Cobra Fi2000 User Manual

23801 E. La Palma Ave., Yorba Linda, Ca 92887 Ph. 714.692.8180, Fax. 714.692.5016
www.fi2000r.com
09/07
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9.
Now plug the other Fi2000 connector into the oxygen sensor wire and zip tie this connection to the left frame
tube in a location that will not allow the wires to touch the exhaust pipe, Figure 4
10. Reinstall the battery, attach the black wire to the negative post of the battery, see Figure 1.
11. Before re-
installing the gas tank, seat and air cleaner assembly, verify your connections. Remove the door from
the Fi2000 box to expose the LED’s. Verify the wire connections by (1) turning the ignition on, prior to starting,
and see if all three LED’s are on steady. If you have no light, your ground connection (BLACK wire) has not
made proper contact or your front injector connection is not complete. (2) After achieving a steady light f
rom all
three LED’s, start the motorcycle, wait 15 seconds and let it idle, the green light should now be the only LED on.
If all three LED’s are still on after start up, verify you have attached the injector connectors correctly. Reattach
the door when finished. Note: Make sure the ignition is turned off before changing any connection.
12. Remove the backing from the Velcro and attach the Fi2000 as shown in Figure 1.
13. Re-install the fuel tank, seat and air cleaner assembly.
ADVANCED TUNING
Your Cobra Fi2000 fuel injection module has been tested and preset for best function and rideabilty on a
motorcycle with aftermarket air cleaner and Cobra exhaust. The Fi2000 does however, have 3 important
adjustments that allow you to tune the module for optimum p
erformance, especially if you have performed other
changes to your motorcycle. These adjustments also allow you to resolve drivability issues if our stock settings
are not exactly right for your bike. Make sure your motorcycle is up to normal operating t
emperature (15 minutes
of riding should be sufficient) before making any adjustments. Remove the door to expose the pots shown in
Figure 3.
GREEN LED POT (left pot) -
With the Closed Loop function of this module you do not need to adjust this setting,
leave it at 1.5. Without a closed loop system this adjustment would affect idle and cruise fuel. If you had
cruising issues, this is where you would try a different setting. Generally, surging and uneven running while
cruising is a lean fuel condition, so adding a small increase in fuel by turning this adjustment clockwise
with a
small flat blade screwdriver a 1/2 of a position would help. The bike would need to be Test-driven to feel an
improvement and only the setting would need to be increased until the surge went away. Also, backfiring or
popping on trailing throttle is generally a lean symptom (or an exhaust gasket leak). The same small
increases as above would be tried just until the backfiring would disappear.
YELLOW LED POT (middle pot) - this adju
stment affects acceleration and power fuel. If you have a hesitation
or bogging on acceleration, this is where you would try a different setting. Aftermarket air cleaner assemblies
generally lean out fuel mixtures, so try small clockwise increases as abo
ve until a smooth acceleration returns.
RED LED POT (right pot) - this adjustment is the top end or power fuel adjustment. Just like the main jet in a
carburetor, it starts to control fuel, as you demand maximum power from your bike and takes over completely
above 4000 R.P.M. As performance gains are added to your motorcycle, such as big bore kits, camshafts,
flowed cylinder heads, etc., each component will increase the fuel demand of the system. With the red
pot turned to its maximum (10) position, the Fi2000 will cope with nearly 100 R.W. horsepower. An all-stock
motor will only require a 2 position. You can generally, if you are using quality performance
engine upgrades, in
a sensible combination equate the numbers evenly from 2 up to 10 based on horsepower gains.
TUNING NOTES
Typically 2 into 1 on our speedster exhaust system require one additional position, on the yellow and red pots,
over slip-ons or staggered duals.
On high performance motors, slip-on mufflers do not flow well enough and create fuel setting problems and
detonation. Cobra recommends the installation of any of its complete exhaust systems.
DOCUMENT NO
. 0018
REV. A

Cobra Fi2000 Specifications

General

Brand	Cobra
Model	Fi2000
Category	Motorcycle Accessories
Language	English