Carb Float pin 1100f

[Jeb]

Hi,

...I'm trying to remove the pin that holds the floats in, it's a bit reluctant to move, do they have to be drifted out?

Cheers 

[Dezza]

Can you post a pic? The 1100f (powerscreen) has BST34 carbs, which are basically the same as GSXR1100 slabby 'tintop' carbs (apart from a few minor differences). The floats are held in on plastic 'cages' that pull out from an o'ring with a bit of careful wriggling. Removing a pin as for BS carbs used on aircooled bikes should not be necesssary. As for anything (especially carbs) before twatting something with a hammer think carefully and give whatever is not supposed to move a lot of support or else it may all go tits-up.

[Jeb]

Pics enc

[Captain Chaos]

1 hour ago, Jeb said:

do they have to be drifted out?

yes. As Dezza said, be careful when twatting it with a hammer, support the metal bit or it will break.

[Jeb]

Ok, will give it a go....

[TonyGee]

them posts are very fragile so be very carful, the pin is tight at the head end as its slightly wider to hold it in the post so support that post.  

[Jeb]

Yeah they look it...gonna take my time with this!

[Dezza]

Try a small pair of pipe pliers. If the pin is protruding slightly you can then force the pin back very slightly creating a gap between the pin and the carb post at the other side. If you do this, then you can sometimes get a strong blade in the gap to begin to force the pin out without using a punch. If this does not work, use a fine punch supporting the carb post at the end you're hitting. Doing this can be very awkward but don't be tempted to just wack it or the post will snap.

[Jeb]

Thanks...I think I'm going to give up on replacing the needle valve, the carbs dont leak anyway and I'm not going to risk snapping a post....on all of the other bikes I've owned the pin has always slid out no probs...nevermind

[TonyGee]

I had an old small screwdriver that I cut a groove in the blade, and gently tap in-between the head of the pin and the post if theirs enough room, the downward tap is safer that a side tap.   

[Jeb]

That might be the only option I suppose it would have to be wafer thin though...

[Captain Chaos]

32 minutes ago, Jeb said:

I'm not going to risk snapping a post...

safest bet is go EFI and turbo. No more float pins to worry about

[Locomotion]

I used an automatic centre punch to remove stiff pins on my powerscreen

[Jeb]

What a good idea...will get one and give it a go. Cheers 

[Swiss Toni]

It works. Or a small nail, grind the point off! 
But, don’t forget to support the bottom end with a small socket. It’s really important!

No support ….. broken post!

Edited April 12, 2023 by Swiss Toni

[Jeb]

2 options now!..I'm really paranoid about snapping the castings so will go slowly. Cheers 

[bluedog59]

Maybe a little heat from a soldering iron would help loosen it's grip.

[Jeb]

Will use in conjunction with the other suggestions cheers