k93 Bearden,Barry.jpg (20387 bytes)
Barry Bearden and his improved GPz1100
New VHR SS2r exhaust, CRB-K93-1.0 Carb Recal Kit and RTR-KAW-93-04 Ignition Advance Rotor

Kawasaki GPz1100, 95-97

Factory Pro Series "K93"

Classic, simple and reliable, the GPz1100 is one the funnest bikes to ride. It's relatively mild state of tune just begs for a bit of "tweaking".

The Carb Recal Kittm and the Ignition Advance Rotor perk up the low-end and midrange power and response for quicker warm-up and more snap. The Transmission Detent Arm Kit will make the shifting significantly crisper - with fewer misses shifts.


Finger and screwdriver adjustable fuel mixture screw kit

Long Boy Extended Fuel Screw
pn: CRZ-SCR-3518k2
 with  new extended screws, springs, washers and o-rings

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"Long Boy"
 Finger and screwdriver adjustable extended Fuel Screw assembly

Frustrated with trying to find an "almost 90 degree"  screwdriver to fine adjust your fuel screw for best idle and cruise?
Use Factory Pro's new "finger adjustable" fuel screw to adjust fuel screw for best throttle response. Traveling to high altitude? It's easy to lean out the lowend temporarily.

Make your life easier.

Remove old short stock fuel screw, old o-ring, old washer and old spring. The o-ring might be stuck in the carb, so take a light and make sure it's really out  (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".

Screw assembly kit comes with:
 new extended screws
 new springs
 new washers
 new o-rings

Item Description
(sample pic - not correct)

RTR-KAW-93-04    $109.95

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Ignition Advance Rotor

Improve throttle response and increase part throttle power.
This simple, bolt-on advance kit advances the timing 4 degrees. With stock engines with stock compression ratios, there is a slight power increase in different areas.
The biggest improvement is in part throttle power - improving corner exit speeds. Improved in-town drivability and quicker warm-up.

Note: If the carburetion is too lean at cruise already, the extra advance may make the cruise even a bit leaner (around the equivalent of ~.5x-1x turns of the fuel screw).
Probably +4 is a little bit too much advance for drag racing or top speed competition.
Suggest using the patented Adjustable RTR-ADJ-KAW-11 for 1 degree increment tuneability.


CRB-K93-1.0         $139.95 

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Standard drop-in carb kit

This 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!

CRB-K93-1.1-TI      $159.95 

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Ti ProKit carb kit

Carb kit with Titanium needles. The toughest material used in a carburetor. These needles will still be around in the millennium after next.
The kit, when properly tuned, adds more low-end / midrange and if the proper main jet is selected, more top-end power.
The "1.1 Ti" kit has the same metering ability as the above "1.0" kit.
 Easy to install and tune - no slide drilling!

CRB-K93-3.0     $149.95
without filters

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This kit, when properly tuned, adds more power everywhere, especially up top. Easy to install and tune - no slide drilling!
 Requires the use of "pod" individual filters.

(add $20 for hybrid ceramic bearing)

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Trans Detent Arm Kit

Make shifting MUCH quicker and virtually eliminate missed shifts. This is the same type of kit that Muzzy, Vance and Hines, Yamaha Racing has used.

TL-float height gauge      

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

Got a picture and comment about Factory Pro products on your GPZ?
Email us for possible inclusion on this page - We welcome your comments.


True Rear Wheel Horsepower tm Factory EC997atm Eddy Current Dynamometer






EC997, True HP, True Rear Wheel HP, Carb Recalibration Kits, 1.7-RK, RaceKit, ProKit, Config 10, Config 30, AirBox Plus, AFK
are trademarks of Factory Pro Tuning, San Rafael, CA

Copyright 1997-1999 Factory Pro Tuning, San Rafael, CA

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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

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.