Carb parts reassembly

BeetsnGreens

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Hey XS650 crew,
I am reassembling my carburetors and have two questions about certain parts and how they are arranged/ where they go.

These are the 78-79 BS38 carbs

1: I can't remember how the parts of this slide needle assembly goes. I already put it back together the way the picture shows:

IMG_20190524_201810.jpg


The needle has the clip, i put the spring under it, then put the washer over that and the plastic donut thing over the washer, other plastic needle thing then circlip (Picture is upside down from my description). I hope that's correct. What I am really unsure about is what side the washer goes (under or over the clip on the needle)

2: What is this? Maybe apart of the choke?

IMG_20190524_205057.jpg


3: is there a good exploded view of these carbs?

Thanks!

-Tom

PS you guys are awesome
 
Never noticed it before, but the parts drawing left the little washer out. Anyways, the little washer goes UNDER the little circlip and on top of the little spring.
Your second pic shows part #s 53 and 54 in the diagram that gggGary posted.
 
Last edited:
I don't think that's right. On all the ones I've taken apart, I've found the washer under the e-clip. I'm sure many of these, probably most of them, were never apart before .....

TJkQOok.jpg


JBHxvr2.jpg


I think the washer is placed below the e-clip, between it and the spring, to keep the spring from catching on the e-clip.

The assembly will work as you have it but you have altered the needle height slightly. You have, in effect, shimmed it down or leaner. The washer is about a half MM thick. Needle clip positions alter the needle height by 1mm so you have shimmed the needle 1/2 step leaner. This might effect a totally stock bike, probably not so much on a modded one with larger mains installed. The needle usually requires leaning with larger mains anyway.
 
I don't think that's right. On all the ones I've taken apart, I've found the washer under the e-clip. I'm sure many of these, probably most of them, were never apart before .....
Oh well, I guess I had a 50/50 chance of getting that right. I agree with 5twins, and I am changing my first response accordingly...
 
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