carb butterfly valves question

[Rick Bass]

I have an 85 force 125. Changing the throttle does not change the position of the butterfly valves. The only way to get them to move is with the choke button. Shouldn't opening the throttle to the wide open position make the butterfly valves go horizontal. There is no mechanical linkage that allows this. I'm confused

 

[jerryjerry05]

Re: carb butterfly valves question

The front butterflys are for choke only.
The second set is for acceleration.(look in the carb)
They open when the throttle is pushed forward.

 

[foodfisher]

Re: carb butterfly valves question

This caused me to go and get the book. 15mis. round trip. Couldn't find a second set of butterfly valves anywhere. To the OP. See the link and sync. sticky.

 

[Jiggz]

Re: carb butterfly valves question

sorry but I believe there are two sets. One is called the choke shutter which is on the mouth of the carb and then there is the throttle itself which is behind the main jets located by the throat of the carb. Look again and you can see it move if you just move the vertical link between the two carbs. Might need a flashlight to see it properly.

 

[foodfisher]

Re: carb butterfly valves question

Yes, There they are! In the book. Now I'm going to have to go see them in person. Sorrysorry Jerryjerry. Thanks Jiggz

 

[jerryjerry05]

Re: carb butterfly valves question

I thought I was loosing my MIND!!!!!
I have a set of carbs here you can come and see them if you like???

We can go fishing too!.
Infact we're going this AM.
So gotta go get ready.The guys will be here soon.

 

[Rick Bass]

Re: carb butterfly valves question

I'm losing my mind... no matter how I adjust the linkage, I can't stop the dieseling affect.. if I understand it right. The butterfly valves won't go completely vertical to kill the engine and at full throttle they won't go completely horizontal to max speed. I just don't see how I can get it to do that