Kawasaki ZRX1200, 01-05
"K92 Series"

 

True Rear Wheel HP Scale   measured on the Low Inertia EC997 Eddy Current Dyno.



 

Carburetor Air Induction and Tuning Kits


 CRB-K92-2.5-APK
(1 large K&N/BMC
and adapter ring)

THE KIT
$239.95
includes air filter, adapter ring and matching carb kit

1. Choose your shipping method

2.

The Original Special "2.5" kit for those who want close to the power of the Config 30 kit, but want to retain the stock side panels and bodywork.
This kit removes the rear airbox and installs a single large BMC or K&N filter - adding MUCH more airflow and improving power - almost to the level of the Config 30 kit.
Includes Factory Pro design Carb Recal Kit, adapter ring and filter.
User must devise battery hold-down method. Zip-ties and straps are commonly used.
The kit includes Celmat 30 needles, several sets of main jets, alloy steel allen float bowl screws and more.
This is a drop-in kit and requires No slide drilling.

K92_overview.jpg (209413 bytes)   K92_battery_tray.jpg (18734 bytes)   K92_detail.jpg (116192 bytes)   K92_closeup_wire_ties.jpg (94429 bytes)
^ click on the pics for full size ones ^

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Feedback

Marc,

You guys rock!

You've done it again!!! I installed my FP 2.5 and my bike fired right up and just RRRRRIIIPPPPS!!! No adjustments necessary! I don't know how much more perfect your jetting could be. I'm just amazed!

I'm recommending you to all my friends (ZRX and otherwise!) Thanks for your great products and great service!

All the best!

Mike Trus


CRB-K92-1.1-TI
(stock/K&N and snorkel)
$159.95

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2.

Ti ProKit

The same needle profile as the above #1.0 kit, but with Titanium needles and stainless steel allen screws, a drop-in kit, also. Titanium is the best material choice for nickel plated brass needle jets, as in Keihin ZRX and ZX "R" carbs.

Feedback

Feb 2010

2001 ZRX1200R, Yoshimura RS3 slip-on, K&N w/ OEM air box, Shortened snorkel 1 ½”

 I have worked on carbureted engines for years but this is the most comprehensive kit I have ever used. Really helps you see the potential of the CVK carburetor. After reading the Feedback on your site I was able to select the correct main jets easily.
Bike runs better than ever!  Torque in the low range is killer, Midrange power is fast and smooth, top end feels endless. Pulled a second gear power wheelie for the first time!

Next is the advance plate from Factory Pro!

 Plugs: ND iridium
Floats: 19mm
Pipe: OEM
Muffler: Yoshimura RS3, shortened flow restrictor 2”
Filters: K&N OEM Repl.
Advancer: stock

Pilot jet: #38
Fuel Screws: 2.5 turns out,
Needle: in 3 with 2 washers above
Mains: 100/102

Humidity: 75%
Elevation: sea level
Location: Mobile AL

Owner/installer: Jay Rad

 
CRB-K92-1.0
(stock/K&N and snorkel)
$139.95

1. Choose your shipping method

2.

STD drop-in carb recal kit
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.
Notes:
Fuel delivery below 4k is controlled by the fuel level (aka "float height"). To properly dial-in the full throttle/low rpm power, fine adjustment is always beneficial.  If the bike responds to full throttle at 3000 rpm OK when cooler, but not quite as well when fully warmed up, the fuel level is too rich - and you need to lean it out -


 
CRB-K92-3.0-AFK
(includes carb kit and individual air filters)

$299.95 inc. filters

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2.



CRB-K92-3.0
carb kit minus filters

$139.95 w/o filters

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2.
carb kit without filters

For maximum power, remove the stock airbox and run individual air filters!
Improves power on top / high rpm. Suggested for all bikes, especially ones with ZX11 cams.

Ignition Advance Rotors


RTR-KAW-93-04

$89.95

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2.

Ignition Advance Rotor

Adds significant power at ALL part throttle positions. That equates to more "snap" in throttle response for you! Bolts on easily with hand tools. No adjustments necessary.
FYI - The RTR-KAW-93-04 is the same advancer as the ZRX1100 and, also, the venerable GPZ1100,95-96!

 

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Feedback -  for the Ignition Advance

Alright!

 
So the bike is running the nuts now. Oh yeah!
 
Took it to the ZRX rally (KOTF) in NY. I put on my ignition advancer and turned the mixture screws in 1/4 turn and it's pulling 3rd gear power wheelies over rises now. Can't ask for more than that out of a 500lb bike. I'm still going to put a carb sync set up to get a little better low end response but all and all I'm very happy.
 
Thanks for all your help Marc.
 
Derek Conant...

 

Air Filters

BMC Air Filter
FI-BMC-TBA
(stock replacement)
Factory Pro and BMC  have produced the finest cleanable air filters available. Manufactured in to European craftsmen's standards, if any filter would last 1,000,000 miles - these would! This filter is different from the ZX-11 and gpz1100.
Best estimate is sometime in late November, early Jan. for delivery date.

Transmission Shift Improvement


SHFT-PRO-KAW-11
$89.95

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2.

Pro Shift Kit

Need snappier shifting with fewer missed shifts?
Our Pro Transmission Detent Arm Kit includes Factory Pro Microbearing Detent Arm, firmer duty detent spring and gasket. Makes shifting more positive at the expense of slightly stiffer shift lever action. The stronger detent spring rotates the shift drum quicker, so the gears are more likely to engage under quick shift conditions. The Microbearing removes friction for the quickest shifting.
Does not require splitting of engine cases and there are no external parts -

Yes - this bike

DOES REQUIRE

ENGINE REMOVAL TO REMOVE THE SHIFT COVER!

