IDENTIFYING CARBS- BS34 OR BS38??????????????

[the-oz-slider]

OK, |I know this has probably been done to death before but I cant find any links to the subject, so humour me please.......
I have a XS1-B that didnt have carvbs when I acquired it and I had a spare set from my last XS1 rebuild, but when i ordered a carb kit for the XS1 carbs [or so I thought] I dont think I got the correct kit and its raised the issue of whether my spare carbs are BS38 or BS34......
On the XS1 the carbs have a thin strip of stainless that operates the choke on the second crab, whereas the set of carbs I have has the lever on the left and the two carbs have two balance tube between them, one being the choke.......
So what else should I look for to identify the series, other than another set of carbs??
Al

 

[angus67]

By the description, ide say late 70’s 38s a pic would be alot easier though

 

[weaselbeak]

Just use google images to see what each looks like. They are very different.

 

[the-oz-slider]

pics attac

hed

 

[the-oz-slider]

more....

 

[the-oz-slider]

and more

 

[the-oz-slider]

and more still.....

 

[TwoManyXS1Bs]

This is a quickee chart we cooked-up to help ID carbs.
Your thicker aluminum tops show them to be BS38s.

Lowered floor (below the slide), single choke with interconnecting hose,
makes that a 74-75 carb...

 

[the-oz-slider]

yeeesss....with help from many people much smarter than me, I worked out that my carbs are indeedie 74-75 BS38's and I have a parts kit and will throw them on the bike this weekend..........
That's if I have time after working my [dirty word]1979 Honda CBX, or is it the Kawasaki H1?????
Its all fun and games that's for sure.............too many project, too little money and time.............

 

[5twins]

You have to be careful with those aftermarket carb kits. Many contain incorrect jet sizes and some have generic needles that are the wrong length. And by wrong, I mean they're really wrong, like 5mm different in length. That much plain won't work.

 

[the-oz-slider]

yes I already have much confusion about the needle length, as mine are way shorter than in our XS1........\
My kits are from Mikes [Canada Div.] and I thought they should have needles included but didn't so I have a bit more buying to do yet......