Long Boy Fuel Screw Kit $89.95 pn: 3020m1
with 4 new extended screws, springs, washers and o-rings.
2.
"Long Boy" Finger and screwdriver adjustable extended Fuel Screw
Frustrated with trying to find an "almost 90 degree" screwdriver
to fine adjust your fuel screws for best idle and cruise?
Use Factory Pro's new "finger adjustable" fuel screws to adjust fuel
screws 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 screws, old o-rings, old washers and old
spring. The o-ring might be stuck in the carb, so, take a light and make
sure it's really out if it didn't come out with the screw (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".
Each screw assembly comes with:
4 Long Boy fuel screws
4 new o-rings
4 new washers
4 new springs
Item
Description
Sample pic of some fzr400 stacks from the R&D
sessions - The production stacks are all the same length
on the 400.
pn: VEL-Y01S64-1515
TENTATIVE!!
The 3EN uses the 1WG airbox, so the stack adapter rubbers
will fit the airbox, but we need the carb bellmouth OD to verify
that the rubbers will fit the carbs.
$299.95
A sample picture of
Dave Norgard's race winning 1WG fzr400 carb set with his" formally secret" Factory Pro
Superflare stacks.
Boost power and response with the improved resonant
qualities of hard aluminum stacks vs. resonance absorbing soft rubber
stock stacks.
The Factory Pro Superflares feature an improved taper inner diameter
profile for air straightening and an optimized inlet radius that
promotes enhanced pressure wave pressure wave propagation and
recovery rates.
SPECIAL NOTES for professional tuners concerning
modified engine fzr400's:
Since a high percentage of fzr400's are racebikes or trackday bikes,
with different pistons, porting and cams, the desired stack length
may be different from what the stock engined 400 wants.
For modified bikes, please send a dyno chart, preferably under full
load, and I'll try to custom fit stack lengths for you.
Also, please send the length of the stacks you are using, measured
from the inside airbox base to the top of the stacks.
And maybe a digital picture of the stock stacks, in the airbox, too.
Factory Pro's patented "quickchange" stacks are potentially
available in lengths as short as about 10mm to 80mm, in 5 and 10mm
steps
Thanks - Marc
stock part numbers:
1WG airbox and snorkel
3EN intake manifolds
3EN stock stacks and
uses
3EN emulsion tubes / needle jets
Emulsion Tubes, nickel plated, Factory Pro
Factory Pro replacement emulsion tube
/ needle jet for Yamaha
CRZ-EMU-100160k x 4 pieces $132
replaces original
Yamaha pn: 3EN-14141-90 and 3EN-14141-92
Factory Pro nickel plated emulsion tubes - longer life than
original - better fuel atomization than worn originals. Cures lowend
richness caused by needle jet wear.
This Factory Pro kit advances the timing 5
degrees. With stock engines with stock compression ratios, there is
more power everywhere. Part throttle power is better - helping corner
exit speeds. Improved in-town drivability.
Make shifting MUCH quicker and virtually eliminate
missed shifts. This is exactly the same kit that Yamaha Racing has used.
Huge shift action improvement.
Pretty much every fzr400
and 600 aficionado has one.
The kit requires the removal of a 27mm clutch nut - so,
you'll need a: Deep 27mm socket and an Air or electric impact wrench If you insist on not having an impact wrench, you'll need / appreciate.......
A friend to hold the rear brake on while you loosen the 27mm nut while
the bike is in 3rd (ish) gear.....
Every time I say - "I'm going to discontinue that kit."
You guys, start calling and buying them again! OK- OK!! One more year!
2015!!!
The only way to accurately measure
float heights. Works on nearly every carburetor.
Low Inertia EC997 Eddy Current Dyno in operation
in Switzerland at
Pichard Racing
For Factory Pro Tuning Center
locations - click
here!
Tuning Hints
Carefully inspect carbs for needle
jet wear Causes excess richness at low rpm that cannot be cured with
fuel level / float height changes. Visit
HERE
for needle jet wear information.
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
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.
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