- GIVES PURE PERFORMANCE
SFi 1032 / R259
All BMW models 2002 onward with
R1100 / R1150 / R1200 models
# 1 General Instructions
Installation of Sfi Performance Group/Battley Cycles R259 Fuel Controller
may affect your BMW limited vehicle warranty. See your dealer for
- Caution: BMW motorcycles
modified with the Sfi Performance Group/Battery Cycles R259 Fuel Injection
Control are not certified US EPA legal and must not be used on public roads
and in some cases may be restricted to closed-course competition.
Alterations of emissions related components constitutes tampering under
the US EPA guidelines and can lead to substantial fines and penalties.
- The R259 fuel injection module
has been designed to work on all fuel injected BMW Boxers that utilize
an oxygen sensor, regardless of model. The advantages of this design
include a much lower cost to you, as well as ease of dealer stocking and
supplying a product that can deal with any exhaust and air intake system
you may choose. The R259 is designed as a stand alone fuel injection
controller. It should not be used in conjunction with any other fuel
control device. You must have to OEM
“Cat Code Plug” installed, and the Throttle Position Sensor must be set
up to BMW specification for this device to function properly.
- - In the open loop mode the
R259 looks at the fuel injection map and adds fuel to that map at the injector.
In closed loop operation the product redefines the oxygen sensor input
to the ECU, resulting in better fueling at cruise, and negates most of
the surging problems associated with these bikes.
- Before installing this product
be sure you have a basic understanding of certain components and features
of your motorcycle. If you are not aware of where the oxygen sensor
or the fuel injection connecters are located, we seriously recommend that
you have your dealership install this product. We have designed this
product to be very consumer friendly, with easy connection and adjustment,
but you are still working on very sophisticated equipment that requires
at least basic mechanical knowledge. Instructions with photos are
available, in PDF format, from the Dobec website
- - The R259 wiring interrupts
the oxygen sensor and fuel injection wiring using OEM connectors.
You will disconnect these components, and install the R259 wiring harness
in-between the stock wiring harness and these components. Take your
time and ensure that you have made good, solid connections. Do not
pull on any connecters by the wiring. The injecting connectors have
a locking wire bail that must be depressed before the connector will release.
Early oxygen sensor connectors have a rotating lock that must be turned
to release and secure. Late oxygen sensor connectors have two locking
ears that may need to be gently spread to release
- The accompanying set up specifications
apply to all models, but are designed to be only a GUIDELINE for ease of
installation. The typical pot settings have been tested and approved
by our technicians. REMEMBER, those are typical settings and may
not be optimum for your bike. The wide range of aftermarket exhaust
and air intake systems will affect your settings. If you are not
happy with our typical settings, then follow our #4 Adjustment and Fine
Tuning section. Because the R259 only adds fuel, we have incorporated
a simple shutdown feature for diagnosis. Turning
the cruise pot clockwise past the 9:00 position will disable the R259,
turning off all LEDs and returning the motorcycle to stock fuel.
(If you need to use this function, mark the current position of the cruise
pot with a felt tip pen). With the R259 disabled, your bike should
run exactly the same without the product installed. If this is not
the case, STOP, verify that you are connected properly, and that your ground
connection is good. When we discuss pot settings, the position of
the arrow as it relates to the face of a clock determines its location.
any numbers actually on the face of the pot). 1:00 is the minimum
setting, 11:00 is the maximum setting, 3:00 is the position shown.
Installation R1200 C
- Remove the chrome
right air filter cover. Release the brake fluid reservoir from its
mount. Follow the oxygen sensor lead from the exhaust to the connector.
It is mounted to the back of the brake fluid reservoir mounting bracket
with cable ties. Cut the cable ties to release the connector from
the bracket. Gently pull the connector apart. Insert the male
O2 connector from the R259 into the oxygen sensor lead. Connect the
female side of the R259s O2 connector to the bike’s wiring harness side.
Make sure both sets of connectors are fully seated. Cable tie the
sensor lead connector back to the bracket and tuck the other O2 connector
under the front of the airhorn.
- Depress the retaining bail
on the right fuel injector connector and gently pull off the connector.
Install this connector on the male R259 injector lead. Install the
remaining R259 connector on the right injector.
- Connect the ground lead by
removing the Allen screw (5mm hex) that secures the airbox to the frame.
Place the screw through the lug on the ground lead and reinstall and tighten
the screw. Go to section 3 and verify power-up. Tuck the wiring
below and behind the airhorn and cable tie if necessary. Using the
supplied Velcro, attach the controller box to the top of the airhorn.
Reinstall the brake the brake fluid reservoir in its mount and reinstall
the side-cover. See the dobec
website for more detail.
Installation R850, R1100, R1150,
- - Refer the appropriate
BMW service guides and remove the fuel tank. On some models it may
be possible to have an assistant lift the tank up and to the left expose
the oxygen sensor connection, without fully disconnecting the tank.
