Suzuki GSX-R1100, 89-92

In 1989, the GSX-R1100 gained a top-end rush that the 87-88's were lacking in. We raced both of them in the WERA Suzuki Cup series - with the '89 still being competitive against the heavier, water-cooled 1993 GSX-Rs up until '93.
Sadly, the '89 was retired at Road Atlanta, where it became shorter, narrower and not as straight as a racebike should be, as it left the track to become an engine donor for a mini-sprint car...
Great bikes -- With the addition of the later GSX-R forks, it's even better!

As a suggestion, use the Config #30 kit with the BMC #2922 individual air filters for 8-10 hp peak increase over a properly jetted bike with a stock airbox.

Hint! - Do not try to remove the back of the stock airbox and try to make more hp than the open air filter setup - 2 weeks of work says - nope. With the back of the airbox removed, the intake "velocity stacks" are too long, totally disrupting the high rpm fuel delivery curve in a way that's impossible to fix.


air cooled 1100 with 38mm 750 carbs

Long Boy Extended Fuel Screw set  $89.95
Factory Pro pn: 5020M
for gsxr1100 w 38mm 750 carbs

 with 4 new screws, springs, washers and o-rings

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"Long Boy"            Finger adj. extended Fuel Screw Kit

Frustrated with trying to find an "almost 90 degree"  screwdriver to fine adjust your fuel screws for best idle and cruise?
Use Factory Pro's new "finger adjustable" fuel screws to adjust fuel screws for best throttle response. Traveling to high altitude? It's easy to lean out the lowend temporarily.Knurled for easy finger adjust for weather or altitude or highway cruising mileage
Straight knurled for pushing with a flat bladed screwdriver if your hand doesn't fit.
Screwdriver slotted for if you want to use a short or right angled screwdriver (so a shop mechanic is happy)

Make your life easier.

Remove old short stock fuel screws, old o-rings, old washers and old spring. The o-ring might be stuck in the carb, so, take a light and make sure it's really out if it didn't come out with the screw (or you can't find it after you took out the screw)
Use a small bent wire to pull it out if it doesn't drop out. Keep the old parts for "spares".

New fuel screw kit comes with:
4 Long Boy fuel screws
 4 new o-ring
4 new washer
4 new spring

(uses  2922 filters - not included)
**38mm carbs**
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Config 30 carb kit

1100cc / 38mm "750" carb conversion

Have a set of 90-92,  38mm  GSX-R750 carbs? Want to run them on the 1100? Use this 3.0 kit and matching 2922 BMC or K&N air filters.
Note: When procuring 750 carbs, make sure that you get carbs from an air cooled 750. The carb spacing is different on the water cooled 750's.
Note! When replacing a dj kit with Factory Pro components, be sure to replace the emulsion tubes with stock, Suzuki tubes (available from Suzuki). The dynojet emulsion tubes will not work with Suzuki or Factory Pro needles. The Mikuni emulsion tubes have ID numbers and the dynojet tubes are not marked with any part number.

It's possible that the water cooled 750 carbs will fit onto the air cooled 1100 and 1200 engines. You need to use an additional set of 1100
"inside" intake rubbers and put them on the outside cylinders. This is just something that someone told me - I would try with your 2-3 stacks mounted on 1-4 cylinders first.

John Berrman, UK

RTR-SUZ-1  (old # RTR-SUZ-2)   
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Ignition Advance Kit

This Factory Pro rotor advances the timing 5 degrees over the usual standard "19C0" rotor. With stock engines with stock compression ratios, there is more power everywhere. Part throttle power is better - helping corner exit speeds. Improved in-town drivability.
A "Must Do!" mod!


F-Pro Shift Kits

SHFT-PRO-SUZ-3  $139.95
(add $20 for Hybrid ceramic bearing upgrade)

F-Pro steel microbearing detent arm, F-Pro shift spring, oil pan gasket

("Legacy kit" - allow 1-2 weeks for building)

1. Choose your shipping method

Microbearing Trans Detent Arm and Spring and oil pan gasket Kit

Make shifting quicker and virtually eliminate missed shifts. This is exactly the same type of kit that Yamaha Racing has used.

This kit will not fix a damaged transmission - If the bike is constantly kicking out of second gear, you really need to split the cases and replace 2nd gear, the gear it mates with and the second gear shift fork.

TL-float height
gauge $59.95
1. Choose your shipping method
The only way to accurately measure float heights.

Works on nearly every carburetor......

True Rear Wheel Horsepower - Factory EC997a Eddy Current Dynamometer

Looking for your idle mixture fuel screws? 

Here is where they are located:




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...
restart at HOME page


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EFI and Carb Tuning - Most all FI and carb tuning

by Wheelsmith Racing

Flight Training - train with AMA race winner Todd Harrington.

The Harringtons own American Flyers, one of the most established flight training facilities in the USA.

 8 locations

The Rich Oliver Mystery School will help you discover your hidden inner strength. 
It will challenge you. It will teach you a new way of thinking, and a new way of riding. You can take your riding to an exciting new level!  

We use a variety of proven drills and training techniques. 
Practicing these techniques with our Yamaha dirt track trainers will enhance your abilities both on the track or the street.  

It doesn't matter what you ride or race, the Rich Oliver Mystery School improves everyone's skill level and mindset!

WW2 vintage flying Special

Book a sightseeing flight over the Wine Country or a Kamikaze aerobatic flight or a biplane flight over famous Sonoma Raceway, the Golden Gate Bridge and the San Francisco Bay for one or two during the spring and get a free souvenir t shirt!
(NEW!  Ask about the P-40 flights!)

707 938 2444

Just tell them that you saw this on the Factory Pro website!
Northern California's most unforgettable flying experience.  No experience required.  Open weekends!

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.
Edited to the tunes of Chemical Residue by Herbie Hancock.