Kawasaki ZX-9R, C1-C2
(Factory Pro "K67" Series)

Factory Pro's
Carburetor Recalibration Kit
The world's
Best Kawi jet kits
Factory Pro's
EVO Shift STAR kit!
The ULTIMATE Shifting
Factory Pro's
Ignition Advance Rotor
improves lowend and midrange and a bit more top end
Factory Pro's
Detent Arm Shift Kits
Our original Pro Shift Kit
BMC Air Filter Factory Pro's
Billet Engine Covers


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

Shift  STAR kit

(sample pic only)

 SHFT-EVO-K67     $239.95
(Factory Pro Star, Microbearing Detent Arm, Factory Pro Detent Arm Spring, shift cover gasket)Legacy Kit - Allow 1-2 weeks for assembly

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Evo Shift STAR kit

Quicker shifts.
Easier shifts.
Fewer missed shifts.
Fewer missed shifts means less transmission fork and gear dog wear
(bending, rounding and galling).

All in all - it just makes the trans shift like a hot knife through


It's everything that I ever wanted to do to a shift mechanism -
Slightly stronger detent spring - a new MicroBearing detent arm and the final piece... A completely redesigned, empirically refined, multi angled, variable radii, repeaked and valleyed:
Shift STAR
This part will change the feel of the bike as a whole. The shifting effort is about the same - but the speed at which the gears actually engage is dramatically improved - Quicker, easier, shifting - A "twitch" on the lever and the throttle and you are in the next gear! Perfect for track use and road riding for effortless downshifts into a corner and just a "tap" to upshift without any more than a "twitch" off the throttle -
That's not even mentioning that missed shifts virtually disappear.In town? Low rpm cruise in second - shift to third? So quick and smooth  - NO more clunky, lazy shifting in town - As I said - it's totally different and improved -
Proven concept - Virtually all the Factory Pro Support riders in the AMA and WERA multi- Champions Vesrah Racing tested and proved the EVO-7 Stars in 2003.
Stock shift performance that everybody used to take as a "given" will be regarded as "slow and lazy" after riding a zx9 with this kit -
Kit includes a new detent arm with a low friction microbearing roller, a performance shift spring and the NEW Factory Pro EVO Detent Star.
Make shifting MUCH quicker and virtually eliminate missed shifts.

Just remove countershaft sprocket, water pump and shift mechanism cover.


800 869-0497

Carburetor Tuning Kits


STD drop-in carb recal kit

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Best "drop-in" carb kit available.

Boosts power a bit at full throttle, improves throttle response and wheelie ability. Definitely pulls harder out of 2nd and 3rd gear corners.
No slide drilling required!

Fits, USA and German models, verified, December 10, 2004

USA carb specs

DE carb specs
(compliments of Mathias Droll)

Most 98-99 ZX-9Rs are OK on the high rpm / full throttle fuel delivery curve. To diagnose absolutely, it's required to run the bike on an EC997 Low Inertia Eddy Current dynamometer WITH the Integrated 4 Gas Analyzer to map the fuel curve to see if there is power to be had by reworking the fuel curve. Contact your nearest 4 Gas Exhaust Gas Analyzer equipped Factory Pro Tuning Center. Locations - click here.

CRB-K67-1.1-ti      $169.95

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Same as 1.0 kit, but with Titanium needles, also a drop-in kit. No slide drilling required.

Needle Jet Replacement

HDJ showing 6 peripheral micro fuel passageways.

side view HDJ emulsion tube

Needle jets worn out?

High mileage?
 Bike runs too rich at low rpm because of worn needle jets?
Send in your carbs and we can replace them with patented HDJ style needle jets.
415 491 5920

Let Factory Pro replace your worn "non-replaceable" needle jets and convert your carbs into HDJ (High Dispersement Jet) style needle jet carbs.

Better throttle response - potentially better mileage - 2% to 5% more power  - augmented part throttle response.

New HDJ style F-Pro needle jets - featuring Multiple Jet  jet fueling, increased acc pump function, high capacity "needle jet well".
Better throttle response and better fuel atomization for more power and more fuel efficient power.
  zx9r, 94-97,98-99 and 02, all countries       K67-09 

for 4 needle jets and installation + Shipping and handling

Call 800 869-0497 9-4 pacific time, m-f

or email
Kaw CARB Float  Valve TECH NOTES: Most Kaws tune well and easily with the Factory Pro kits - however, some Kaws have a problem with low speed operation -
If that's the case, and you've adjusted and reset the float height leaner and 18mm still isn't lean enough at cruise, and especially if the problem is on 1, 2 or 3 cylinders, please inspect the float valves for the dreaded  rubber tip shrinkage.
Some fuel additives attack the float valve rubber tip and cause it to shrink and distort. Now, nobody needs a shrunken, distorted rubber and, being non-round, will allow not shut off fuel in the carbs with the bad float valves and cause very rough low speed running (as the fuel level keeps rising in the carb bowl).
It's not a "common problem", but if the normal tuning stuff doesn't work...........
Carb top Allen Screw kit

Carb top Allen Screw Kit

15pcs 10mm shouldered 4mm allens
1pc 4mm x 16mm allen screw (for choke bracket)

zx9r, 98-99


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Ignition Components

RTR-KAW-67-02  $99.95

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Ignition Advance Rotor.

Adds power at ALL part throttle positions. That equates to more "snap" in throttle response for you!

RTR-KAW-67-02  $99.95

+2 = best high rpm and a bit more low and mid and + high rpm

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Ignition Advance Rotor.

