Butterfly choke

[Vanttam]

We have. Read post #12 and #25 again. Look at what moves the butterflies when someone advances the throttle. It will be obvious what parts move.
Two of yours currently move…look at what makes them move. Then tighten the fitting in the one that doesn’t move, making it in synch with the others. It really cannot be simplified anymore.

K so what I'm asking the butterflies move with throttle even know its the choke butterflies. I'm talking about n they shut when I push in the key. So, they also move with throttle.

 

[Vanttam]

K so what I'm asking the butterflies move with throttle even know its the choke butterflies. I'm talking about n they shut when I push in the key. So, they also move with throttle.

Let me rephrase that. The butterflies I'm talking about are for the choke n when i push the key in they shut. When key is released they open. So if the throttle is is used they will still open. hope that explains it better

 

[vics]

I have a 1980 70 HP Johnson. I just had the carbs rebuilt, there is 3 carbs. For some reason the top carb is not opening or closing. Is there a way to fix this and if so how.

We are talking about the choke butterflies , not the throttle butterflies .... Yes?

You imply that the lower and middle carb choke butterflies are operating correctly. That is normally fully open and fully closed when the key is pressed in to activate the solenoid .....Yes ?

The top one however is not operating correctly.
Slacken the screw which clamps the operating arm to the shaft. (See the snip the from your photo below.) Position the butterfly correctly and then tighten the clamp screw.

If necessary adjust the bottom one in the same way .so that all three operate in the same way.




Looking at the middle carb are you sure this spring is positioned correctly ?



I am not sure but I think the throttles should open partially when the choke is operated. Can someone confirm this . If I am right do they?

Make sure that all three throttle butterflies operate together from closed to fully open

 

[Vanttam]

Buy the book...problem solved..There will be other issues that you will need the book for..

We are talking about the choke butterflies , not the throttle butterflies .... Yes?

You imply that the lower and middle carb choke butterflies are operating correctly. That is normally fully open and fully closed when the key is pressed in to activate the solenoid .....Yes ?

The top one however is not operating correctly.
Slacken the screw which clamps the operating arm to the shaft. (See the snip the from your photo below.) Position the butterfly correctly and then tighten the clamp screw.

If necessary adjust the bottom one in the same way .so that all three operate in the same way.

View attachment 31779


Looking at the middle carb are you sure this spring is positioned correctly ?

View attachment 31780

I am not sure but I think the throttles should open partially when the choke is operated. Can someone confirm this . If I am right do they?

Make sure that all three throttle butterflies operate together from closed to fully open

K i just looked over the pics i have of it and the top carb is almost close the mid carb is almost open n the bottom is open full i uploaded the pics to this page i would just like to say ty for showing were the clamp screw is i appreciate it

 

[vics]

K i just looked over the pics i have of it and the top carb is almost close the mid carb is almost open n the bottom is open full i uploaded the pics to this page i would just like to say ty for showing were the clamp screw is i appreciate it

I dont see any adjustment for the middle one but maybe it is not fully open because the bottom one is opening a bit early ???
Maybe adjusting the bottom one so that it is the same as the middle one then adjusting the top one will sort all three out.