early BS38 question

[realgone]

Hi, stupid question of the day here-

I'm rebuilding a set of early bs38 carbs from a 1975 xs650.

I was about to put the diaphragm springs back in, and just noticed that the two springs that I have are different lengths.

Is this how they're supposed to be? Or did a PO mess up?

 

[TwoManyXS1Bs]

Googling "slide+springs" brought this up:

http://www.xs650.com/forum/showthread.php?t=10884

There's more....

 

[realgone]

interesting, thank you.
that thickens the plot, I suppose.
my bowls are stamped "H", and every other part looks as though it matches.
both have bs30/96 style pilots, small round mains, all stock spec sizes.
proper 256 series mixture screws, according to the carb guide. the threads go all the way to the slot.
slides match, needles match, proper spec4N8.
but the springs, these... springs.
one has about 35 coils, and is 6" long.
the other has about 30 coils and is 5" long.
driving me nuts.
I want to button these up!

 

[realgone]

I have a few boxes of parts lying around from another bike that came with the 75.
I think it's a 77, and the bs38's are slightly different.
my 75 has plastic outlets on the bowls, the 77's are cast in the bowl.
the 77's have a bar connecting the two, and a sync screw in the middle as opposed to the 75's two individual screws.

anyhow, I popped the tops off to see the springs.
the left spring is about the same length as the left spring from the 75 at about 4 3/4".
the right spring is about 8" long, the 75's right spring is about 6".

soooo, should I put the springs from the 75 carbs back in as I found them?

I should mention that I'm drinking Heineken in the garage. It's good, but not that[ good.

Here's picture of the springs.
The two on the left are from the '75 model, the two on the right from the 77 parts bike

 

[5twins]

I would use the shorter set of springs. It appears someone has stretched the longer ones as they don't match any that came stock as they are now. I would also use the '76-'77 linked carb set. It's a better set.

 

[realgone]

Thanks fellas.