Suzuki GSX600F Katana, 88-89
Factory Pro Series "S01"

The Carb Recal Kit and the Ignition Advance Rotor perks up the low-end and midrange power and response for quicker warm-up and more response. The Transmission Detent Spring Kit really puts "snap" into the shifting.

Factory Pro / Wheelsmith Racing won lots of California AFM roadraces with our own beloved Can-a-Tuna in 1989.
Our carb kits, ignition advancers and shift kits were proven to provide the best and smoothest power and performance - making even our racebike a wonderful streetbike, too!.

Item Description

Long Boy Extended Fuel Screw set
pn: CRZ-SCR-SUZ-5020M
 with 4 new screws, springs, washers and o-rings

1. Choose your shipping method



"Long Boy"

Finger and screwdriver 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.

Make your life easier.

Remove old short stock fuel screws, old orings, 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".

Fuel screw assembly comes with:
4 Long Boy fuel screws
 4 new o-rings
4 new washers
4 new springs




International buyers will be billed an additional $18 for shipping


Standard drop-in carb kit

The 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!

with filters


Config 30 carb kit

Requires removal of stock airbox and running K&N or equivalent individual air filters. Otherwise, it is a drop-in kit. Low-end response is as good as, if not better than stock carb tuning.



Ignition Advancer Rotor

This simple, bolt-on advance kit advances the timing. 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 and quicker warm-up.

Installs with a socket set, a 5mm and 6mm allen wrench and a 19mm wrench. It's right under the right side engine cover (the palm sized one). It only goes on one way and no oil leaks out when the cover is off.

SHFT-PRO-SUZ-3    $139.95
(MicroBearing detent arm, detent spring and oil pan gasket)

1. Choose your shipping method


Microbearing Detent Arm
Pro Shift Kit
Includes Factory Pro Spring and Factory Pro MicroBearing Detent Arm and F-Pro Shift Spring

This Pro Shift Kit includes the Microbearing Detent Arm. This kit shifts easier than the below Spring Kit.

Make shifting MUCH slicker, quicker and virtually eliminate missed shifts. Especially 2nd gear.
This is the kit that puts "snap' back into the trusty Kat.

Helps prevents shift fork and gear engagement dog damage caused by missed shifts. Especially 2nd gear.

No case splitting required. If you can change an oil pan gasket, you can do this. 2-3 hours labor (if you are taking your time).

TL-float height gauge

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 screws?  Here is where they are located:


Misc. Information

Ignition trigger OEM part numbers

GSX600F Katana (unrestricted) 88-95 33120-19C00 Use Factory Pro RTR-SUZ-4
GSX600F Katana (unrestricted) 96-99 33120-19C20 Similar timing as "19C00", cosmetic change. Use Factory Pro RTR-SUZ-4
GSX600F Katana (CA model) 88-93 33120-48B20 Use Factory Pro RTR-SUZ-4. Upgrades to 49 state low rpm timing. Improves low rpm / off-idle response.
GSX600F Katana (CA model) 94-96 33120-26D00 Use Factory Pro RTR-SUZ-4. Upgrades to 49 state low rpm timing. Improves low rpm / off-idle response.
GSX600F Katana (CA model) 97-99 33120-19C20 Similar timing as "19C00". Use Factory Pro RTR-SUZ-4


Absolutely NO carb parts sold in California.

New and improved
Suzuki Teka SFI 2
with new TPS display and "MMT" Memory Module Tuner feature

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

no fax

Factory Pro
101c Roblar Drive
Novato, CA

If it's
4pm at Factory Pro it's 9am in eastern Australia.

parts information

EC997 dynamometer information

Product Support /Tech SECTION
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