Honda

crf250x  04-16

Keihin FCR Carb Recalibration Kits - patented Factory Pro HDJ style

 


(sample pic)

CRB-CH250x04   04-16  $99.95

inc carb kit + HDJ emulsion tube

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Factory Pro's secret

The HDJ style jetting kit

 The crf250x carb recal kit was designed with as much care and attention to detail as we give to our EC997 dynamometer and test routines, our Shift STAR shift improvement kits, our Billet Engine Covers and all of the other products that the quickest road racers in the USA and World used to collect a total of 9 WERA and F-USA national Championships - along with the Suzuki Cup World Champion, Rob Jensen.

    We've now entered the off-road arena to bring some new, exciting, well proven concepts, such as our easily tuneable "HDJ" style jet kits and several other things that we've picked up along the way.

    One of the improvements was EC997 dyne systems design and test routine design - We have been saying for years that inertia dynos were misleading and now, these new "HDJ" carb kits show how much better the EC997 load dynos are than inertia dynos when it comes to developing any performance products. Sounds a bit egotistical? Perhaps it sounds that way - but, I think that we've got quite a few local Norcal racers that we've done fine tuning work for that would agree with us.

We are just passionate about fine tuning.

   The Factory Pro HDJ kits, designed by Marc Salvisberg, will run more evenly over a wider temperature and altitude range than any other carb kit and will produce 3% to 8% better power than another carb with the "best main jet" in it, when properly tuned and tested under a real load. This does not mean an inertia dyno - though, power will be better with a dealership level dyno, also.

So - Here's the power - Buy it!

Thanks!

800 869-0497 

Factory Pro's Shift stuff!
Help prevent shifting problems, missed shifts and dog and fork damage caused by missed shifts.
 
SHFT-EVO-H45-STAR only    $159.95

crf250r  04-09

crf250x  04-16 (no 14)

(replaces 24312-KA3-741 star)
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Ok I got it installed! Let me first off say that I do not work for the people that make the shift star or anything.

Now I didn't get a full days ride in but for the 45 minutes riding around on snowy icy roads it was everything they said it would be. Usually when on the icy snow when I'm shifting from first to second and the back wheel is still spinning it usually always would go right into neutral and VROOOOMMM. Now, every time, I mean every single time, no matter what rpm or load on the engine it goes so friggin smoothly into second it's onreal lol.

Now shifting in between all the other gears is such a positive with just one click and fully in gear. Before, idk if everyone experiences this but my 07 would like double click into gear and sometimes the shift lever would only go halfway up the shift stroke and not grab the second click. It's weird I know and definitely notchy from other dirt bike and quads I've ridden. I can definitely see the stock shift star wearing out shift dogs early from binding up and shifting halfway. The arm then clicks in each groove so the shift lever returns to middle stroke and is so beefier and with roller bearing. The whole shifting on my quad greatly improved to perfection. This thing should be included with an HRC kit - it's that's great. The price kinda sucks........ but I know for sure my trans is shifting perfect unlike before. I can't believe I'm the first to install one on the forum it blows my mind cuz it's that good.

Another thing before it was next to impossible once the motor warmed up to put the trans back into neutral without revving the motor up. Now I stop, shift to to neutral so simply and shut it off. It just bothers me the stock unit isn't like this. I bet there would be a far lot less worn out transmissions. I highly highly recommend this stupid shift star. Especially if you fear splitting cases like me.

 

F-Pro EVO Shift


The Factory Pro Shift Arm and Spring will upgrade your bike to "better than new" quicker, more consistent shift action.


Proven in 15+ years of pro level use.

Virtually eliminate missed shifts.

Decreases shift process 5ms to 10ms.

Make shifting MUCH quicker and virtually eliminate missed shifts.

Helps address missed shifts caused by poor shift detent "star" profile.

Helps prevent shift fork and gear engagement dog damage caused by missed shifts.

The F-Pro Microbearing Detent Arm and F-Pro Spring  are an awesome upgrade for the notchy, imprecise  Honda shifting.  The Star makes it even more refined.

Installation: Slightly more complicated than replacing the clutch basket. It's right behind the clutch basket.

No case splitting required. Just R&R the clutch basket. Requires 1/2 impact wrench for the clutch nut.

Feedback

Shift Star kit worked awesome!  Not one missed shift all weekend.  Easier to find neutral, too - Which is good because I have to put it in neutral to start it for some reason. Doesn't like to start with the clutch in. With the close ratio tranny, I did a lot of shifting.

Leigh Thomas - Mojave area

(sample pic)


SHFT-ARM-KA3, microbearing detent arm

$79.95

crf250r  04-08
and some 09's

crf250x 04-16
 (no 14)
(replaces 24430-KA3-740 arm)
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F-Pro Comp Shift Spring
(replaces spring 24435-KZ4-690)

crf250r  04-08 and some 09
crf250x 04-16 (no 14)

(use with the arm and optional star)

z95-H45-0501
only $39.95
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F-Pro Comp Shift Spring

Slightly stronger detent arm spring for  more secure and even quicker shifts
Addresses that popping out of gear in the air issue -
It's caused by the shift mechanism only rotating the shift drum halfway - the STAR, Arm and Spring help fix that problem.

 

 

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
 info@factorypro.com

EC997 dynamometer information
info@factorypro.com

Product Support /Tech SECTION
click here

 

Mailing / Shipping address:

Factory Pro
101c Roblar Drive
Novato, CA
USA

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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LINKS
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

 800-362-0808
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!
Marc
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.