ZR550 'Zephyr'
(90-93)

The ZR550 is the offspring of the venerable GPz550, combined with the
good looks of the original KZ1000 race bike.

Now you can make your Zephyr really wake up!

This Zephyr is owned one of our former employees and noted technical author, Adam Wade, and the engine has been built to the nines!


 

Factory Pro's own
Supersport Carb Recalibration Kits
carb jetting kits
Tuning Tools


 

Finger and screwdriver adjustable fuel mixture screw kit

Long Boy Extended Fuel Screw
$89.95
pn: CRZ-SCR-3518k2
 with  new extended screws, springs, washers and o-rings

1. Choose your shipping method
2.

"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.

Installation:
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

Carb Recalibration kits / jet / jetting kits


CRB-K55-1.0
$129.95

1. Choose your shipping method

2.

 

Factory Pro's mastery of professional level road-race carburetor technology makes them your logical choice to supply kits to beef up your ZR550! 
Kits are attractively packaged with short simple instructions for installation and for tuning. If you can clean a set of carbs - you can install this kit. Given a couple of hours, with Factory Pro's attention to design detail, will allow you to dial in your carbs for your stock or aftermarket exhaust system!


CRB-K55-3.0
$129.95

1. Choose your shipping method

2.

Config 30 carb kit


For use with aftermarket individual "pod" air filters replacing the stock airbox.
The only kit for this bike that allows full throttle / low RPM operation.  Use with K&N RC-1824 individual air filters.

Carb Tools



TL-float height gauge $59.95

1. Choose your shipping method

2.

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.


True Rear Wheel Horsepower tm   Factory EC997a Eddy Current Dynamometer

            The Zephyr Zone  Everything you ever wanted to know about Zephyrs, and more!

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

415 491-5920

fax 415 492-8803

Factory Pro
179 Paul Drive
San Rafael, CA 94903
USA

If it's
4pm at Factory Pro it's 9am in eastern Australia.

parts information
 info@factorypro.com

EC997 dynamometer information
info@factorypro.com

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

 

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

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.
Marc
 


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


Train to Win
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 and P-51 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! Call ahead in the winter.

Make your next tour Unforgettable,  Affordable and Exotic.
Superbike Tours Thailand - See you there.

Geoff@superbiketoursthailand.com
Supwebike Tours Thailand
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.
 

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.