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  #1  
Old 7th February 2013
Rigaman Rigaman is offline
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Default Super B float needle

I accidently left my gas on the other day. I have a 77 xlch with a S&S super B. I came out an hour and a half later, and there was gas all over my garage floor. I looked into my carb, and there was gas pooled up inside it. Since the bike sits on a slight lean on the kick stand, all the gas poured into my motor. I tipped the bike the other way, and alot just poured out of the intake/carb.

I took my carb off, and the float needle just doesnt look right. In the parts breakdown it shows 2 different kinds. One for the fork style float, and one for the newer style. I have the fork style float.

I have searched and it shows these needles with a pointed tip. Mine is just a flat cylinder with a beveled tip, that is flat on top.

Is this just a very early style needle? I cant get it to seat right. My float is set right, and the carb is very clean. Not any dirt or anything keeping it from closing right.

If anyone has a solution to this, please let me know. I have been trying to find a new needle, but no one seemes to have them in stock. If anyone has one I will pay up for it. I would like to ride my bike.

Here is a picture of my float needle.

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  #2  
Old 8th February 2013
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I think the rubber bit on the end has dropped off yours??, I've rebuilt 30+ B's in my time and never seen a needle looking like that

See link below, needles shown about 3rd row down in l/h column

http://www.sscycle.com/product/cart....esults&search=
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  #3  
Old 8th February 2013
Rigaman Rigaman is offline
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Default

Ya. Its real weird. All the ones I have seen have the rubber tip, and has vertical ridges running down the whole needle.

I really need one very bad. Only way for me to get one is by having a dealer order one from S&S, and it will take over a week, probably 2 they said. If you have one you could sell me, I could use it.
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  #4  
Old 8th February 2013
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I'd have a dozen easy sitting in my carb rebuilt spare parts kit, but unless your in Australia it will take an eternity to get to you!!
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  #5  
Old 8th February 2013
Rigaman Rigaman is offline
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Default

The funny thing is.. This bike has run very well for years. I never left the gas on like that though. It always would drip a little gas out the carb while running at idle.....

Only thing is.. If I get a new needle with the rubber tip, I will have to adjust the float. Or I wonder if my float is set way off from that piece missing.
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  #6  
Old 8th February 2013
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And there is no sign of that piece, in the float bowl ... ?
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  #7  
Old 8th February 2013
Rigaman Rigaman is offline
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No. Nothing. All I can think is the previous owner unscrewed the inlet/seat piece and it fell out.

Anyone know a good place to buy one of these?
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  #8  
Old 8th February 2013
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Default

Quote:
Originally Posted by Rigaman View Post
I accidently left my gas on the other day. I have a 77 xlch with a S&S super B. I came out an hour and a half later, and there was gas all over my garage floor. I looked into my carb, and there was gas pooled up inside it. Since the bike sits on a slight lean on the kick stand, all the gas poured into my motor. I tipped the bike the other way, and alot just poured out of the intake/carb.

I took my carb off, and the float needle just doesnt look right. In the parts breakdown it shows 2 different kinds. One for the fork style float, and one for the newer style. I have the fork style float.

I have searched and it shows these needles with a pointed tip. Mine is just a flat cylinder with a beveled tip, that is flat on top.

Is this just a very early style needle? I cant get it to seat right. My float is set right, and the carb is very clean. Not any dirt or anything keeping it from closing right.

If anyone has a solution to this, please let me know. I have been trying to find a new needle, but no one seemes to have them in stock. If anyone has one I will pay up for it. I would like to ride my bike.

Here is a picture of my float needle.

do not toss that stuff. its the best s&s ever made. it is easily repirable.

Quote:
Originally Posted by russzx6 View Post
I think the rubber bit on the end has dropped off yours??, I've rebuilt 30+ B's in my time and never seen a needle looking like that
pay attention to this then. your gonna learn sumtin new.


Quote:
Originally Posted by Rigaman View Post
Ya. Its real weird. All the ones I have seen have the rubber tip, and has vertical ridges running down the whole needle.
correct these type also use a different inlet fitting than yours.

Quote:
Originally Posted by Rigaman View Post
I really need one very bad. Only way for me to get one is by having a dealer order one from S&S, and it will take over a week, probably 2 they said. If you have one you could sell me, I could use it.
1st off you can still ride. just remember to shut gas off.

Quote:
Originally Posted by Rigaman View Post
The funny thing is.. This bike has run very well for years. I never left the gas on like that though. It always would drip a little gas out the carb while running at idle.....
this too is a sign of a worn solid needle.


Quote:
Originally Posted by Rigaman View Post
Only thing is.. If I get a new needle with the rubber tip, I will have to adjust the float.
yes float will need to be checked


Quote:
Originally Posted by IronMick View Post
And there is no sign of that piece, in the float bowl ... ?
no. because there is no missing piece.
----
that is the early super b setup.
in late 70's s&s had to go to the low flow rubber tipped needle seating against a much smaller seat dia to deal with fuel over flow probs from the govt mandated fuel tank pressure cap.

that gave partially acceptable 'crap- i left the gas on' results.
to get even more sure seating the next step was the spring loaded rubber needle.

this needle required a lower active float height. supers with low floats just dont work as good as their earlier brothers with high float rubber needle.

and the high float rubber needle carbs dont work as good as high float solid needle carbs. the smaller inlet area of the rubber seat required more float drop for same fuel flow than the earlier solid did.

performance of super b is better when fuel level can be maintained at a high level while riding. the earliest carbs are best at this.

if you got a skilled machinist have him cut a new 45 degree chamfer at the seat end of your needle. remove no more material than necessary to clean up the worn area. must be smooth surface finish.

do not mess with brass seat fitting.
this should bring you back to good.

or if ya want pm me.
send me the entire bowl assm and ill fix it up for you.
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  #9  
Old 8th February 2013
Rigaman Rigaman is offline
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Thanks man! I knew it looked like it was normal, because it did seat, just not that well. I looked at it and thought there was no way it could have had a rubber tip on it, because it would make the float way too low. Or so thats what it seemed to me. Since there was a 45 degree champfer on the solid needle, and no markings of anything holding on a rubber tip, I figured it was either a real early super b, or had a special needle.

The other thing is. My xlch is a 77. I have the original carb, and I took the float bowl off it today, thinking it would be all gross inside. It looked like gas has never been in it. So it made me think when the bike was bought new, the original owner put the super b on very soon after he bought it. The bike was a 3 owner bike, and the original owner had it for all but about the last few years. I got it from someone I know real well who didn't do anything to it.

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  #10  
Old 8th February 2013
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russzx6 russzx6 is offline
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Aha, thanks for the info DD, so if you were stuck you could possibly just grab some valve grinding paste and relap the seat for a temporary fix?
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