with a loose tank for so long that the governor rod has worn thin & broken. ?

 

[ILENGINE]

Did you loosen the tank mounting bolt yourself before you took the photo, or have you been mowing with a loose tank for so long that the governor rod has worn thin & broken. ?

Or the wobbling carb has cracked the plastic intake manifold and is now sucking air and bypassing the throttle system.

 

[Rivets]

Or the throttle cable running under the air filter housing is rubbing on the linkage or throttle?

 

[tom3]

Bottom line, the governor is not pulling the throttle back to operating speed.

 

[twilight79]

Hey guys

i am so sorry I just realised everything I typed and described about my issue did not save and only the images and my title did.

I am so sorry. Anyways let me describe the issue now.

‘’I took off the carbureator to give it a good clean and changed the diaphragm aswell. Everything is sealed up fine and put back together.

‘the mower ran perfect the next two times till two days ago when I get a rattling tin sound coming from the engine or the mower. the revs are just insanely high and I cannot even move the throttle a little bit because the sound now is deafenin. It has never been this loud.

‘’also the mower shakes and vibrates badly when using it so I tried to change the plastic white piece to enable for slower revs. The slower revs are very faint and the mower almost grinds to a hault so I have to keep increasing the throttle ever so lightly so it doesn’t go crazy.

do you think replacing the governor spring might fix the issue or is it a lot more serious. I am happy to post a video tomorrow by starting the mower so you could tell better?

I will post the engine number shortly. Long story short.... crazy revs, loud sound, shaking, vibrating mower.

 

[twilight79]

Here are some more images I just took out. I’ll post a video tomorrow. Thanks again

 

[twilight79]

Bottom line, the governor is not pulling the throttle back to operating speed.

Thanks for your update. So if I change the governor spring, is it more likely to be fixed . I also ordered a new throttle just in case it is the throttle cable.
thx

 

[twilight79]

Did you loosen the tank mounting bolt yourself before you took the photo, or have you been mowing with a loose tank for so long that the governor rod has worn thin & broken. ?

Hey mate. Haven’t been mowing with a loose tank. that picture was taken before I took off the tank for a clean. It is secured now and tight. Thanks