WTB BS34 Butterflys

sentricity · Full Member Joined: Sep 09, 2007 Posts: 22 Location: NC

Well I was pulling my carbs apart for cleaning and one butterfly came easy and the the other got all messed up. I would like two to match. They are marked with 135 on the face. It is an 83 Heritage Special with BS 34 CV carbs.

xsjohn · Posted: November 26, 2008, 12:11 pm Post subject: Re: WTB BS34 Butterflys

Why are we taking the butterflys out.....changing throttle shaft seals...??

xsjohn

sentricity · Full Member Joined: Sep 09, 2007 Posts: 22 Location: NC

Yeah, just wanted to pull everything apart and see how it all works and clean everything. I know........ I have been doing this since I was a kid. I had my new toys apart 15 mins after unwrapping them on Christmas day.

xsjohn · Posted: November 26, 2008, 12:33 pm Post subject: Re: WTB BS34 Butterflys

What's messed up.......xsjohn

sentricity · Full Member Joined: Sep 09, 2007 Posts: 22 Location: NC

The butterfly twisted as I was pulling it out and got wedged. I didn't want to, but had to resort to grabbing it with a vise grips and the upper edge that seals against the carb passage got kinked and bent and deformed a little bit. I'm sure it is enough to cause all kinds of problems.

xsjohn · Posted: November 26, 2008, 6:04 pm Post subject: Re: WTB BS34 Butterflys

Guess it's PMF'd.....

xsjohn

sentricity · Full Member Joined: Sep 09, 2007 Posts: 22 Location: NC

Yup. You got any laying around?

darmstro · Full Member Joined: Sep 19, 2008 Posts: 24

I have a set of BS34's sitting on my workbench that I'd like to get rid of as a complete set. I'll let them go cheap if you're willing to buy them complete. They're set up for a 1977 XS500, but most of the parts aside from the jets should be interchangeable. Let me know if you want them.

Best way to reach me is by email. enoddon @ hotmail.com

sentricity · Full Member Joined: Sep 09, 2007 Posts: 22 Location: NC

Sorry guys I got a new one. It is together and pretty. Not running yet but pretty. Not the carbs fault.

whyaskwhy · Posted: January 20, 2009, 5:28 pm Post subject: Re: WTB BS34 Butterflys

sentricity

Same thing happened to me. Same carb, same model and year, and same number stamped on butterfly.

ine was caused by a machining burr left behind when the shaft was tapped for one of the m3 screws. I wrecked the thing before I knew it, and I try to work with a lot of care.

Will post the serial no. here for fun. We might have numbers that are very close to one another.

ost important, where did you get the replacement? I have searched the net with indifferent results.

whyaskwhy

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