Honda CBR250RR  - Australia

Japanese domestic CBR250RR?  - click here

The Australian CBR250RR is a great bike to learn on. Affordable and at home in town and on tight mountain roads -

Better yet - do both!

We can help out in making the CBR250 a bit more "sporty" - add snap to throttle response and increase top-end power when properly tuned on an EC997 Low Inertia Eddy Current Dynamometer!

Available at:
 Mick Hone's Melbourne, Australia

Carburetor Tuning Kits

CRB-H66-1.0       $139.95

1. Choose your shipping method


Adds a bit more low-end / midrange, if the proper main jet is selected, more top-end power. Celmat30 needle material.  Easy to install and tune - no slide drilling.

CRB-H66-1.1-ti       $159.95

1. Choose your shipping method


Titanium needles for lifetime use. Adds more low-end / midrange, if the proper main jet is selected, more top-end power. Easy to install and tune - no slide drilling.

Pro Shift Kit microbearing detent arm rebuild - Transmission Shift Improvement

oem gear detent arm:
(orphan original detent arm)
cbr250rr,m22  24430-KT7-000

oem detent arm spring:
(orphan original spring)
cbr250rr,m22 24435-KY1-013

oem shift cover gasket:
(orphan gasket)
11632-KBH-900 (new number)
11632-KT7-000 (old number)

Custom rebuild parts and labor
(does not include gasket or spring)

Send detent arm + your contact information to:

Factory Pro
Detent Arm Upgrade
179 Paul Drive
San Rafael, CA

415 491 5920

We will contact you when we receive your arm.

We can specially rebuild a worn, high friction stock detent arm and upgrade to a new, low friction, microbearing detent arm for the model listed to the left.

For this application, you must supply an original arm (new or used) to use as a core.

1-2 hours to install - it's near the engine sprocket, requires removal of chain, countershaft sprocket and water pump.

sample pic only


TL-float height
gauge $59.95

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

General Technical Support


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...
restart at HOME page


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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.