governor linkage on an Atco Royale B24 with a Briggs and Stratton engine?

Question

I have reconnected the linkage from the Governor to the throttle on this mower, but when not running the throttle stop is in the open position which I do not think can be correct, and does not fit with diagrams of comparable engine/carburettor/governor set up. The engine does run, but not smoothly, though I suspect this may be related to other issues.

Information on the internet has helped me understand a little better how the governor manages engine speed; however I cannot find images which relate to my particular model of Briggs and Stratton engine [5HP, horizontal shaft, L-head Model 130217 Type 3048 01] Here are links to some pictures which I hope illustrate the options for connection of the springs and which may enable somebody with experience to provide me with a little guidance.

The first link shows the vertical linkage in place. if you zoom in on this you may notice that the linkage has a very light gauge spring wrapped around it, which runs the full length of the linking wire. I have no clue as to how this spring should be connected at either top or bottom. http://ubuntuone.com/2IWL4dhGZd6VG3ocTJ4rLt

The second link shows how the throttle cable connects to a slider which is tensioned by a spring, also visible. http://ubuntuone.com/12ZxSa9W18QvkoGuBnlQzi

The third picture shows the reverse of this assembly, with the throttle cable disconnected. To show this the fuel tank and carburettor have been separated from the block of the engine. The end of the tensioning spring is visible.

The fourth picture shows the governor in the context of the engine block, with exhaust, tank and carburettor removed. http://ubuntuone.com/57toWFZhWYRgevoaK7AIf6

The fifth picture is a close up of the governor itself, showing a two holes at the right hand end and also a little flange bent forward which takes one end of the governor spring. http://ubuntuone.com/10p8UwxkCz73AiEqZRh57I

Finally, here is a picture of both of the springs which appear to modulate the interface between throttle cable, governor, and the throttle pivot on the carburettor. http://ubuntuone.com/4aLPQGhib8uTxAT69LFe0S

Any guidance on this matter would be greatly appreciated.

Answer 1

It sounds like you have the governor shaft turned opposite of correct when tightened, or missing tiny return spring on the throttle arm of carburetor itself or behind gas tank. The governor fights that throttle as the engine runs by means of a spinning counterweight throwing itself outward toward the internal part of the gov. shaft. Try twisting this shaft a bit with engine running at LOW speeds. If it is loose or feels wrong it might be internal. Camshafts loose their spring loaded valve release into the engine on alot of these. What was the original problem?

Answer 2

Atco Royale

Answer 3

Atco Royale B24

Answer 4

if the engine lops while running the linkage setting is wrong,

go to briggsandstratton.com and type in your model, # and serial # & hp