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GSXR1100 Slingshot Carb Conversion

  • Thread starter Thread starter ozgs
  • Start date Start date
O

ozgs

Guest
Hi Guys,
As the title says, looking at swapping these carbs (BST36SS) onto an otherwise standard GSX1100SZ, apart from 4 into 1. My question is will the standard jetting get me on the road?

I will have oval K&N filters fitted. The carbs are apart at the moment and look in pretty good condition, and I am just going through them replacing all of the orings and will reset the float height before I put them back on. from what I have read in other posts it is necessary to lower the fuel level a couple of mm to avoid flooding.
 
rapidray said:
You will need, at a MINIMUM, adjustable needles. A jet kit would be better. Ray.
Click to expand...


Ray, how do the Dyno jet needles/emulsion tubes work (DJ-3136) for the 89-92 GSXR 1100 work compared to the Factory Pro needles and stock emulsion tubes?

At some point after Bill gets a stock 1100 setup we are going to put the WBO2 sensor on a pods/pipe/BST36SS setup and see how it tunes. See if we can get come calibrations relative to the BS36
 
posplayr said:
Ray, how do the Dyno jet needles/emulsion tubes work (DJ-3136) for the 89-92 GSXR 1100 work compared to the Factory Pro needles and stock emulsion tubes?

At some point after Bill gets a stock 1100 setup we are going to put the WBO2 sensor on a pods/pipe/BST36SS setup and see how it tunes. See if we can get come calibrations relative to the BS36
Click to expand...
Yes!
The float heigth is hard to obtain without modifying the tang on the float. These carbs (BST) were meant to be mounted at an angle. Look at the float bowl.
I set a rack up for a guy but he has yet to mount them. My notes on this project are at home but I'll post them when I return.
The problem with these carbs is the slide guides wear out and wallow out the emulsion tube. I have even seen some needles that had a hook shape. If Jim still has that link I sent him you can still purchase them new but not from Suzuki.
 
Last edited:
I noticed one of our members (Mike?) has posted on his website http://www.theflyingbanana.com/ some detail on this mod. The way I read this initially was just raising the needles to the 4th groove and it was plug and play with the standard jetting but then re-read this page and noticed he talks about DJ needle with spacer washer and 150 mains. The standard mains are 123.5 in my carbs.

On Rays advice in previous threads I have emailed Aarc at Factory pro for guidance and am waiting on a response.

I am hopeful of getting a good baseline on this, from what I can see on these carbs there appears to be minimal wear.
 
What throttle cable are you using with the slingshot carbs? Standard gs1100 is to long.
 
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