High idle after rebuild

[starsnbars]

[Bear45-70]

Slide is in backwards. It should drop down to the bottom of the throttle bore.

[Kenny_McCormic]

Yep I was right, slide is in wrong, sitting looking at the carb side of the motor the slot in the slide needs to be at 11 o clock IIRC.

[starsnbars]

How could it go any other way, there's the little notch in the carb and only one slit in the slide for the throttle to go down. The slanted groove in the valve has to align with the throttle stop screw. I don't see how it could go in any other way.

[Clivester]

Your slide is in the correct way. The half-moon cutout should be facing the filter as you have it. However, the slide is way too high.

The throttle stop screw looks as is it is in much too far. Back it all the way out and see if the throttle slide drops all the way down. If not, something else is causing it to hang up - check the cable. If its not the cable could the needle be the wrong one and too thick/long for the main jet?

A picture is worth a thousand words

Clive.

[DJPhatman]

In the pic, back the screw with the spring under it out (counter-clock wise) It is screwed all the way in. That screw is the Idle Speed Adjustment Screw, Not the air/fuel mixture screw.

[Bear45-70]

In the pic, back the screw with the spring under it out (counter-clock wise) It is screwed all the way in. That screw is the Idle Speed Adjustment Screw, Not the air/fuel mixture screw.

With the slide open that far the engine will never idle and hence the screw will have no effect.

[starsnbars]

finally figured it out! ok so after all the advice the slide needle was definitely not going deep enough into the jet because I tried starting it with just the slide and needle without being attached to the spring and throttle and it idled perfectly! So I realized that the throttle cable is not long enough at idle for the needle to go all the way through. However I never played with the throttle adjustment so I don't know why it's not out as far.

[niftyfifty86]

I have an 86 spree that idles very high and sometimes it will idle even idle high and then shut off. Adjusting the screws doesn't seem to help and we made sure the throttle valve needle was in their correctly but nothing seems to help. What could be the problem?

[Bear45-70]

Throttle cable is bad and hanging up.

[niftyfifty86]

The cable has plenty of slack, I made sure the needle was all the way in. Still idling high...

[Bear45-70]

The cable has plenty of slack, I made sure the needle was all the way in. Still idling high...

It is not about slack. It is about the inner cable hanging up and not moving as far as it is suppose to inside the outer cable.