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Stuck Slide Assembly

  • Thread starter Thread starter Narrator
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Narrator

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I know I'm missing something but can't figure it out. The carbs are off and one is completely disassembled except the slide assembly. It slides smoothly up the carb body to the point of being wide open and then just stops dead...does this on all four of them...which makes me think I'm missing something.

VM carbs off a 79 GS 750
Any insight is appreciated.
 
The only thing that makes sense is damage to the slide bores. inspect the top of the bore(s) carefully.

is there damage to the bottom of the slide not allowing it to be removed?
 
Dumb question... Have you removed the bar that holds them all in???
 
Bores look smooth.They all stop at exactly the same point and it's not like there's a building resistance...they slide smoothly and then just stop when the air intake is wide open. Like they are hitting something and not supposed to move any further.
 
Narrator said:
Bores look smooth.They all stop at exactly the same point and it's not like there's a building resistance...they slide smoothly and then just stop when the air intake is wide open. Like they are hitting something and not supposed to move any further.
Click to expand...

Are the bodies separated?
 
:confused::confused::confused:

I'm stumped. There really isn't much that can hold it in, unless all the slide bores got damaged in the same place and that doesn't seem too likely.

Are they totally stock???
 
There are only three things, that I could think of, which would not allow the slide to be removed. damage to the bore, damage to the slide or crud/rust/damage on (to) the needle which stops the needle from being extracted through the 'jet-needle'.

you can try removing the lifter arm while the slide is still in the bore and see if you can remove the needle.
***be careful those screws can be tight and you could damage the tab that indexes the slide.***
 
Last edited:
rustybronco said:
There are only three things, that I could think of, which would not allow the slide to be removed. damage to the bore, damage to the slide or crud/rust/damage on (to) the needle which stops the needle from being extracted through the 'jet-needle'.

you can try removing the lifter arm while the slide is still in the bore and see if you can remove the needle.
***be careful those screws can be tight and you could damage the tab that indexes the slide.***
Click to expand...

I got the lifter arm out along with the needle so it's just the slide in the bore. Beyond my concern as to why the slides won't come out, I really wanted to dip the carb bodies and don't know if that's smart with the slides still inside.
 
Adler said:
:confused::confused::confused:

I'm stumped. There really isn't much that can hold it in, unless all the slide bores got damaged in the same place and that doesn't seem too likely.

Are they totally stock???
Click to expand...

From everything I've seen and read...almost positive.
picture.php
 
Narrator said:
I really wanted to dip the carb bodies and don't know if that's smart with the slides still inside.
Click to expand...
You can...

try one and see if the slide will remove after it comes out from the dip.
 
Last edited:
I just noticed you are in Orlando. Be more than happy to help you if you want to bring it by sometime. I also have some extra carbs parts. I might not be too far from you.

I watched the video but I can't understand why it won't come out. Strange.

David
 
I forced the slide assembly out of the one that was dipped. I doesn't want to go back in unless I flip it upside down. Then it slides in until the bottom (now the top)of the assembly reaches the top of the bore.
After measuring, it seems as though the bottom of the slide assembly isn't a perfect circle and is off by .09mm at it's base. Thinking about tracking down another assembly to see if that's the problem. Weird that all four would be bad.

I would really appreciate another set of eyes on this PortDave.... just let me know where and when.
 
I had a set of VM carbs where the slides wouldn't release even after extensive soaking. Put a hot air gun on the carb body and the slide fell out under it's own weight. The varnish between the body and slide doesn't get exposed to the dip but the heat melts that stuff straight away.
 
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