Tools : diagnostic and setting


TL-float height gauge
$59.95

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2.

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


Click here for float height adjustment procedures. 

 


General Technical Support


Links


Feedback

R. Holmes wrote:

May 24, 2006

Hi Marc

I've fitted the kit with the recommended basic settings which seem to work well (although i've only tested the bike for an hour so it may be early days).
It accepts full throttle from 1000 RPM in top gear!!!! something it never did before. There is no power band now, the bike just pulls at the same rate (arm wrenching) from idle to redline.
I'm too scared to carry out the procedure for determining correct main jet size on Britain's roads, but the bike did reach an indicated 150MPH and climbing when i lost my nerve due to very light front end, and drizzly rain starting to fall.
The bike pulls so cleanly and evenly, it feels totally tame. although it's faster than it was before.
God knows how you design these kits, but they sure do work, almost too well!
I can't believe the linear power, it's so even. Thought i was in fourth gear a couple of times, when in fact i was in fifth!
If the fuelling is this accurate, i expect there'll be an improvement in gas miles if i slow things down a bit.
After the Dynojet kit fiasco, the results with yours are truly amazing and much appreciated
Thanks
Bob
PS I haven't fitted the advancer yet, hope this won't mess with the settings.

ANSWER: Probably not. Maybe just a 1/4 turn more on the fuel screws. Unless the bike is too lean at some place, the advancer won't make it run poorly.  marc
 

Feedback

Reply Re: Hey Marc
Louis J9 Registered User (10/28/00 10:21:21 pm)

Just wanted to thank you for the quality of your work. I have the Factory Pro Jet kit, K&N stock replacement air filter, and Yoshimura slip-on. Your recommendations were right on. Bike has perfect throttle response. Thanks again.


Feedback

Reply: Carb tuning
Bikefreak Registered User (10/27/00 9:06:32 am)

99 ZRX, Kerker slip-on, K&N filter, snorkel foam removed, side cover trimmed back(1.5 inches by 3.5 inches),
Factory ti kit with 100 mains, e-clip on 3rd slot, mixture screws at 2.5 turns out. Runs absolutely perfectly.


Feedback


Reply: Carb tuning
MikeDee1428 Registered User (10/27/00 6:42:30 pm)

00'Green.
D&D full exhaust, with alum. canister.
Factory Pro Config 10,100 mains, needles in third notch with one washer under clip .
Mixture screws out 2 2/3 turns. (yeah, yeah. I know, but that's where they ended up when right.)
K&N replacement filter.
Gutted Snorkel and trimmed back 1/2".
Smooth, seamless power delivery from idle to past redline and much "stouter" than stock.
 


 

Feedback

Subject:  Jet kits results
Date: Fri, 27 Oct 2000 09:26:09 -0500 (CDT)
From: bike-freak@webtv.net
To: info@factorypro.com

Just a quick note to tell you what a fine job you do on R&D. I just installed a ti kit in my 99 ZRX (Kerker slip-on, K&N filter, foam removed from snorkel throat, and trimmed side cover). 100 mains, e-clip on 3rd slot, and 2.5 turns on mixture screws. Pulls great from idle to redline using your recommended base settings. By the way my other 3 bikes (98 VTR,97 Bandit 1200s, and 94 CB1000)have had the same results with your kits. I never even consider purchasing kits from you know who.

Thanks again for well researched products.

John


Feedback

Subject: ZRX Jetting
Date: Fri, 27 Oct 2000 22:38:20 EDT
From: WKU88@aol.com
To: info@factorypro.com

Marc,
I got the 1.0 kit, and I have nothing but good things to say about it.
The directions could not have been easier, and the initial recommendations proved to be so good, I don't think I will mess with it. I have yet to dyno the bike, but it pulls real good, much better than stock.

I also have:
Muzzy megaphone
K&N replacement filter
I have not trimmed the side cover, but I did remove the cage and foam from the snorkel.
If I go with Ted's advancer, will I need to go up to the 102's? ( to help prevent detonation)
Thanks for such a great product.

Todd Gipson
ZRXOA #55
'99 ZRX1100


Feedback

Louis J9 Registered User (10/28/00 10:21:21 pm)
Question:
A number of ZRX owners (with stock cams and a variety of pipes - not Yosh) have posted dyno results with a pronounced torque dip at about 5000 RPM.
Can you tell us why that happens?

Just wanted to thank you for the quality of your work. I have the Factory Jet kit, K & N stock replacement air
filter, and Yoshimura slip-on. Your recommendations were right on. Bike has perfect throttle response. Thanks
again.

Answer:
If we check out a bike and change a couple things, perhaps I can shed some light on the subject.

If the torque drops at an rpm during a steady state test (not a sweep test), and the 4 Gas readings indicate a
mixture problem, perhaps, by addressing that fuel problem, we could "fix" the torque problem, though, there's
not much in a carb that affects only 5k.

It's possible that it is the pipe, possibly aggravated by intake tract length - possibly a few more issues, too.

What is common to all the bikes with torque drop-off problem?
Pipe brand?
jet kit brand?
Stock airbox?
Individual air filters?



Response:
jimgofast Registered User (10/31/00 10:36:57 pm)
Reply

Re: Stock Air Box Mod?

i have the factory needles in mine although i have to change them now again, but i have full muzzy k&n
replacement and slight airbox mod (removal of liner) look at my dyno sheets there is no stumble at 5 grand i am
using factory 102's bike ran great 112.5 hp. going to pods now hey mark help me out i'm in Chicago area what do
i need to use will have cams too!

 

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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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