Adds power at ALL part throttle positions. That equates to more "snap" in throttle response for you!

RTR-KAW-67-06  $109.95

+6 = most lowend and midrange but requires jetting

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Ignition Advance Rotor.

Adds power at ALL part throttle positions. That equates to more "snap" in throttle response for you!

Air Filters

BMC Air Filter
FI-BMC-16803S   $79.95

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As seen in Sport Rider and Motorcyclist project 2001 bike!
Factory Pro and BMC  have produced the finest cleanable air filters available. Manufactured in Europe to craftsman's standards, if any filter would last 1,000,000 miles - these would!

Billet Engine Covers -  Factory Pro



For race or street use. Absolutely the strongest cover you can buy. Highest strength / weight ratio available.
 Can be show polished to a mirror finish.
Includes: gaskets, if required, and replacement stainless steel allen screws, as required.

COV-K67-RH-KT    RH $69.95

International buyers will be billed $18 additional for shipping

Trans Shift Improvement Kits

SHFT-PRO-KAW-67   $139.95

inc: Microbearing Detent Arm, F-Pro Shift Spring and gasket
1. Choose your shipping method


Make shifting quicker and virtually eliminate missed shifts when it's done. Not as elegant in feel as the above Shift STAR kit, but will certainly help with missed shifts and damage caused by missed shifts.

Until the Shift Star kit was released, this was our premier kit.

Tools for Tuning

TL-float height

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The only way to accurately measure float heights. Works on nearly every carburetor. Float height measurement affects the fuel level in a carb - Fuel level controls the amount of fuel that the carb delivers at low rpm and cruise.


Hey Marc,

Sorry it took so long to get back to you, things have been a little busy around here.

Anyway, here goes.

Here's a run down on what's happened.

          I bought myself a 98 zx9r race bike last year and from the get go it never ran well. It had a full Akropovic system, factory pro jet kit, factory pro ignition advancer and some headwork. The problem was it would hit a flat spot at around 10,000-rpm and then flatten out and not make anymore power.
          I took the bike to a local "professional" Dyno tuner who uses a Dyno jet dyno to tune bikes, he said it was running lean and it would need re-jetting.
No problems I thought, as he told me it was running 150 mains which is smaller than stock. When I picked the bike up he told me he had put 155 mains in it as that what the dyno and exhaust analysis said was "correct" (A/F Ratio..), I thought that was a bit strange as 155 mains are what is in a stock zx9r.
        It didn't end there, though, when I saw the dyno graph the bike was still breaking down at 10,000 rpm and then the power would
come back on at about 12,000 rpm for about 100 revs then hit the rev limiter.
        This gave a peak hp of 140 at 12,000 rpm but was obviously unusable. I was told that they could not get it to run clean to redline as the ignition advancer was causing the problem and I should go back to a stock rotor as they did nothing anyway.

        I found that hard to believe but there was no arguing with these people, I was out of pocket $300 for the experience and the bike ran no better than when I took it to them. They also burnt my titanium Akro muffler brown so I was somewhat less than
impressed with their service.

        My next time out on the track I found the bike to be so difficult to ride that I ended up putting the stock rotor back in to see if it made any difference. It did and the bike revved out a lot smoother and cleanly to redline but it lost a lot of punch, seemed lazy out of corners and wouldn't accelerate as hard. I couldn't believe that was right.

        So I contacted Marc at Factory Pro to get some info on how they tune for an ignition advancer, Marc's reply was quite simple, go up on the mains until it runs smooth. With this in mind I changed the jets to 158's and re-installed the ignition advancer, what a
difference, it ran clean to redline and pulled like a freight train. I recently had it in on another dyno to check the hp and with no other mods than the "correct jets" and Marc's advice the bike was putting out 143 djhp and ran clean to redline.

Both dyno sheet pics are attached.

        My times at Eastern Creek Raceway have dropped from a best of 1:48 with the bike as tuned by the "Dyno pro's" down to a 1:42's and suddenly I'm competitive.

          On another note, I was having a lot of problems with false neutrals so I installed a Factory Pro shift kit. At first I thought it was a bit a pricey for what it was but, wow, what a difference, I have hardly missed a shift since putting it in and the speed of gear changes is much quicker.  I'm sure that had a hand in the improved lap times.

I've also attached a pic of my bike, you can even make out the Factory Pro sticker on the fairing..:-)

Kawasaki Sportsbike Riders Club -
TrakDaze -


General Technical Support

Needle Jet Wear


Do you have a ZX9 with worn needle jets? How to check: http://www.factorypro.com/tech/needle_jet_Mikuni.html.

Are your needle jets silver, black or brass colored? Are they worn? Have you experienced increased low rpm richness over long term mileage? What is your float height?
Click here to report year, date of manufacture of the bike and mileage and what brand of jet kit that you have installed, or stock. If you have a jet kit, at what mileage was the kit installed?

That's an important question that we are working on an answer for.

We can replace the worn needle jets in the carbs,  cost $350.


Persistent missing at high rpm?  Anti-Theft Alarms?

Regardless of main jet selected? All air correction plumbing is properly connected? - the bike still misses at full throttle / high rpm.

And you have an "alarm" installed???

Disconnect the alarm and retest.

As of October 24, 2001, there have been many reports of alarms causing high rpm misfiring. Disconnect the alarm and the problem goes away.
It can be present when you install the alarm, may start after a crash or sometimes,  just "occur".

Call the alarm company to discuss that with them!

Cheers -


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
click here

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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