Briggs 20hp intek choke o matic not working

[bertsmobile1]

OK now we get the entire story
That mower originally came out with a 407777 engine and was fitted with a separate throttle & choke cables with a 2 barrel carb
The 40n877 comes with only 2 variations & a single barrel nikki carburettor
Some on has fitted the 40N877 that has come from a mower with a auto choke without swapping all of the controls from the 407777 to the 40n877
The throttle levers on choke 0 matic controls have more movement than those with a dedicated choke so you are going to need to fit a complete choke cable including the bracket on the manifold .
There is also 6 different throttle controls and 4 of them are different choke O matic ones that were fitted to the original 407777 .
I have a feeling that you will need a longer control linkage that goes from the throttle control to the choke.
I always suggest that JD owners get a JD technical manual even when you pay for them they will repay themselves 10 times over in a very short space of time
In the cable section attached you will see where I got this copy from.
Their engine section is actually better than the offical Briggs & Kohler engine manuals.

 

[StarTech]

From what I see the throttle is a pusher. The reason it bending it you have reach you have reach the outside edge of the rotation plane. An example is to take the round ring start with you hand next now start rotating the ring with you keeping your hand in position on the ring once you get your hand furthermost away it can't rotate any more no matter how pressure you put on it.

On the following image I think you are pushing at the area that the orange arrow indicates to close up gap bewteen it and the tab to the left. Is this correct? If so change cable to routed as indicated by the red line; of course, you need to move the cable clip. The yellow arrow indicated hole for the cable z bend end to go into.

 

[bill.becker@outlook.com]

Yes, the JD mower has slots for a choke and throttle but only a throttle lever as the engine was replaced with the one with the choke o matic. The page you attached looks like what the original engine would have looked like. I would love to get a service manual for my current engine. I couldn't tell where to find it from your attachment. Thanks for your help

For the second reply yes, the orange arrow is where I am moving that bracket to engage the choke except I am pushing from the front and not the back where the arrow is. It then rotates further and there is a "clicking" sound as if there is a tab or something that is offering resistance to the rotation. I can try moving the attachment point to where you recommend

 

[bertsmobile1]

My tractor forum , search for manuals .
This site does not have a facility to store documents
My tractor does

or you can buy it from JD as a download , disc or paper ( cheaper left to right )

If it were me I would buy a choke cable and the choke bracket.
The lever in the dash will not have the "full throttle - no choke" detent that choke O matic ones have so you will always be guessing if you have fully opened the choke .

 

[bill.becker@outlook.com]

Problem solved -- thanks everybody for your help. Indeed, the cable was attached at the wrong place. I went to home depot looked at a JD tractor there and the attached picture is how it is supposed to be hooked up. I easily moved the cable to this attachment point and everything works fine now. It is now a "Pull" action and not a "Push" action and the lever position now matches the speed diagrams on the dashboard

 

[StarTech]

That was what I was wondering if you a pull or push throttle setup. What I was describing was the push setup.