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NOTE: These are measured for fitment by the mounting diameter on the carb,
             not the carburetor bore or throat size.

 
Also note:  The come equipped with the higher flow rate, stainless silver debris screens.
 


a customer supplied jetting specs for his GS750:

I bumped them up 1 each and mix screw 2.5 turns out with vance and hines exhaust 


FITS 1980 GS550 and other GS
'81 AND UP KZ1000
with 55mm carb mounts

YES, YOU GET ALL FOUR STACKS!

Note: you must measure for frame clearance
as well as mount diameter,
these stacks are approx 3" long,
some smaller bikes have frame rail interference
issues.  
  

You can use my shorty stack version,  cut and paste ebay store link below,
https://www.ebay.com/itm/233636450776

or see ebay item #:233636450776
 

you get 4 full taper-Type
velocity stacks
,
(three are still wrapped up in the pictures)
sold as set of four, setscrews and debris screens included!
 
for  KZ1000  81 and up,  
(and other 55mm OD carbs)
GS series with 54-55mm carb mount flange

65mm or 2.5" in length or 76mm 3" length (your choice)
55mm ID at carb attachment opening
65mm OD at carb end
75mm widest OD at bellmouth

unlike some of the crappier cheap pod type filters,
these go from 55mm at the mount, and only step down
to 52mm actual throat ID where it meets the carb on the inside.

This keeps them from covering any of the air jet passages
on the back side of the carburetor.

There are no better designed velocity stacks, at any price!



I also have Machined finish, SEE EBAY#:
  
232225823683 
 

YES, i can sell 1, 2 or 3 stacks,
if you have a triple, or twin, or single with the same size!

 


 

Color/Finish: Polished Aluminum
 
Fits: ANY SUZUKI and KAWASAKI
KZ1000 LATER MODELS
with 54-55mm carb mouth diameter.
please measure first!

Possibly other make/models with 54-55mm-
you MUST MEASURE!!!!
 
Material:   Billet Aluminum
 

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ACTUAL EBAY FEEDBACK:


Absolutely first class , what else is there to say .

Buyer: During past month
 SUZUKI MIKUNI RS GS550 GS750 GS1000 54mm 55mm Velocity stacks Polished Stack

all good!!!

Buyer: During past month
 SUZUKI MIKUNI RS GS550 GS750 GS1000 54mm 55mm Velocity stacks Polished Stack (#232


Thanks again!!!!! Buyer: Jun-05-14 13:05
    GS1000    54/55mm Velocity stacks 

Contact me with any problems.
Buyer to pay initial shipping cost as well as return shipping,
 if returned for reasons other than defective item.

Please contact me before leaving neutral or negative feedback!
I have a 100% feedback rating!
as always, do your research first, and ask questions first before buying!