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Kawasaki EX250, GPX250r Great in-town bike and a fun entry level racebike for areas of the world that have a 250 Production race class. Little known fact - Factory Pro has built quite a few race winning EX250 racebikes. Porting, milling, boring, Full Radius Valve Jobs were available for the 250. We specialize in custom tuning the EX's - whether we built the bike or not. To extract the maximum power for the engine, it is necessary to use the Low Inertia EC997 Tuning Dynamometer with 4 Gas EGA to concurrently dial in the carbs and the cam timing. You can't really do optimum work on an inertia dyno, socalled "tuning to an af as is usually found at dealerships levels - |
EX250 during oil additive testing on EC997 Eddy Current Dynamometer by Factory Pro
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When you desire to use the stock airbox with stock or K&N air filter. $89.95 |
Standard
drop-in kit, using the stock airbox and stock, K&N or UNI stock
replacement air filter. The kit has enough jets to use with an
aftermarket "street" or "race" exhaust - and also, the stock exhaust. No slide drilling like the dj kit, is required.
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When you desire to use individual air filters and remove the airbox. $89.95 |
Use the Config
30 kit for when you desire to remove the stock airbox and use individual
filters.
It's not much more power, but it sure looks neater! The kit has enough jets to use with an aftermarket "street" or "race" exhaust - and also, the stock exhaust.
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 TL-float height gauge $49.95 USD |
The easiest way to set float height - important when
tuning for max mileage and low rpm tuning precision.
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 RTR-KAW-5-05 $64.95 |
 Ignition Advance Kit - NOT for 250!
We do NOT NOT NOT NOT (not!) make an ignition
advance kit for the ex250! BUT!!!! If you buy the
RTR-KAW-5-05 kit, you can use the supplied woodruff key and the installation
instructions for the ex500...... and you'll have a nice ex500 flywheel
puller tool, too! |
- Installing
a Jet Kit
(Sport Rider, 97)
Installing a Carb Recal Kit on Kent Kunitsugo's CBR900rr
- Ram
Air Part 2
Sport Rider's article on Ram Air Systems - Do they really work?
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Installing
a Jet Kit on an ex250 and 500
By Rocky Cherry on his EX500
FEEDBACK
creighton smith wrote:
Marc,I really enjoyed swapping flying tales last week but what I really enjoyed was taking my bike for a ride on Saturday after installing your jet kit.I started off with some trepidation since the 250 Ninja board is chock full of horrifying stories of repeated rejettings, needle raisings and lowerings and all manner of, after all that, very partial successes. None of these concerns Factory Pro kits, however, and for good reason as I discovered.I installed everything per the instructions: 3rd groove, install jets, 2 turns out (went out another half turn), and the bike ran well from the get-go. I now have a midrange, thank you, and find myself cruising around at 7k (even as low as 4-5k if I'm trying to be really quiet) which is something the stock setup would not allow-at any rate it would not pull smoothly below 8k previously. Full power is as good or better (My ass dyno is out of calibration, due to a boating accident I missed last year completely.)I am delighted. My brother in law is also convinced and may have ordered a kit already. I'll post a recommendation on the Ninja site, but they're such bucks-down squids they'd rather waste the whole riding season than spend the bucks and the hour to get a fine running bike.Thanks again.Creighton Smith
LINKS
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EFI and Carb Tuning - Most all FI and carb tuning by Wheelsmith Racing |
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The Harringtons
own
American
Flyers,
one of the most established flight training facilities in the USA. 8 locations 800-362-0808 |
 Flight Training - train with AMA race winner Todd Harrington. |
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Insurance ONLINE
QUOTE Clearinghouse Get ONLINE realtime quotes from multiple companies - One Stop MC, auto, home and more from insurance companies you know and trust. |
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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! |
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Make your next tour Unforgettable, Affordable and Exotic. Superbike Tours Thailand - See you there. Geoff@superbiketoursthailand.com |
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Factory Pro Fall Flying 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! 707 938 2444 |
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Artisan Crafted Fine Cheeses
– Since 1865
Specializing in Handmade Brie & Camembert |
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| 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. |
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Maybe in next rewrite, he'll fix the ignition timing and dyno chapters... Otherwise great book with great starting ideas. |
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My bible |
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The little blue bible for quick references and little known facts. |