Road Star 1600

Factory Pro Series "Y16"

Factory Pro's attention to detail, once again, provides the rider / tuner with the proper parts to dial in their favorite mount's carburetion -
We don't promise perfect running with "one jet and needle spec fits all" malarkey - We don't file off the numbers on main jets to keep a secret - We are here to provide Technical Support and tuning components so that you can enjoy every mile that passes below you.......... 


Item Description

CRB-Y16-1.0    $79.95
(use with the stock airbox)

1. Choose your shipping method
Tired of bad mileage from poorly tuned jet kits?

Adds more low-end / midrange, if the proper main jet is selected, more topend power. Easy to install and tune - no slide drilling!
This is the preferred style kit - no carb slide drilling - Maintains excellent throttle linearity, unlike carbs with drilled slides -
This is the generally preferred kit as recommended by tuners with wide experience levels -

CRB-Y16-1.1-TI  $99.95
(use with  the stock airbox)

1. Choose your shipping method

Titanium needles and Stainless steel allen screws for the float bowls. Adds more low-end / midrange, if the proper main jet is selected, more top-end power. Easy to install and tune - no slide drilling!

CRB-Y16-3.0   $79.95

(use with an aftermarket airbox)

1. Choose your shipping method
Specifically designed carb jetting by Factory Pro to work with Big Air, Max Air, Hypercharger and the rest of the "open" intake systems.

If you tried the "special" "Cobra" jet kits and can't quite get the tuning perfect (every bike IS different!) and are ready to actually ride and tune your bike or have your bike tuned by a tuner with a High Speed  4 Gas EGA EC997  - this is the kit to start with -
From sea level to Denver - this kit should have everything you need to make your stock engined bike run best.

TL-float height gauge

1. Choose your shipping method

The only way to accurately measure float heights.

Works on nearly every carburetor.

True Rear Wheel Horsepower® Factory EC997a® Eddy Current Dynamometer


Suggest one! Email us and we will post it here.




Just In!!
(shipping Oct 20, 2008)

New and improved 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 - 6pm, Pacific time, -7 or -8 GMT

800 869-0497
 USA and Canada

415 883-5620

fax 415 492-8803

parts information

EC997 dynamometer information

Product Support /Tech SECTION
click here


Mailing / Shipping address:
Factory Pro
179 Paul Drive
San Rafael, CA 94903

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


This Tuning Site has been visited by
people. - the oldest counting service on the web





People ask me how I select the below links - as they aren't all mc related.
The below links are people and companies that are consistently impressive with their continual uniqueness and dedication to providing traditionally valued, quality products and services.
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!

Factory Pro Fall Special!

Book a sightseeing flight over the Wine Country or a Kamikaze aerobatic flight or a biplane flight over Infineon 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!)

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Just say that you saw this on the Factory Pro website!

Northern California's most unforgettable flying experience.  No experience required.  Open weekends!

Artisan Crafted Fine Cheeses – Since 1865       

Specializing in Handmade Brie & Camembert

Marin French Cheese Co., also known as The Cheese Factory and Rouge et Noir is not just the oldest cheese manufacturer in the country, but a vacationers and day trippers destination as well as a unique part of American History. Located north of San Francisco, east of Napa County, west of Pt. Reyes and Olema and south of Sonoma County, Marin French has produced hand crafted Artisan soft ripened cheese since 1865. Rouge et Noir cheeses are similar to French and European varieties but reflect the characteristics of Northern California, producing it's own regional style.


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.

Maybe in next rewrite, he'll fix the ignition timing and dyno chapters...
Otherwise great book with great starting ideas.

My bible

The little blue bible for quick references and little known facts.