Suzuki GS500e 89-00
Factory Pro Series "S10"

The lightweight GS is one of the lightest entry level 500s around. Delivering pretty good top-end power with a generous serving of low-end and midrange (when the carburetion is tuned).
The Carb Recal Kit perks up the low-end and midrange power and response for quicker warm-up and more response.

Carb Recalibration Kit

CRB-S10-1.0  89-00
(for 2 screw float bowl carbs)   
(and maybe 01-02-03)
1. Choose your shipping method





Standard drop-in carb kit

The standard jetting is somewhat lean and off-idle, takeoff drivability suffers - (but mileage is GREAT!!!)

This carb kit, when properly tuned, adds more low-end / midrange and if the proper main jet is selected, more top-end power. Easy to install and tune - no slide drilling.



This S10 kit is for 500's with carbs with TWO float bowl screws.

Use our S11 kit if you have FOUR float bowl screws - S11 - click here.

 This "S10" Kit is for bikes with TWO float bowl screws, stock 122.5 main jets, which is what all of the 89-00's had.
There are SOME "01's" (which theoretically, don't exist) that we saw with different main jets in them - They had 125 (large round slotted, "604 series type mj) main jets. These "01's, un-officially, are the later, 04"ish" model carbs...... But! To complicate matters..... Many of the so-called "01's" have the "early, 89-00" TWO screw carbs, too......


So - best idea before ordering a kit for an "01" model, is to check the main jet size in a carb before ordering a kit.

To recap: On a..... "01-03" gs500: If you have a 122.5 as your stock main jet size, order the "S10" kit that's on this page. If you have a 125 or 127.5 as your stock main jet size, order the "S11" kit that's on this other page - click here

CRB-S10-3.0  89-00
(and maybe 01-02-03)
for when you've removed the stock airbox
(for 2 screw float bowl carbs)   

1. Choose your shipping method



Config 30
Carb Recalibration Kit

For when you are running a K&N RU-2790 open filter.

This carb kit, when properly tuned, adds more low-end / midrange and if the proper main jet is selected, more top-end power. Easy to install and tune - no slide drilling.



Extended Fuel Screws
Available for gs500e at



Carb Setting Tools

TL-float height gauge   $59.95

1. Choose your shipping method


The only way to accurately measure float heights. Works on nearly every carburetor.


Race setup

True Rear Wheel Horsepower Factory EC997a Eddy Current Dynamometer

2008, May 14    Rafael in Brazil






Absolutely NO carb parts sold in California.

New and improved Suzuki Teka SFI  2

with new TPS display and "MMT" Memory Module Tuner

Finally - Quick, easy, cost effective Suzuki tuning with no expensive "add-on boxes"
Suzuki cruisers and sportbikes

Please click here for more info

Contact Factory Pro
M-F, 9am - 5pm, Pacific time, -7 or -8 GMT

800 869-0497
 USA and Canada

415 883-5620

parts information

EC997 dynamometer information

Product Support /Tech SECTION
click here


Mailing / Shipping address:

Factory Pro
101c Roblar Drive
Novato, CA

And most importantly
Restart back at the HOME page and click on the red box in the top left to find the bike that you want parts for...
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EFI and Carb Tuning - Most all FI and carb tuning

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The extension of the laboratory for engines of the Swiss Federal Institute of Technology was completed in about 1935. Its architect was Rudolf Otto Salvisberg (1882-1940). He had a successful career in Berlin but returned to Switzerland after the advent of the Nazis. His architectural style was somewhat similar to that of Erich Mendelsohn. The staircase of the laboratory is in normal use but well preserved.
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