Locate the oxygen sensor connector by following the lead from the exhaust
system. It will be cable tied to the right frame backbone.
Cut the retaining cable ties and pull the connector away from the frame.
Open the connector and insert the male R259 O2 connector into the oxygen
sensor lead, and the female to the bike’s wiring harness. Cable tie
these back to the right frame backbone.
#3 – Verify Base Settings and Power-up
- Route the R259 wiring harness
down the right frame, in-between the battery tray and the rear fuel tank
mount. Using the supplied Velcro attach the R259 to the airbox lid.
Locate the lead on the right fuel injector, and while depressing the locking
bail on the connector, gently pull the lead off. Install this lead
on the R259 male injector connector; install the remaining on R259 harness
to the right injector. Make sure all of the connectors are fully
seated. Cable tie any excess wiring away from the fuel lines and
- Connect the ground lead to
the battery negative terminal or an alternate good ground.
- Re-install the fuel tank.
Make sure the fuel lines are connected and their routing is correct.
Insure that both throttle cables are correctly seated in their adjusters
on the throttle bodies, and that nothing interferes with the throttle mechanisms
on either throttle body. Turn the key on and allow the fuel system
to pressurize. CHECK FOR ANY FUEL LEAKS and repair as necessary.
Go to section 3 to verify power-up. Re-install any other bodywork
removed. See the dobec website for more details.
- Remove the two Phillips head
screws and remove the cover from the R259. With
the run-stop switch in the run position turn the key on. The fuel
pump should cycle. If the fuel pump does not cycle, check that the
fuel tank connector is plugged in, the bike is neutral and the sidestand
is up (if necessary). Once power-up is verified, check again for
any fuel leaks and repair as necessary. Start the bike, the green
fuel LED should now be lit with the engine running normally. At this
point we recommend adjustment of the base settings with a voltmeter.
(See Optional Voltmeter Setup). Refer to page 3 and adjust the pots
to the specified voltages. Turn the
key off and replace the 259s cover and pick up where you left off in section
SFi Staintune Fuel Injection
|The BASE SETTINGS are shown in the drawing and printed
The 9:30 thru 11:00 setting on the CRUISE pot will
turn the R259 OFF, (see #1 General Instructions) and should be used
any time the engine needs to be held at an R.P.M. above 1500 for extended
periods i.e. synchronizing throttle bodies etc. MoDiTec diagnostics
of the lambda system may be misleading if the R259 is left on during testing.
The coldstart high idle should be set at, or slightly
below 1500 R.P.M.
||1.3 – 1.7v
||1.0 – 1.7v
#4 – Adjustment and Fine Tuning
GREEN FUEL POT – Adjusts open loop cruise and the transition
between closed and open loop. This pot should need little if any
deviation from the base setting. This pot can be used to control
decal backfire. This backfire can be caused by either a rich or lean
condition. First, try adding fuel in small increments (.1v).
If there is no improvement, turn the pot down in small increments until
backfiring is minimized.
YELLOW FUEL POT – (Accelerator
pump feature) Adds fuel on top of the green fuel pot setting whenever
the throttle is opened rapidly. This setting requires road test comparisons
to optimize your acceleration. Tests ride your bike in 2nd or 3rd
gear, rolling on the throttle briskly to 4500 R.P.M. noticing the rate
of acceleration. Increase the yellow pot one clock position and repeat
the roll-on test using the same gear and starting speed. If you notice
an improvement, increase the pot setting again and retry the test again.
Stop as soon as you feel no improvement in performance and return to the
last setting where you noticed an improvement.
RED FUEL POT – Adjusts end top fuel to maximize performance.
This setting is the hardest to achieve by road testing. You can increase
the setting one clock position and run the bike up to redline in 2nd or
3rd gear starting from an R.P.M. higher than 4500. If there is a
noticeable improvement in power try an additional clock position and re-try
your road test. Stop as soon as you feel no difference and return
to the last setting where you noticed an improvement.
CRUISE FUEL POT – Adjusts fuel at cruise and light
acceleration in closed loop mode. This pot should be set at 9:00
(4v) to start tuning. The green fuel LED should be lit, if not then
turn the cruise pot down (ccw) just enough to turn on the green fuel LED.
There should be little or no surging below 55 kph at this setting.
Decrease the pot setting in one clock position increments until you notice
a deterioration in cruise performance. Increase the pot setting in
very small increments (.1v) until the cruise performance is just restored.
This setting will yield the best gas mileage.
Optional Voltmeter Setup
The R259 PC board has a small solder pad adjoining
each pot. These are shown in the drawing as a small square with an
X inside. The voltage of each pot may be read with a DC voltmeter.
We prefer to use a digital multimeter, set on a
0-5v scale, but any DC voltmeter with .1v resolution
will work fine. The meter should be properly configured to measure
DC volts in a 0-5 volt range. Connect the meter negative lead to
the same grounding point that you used for the R259 controller and with
the engine running, probe the solder pad with the positive lead.
the pot until the specified voltage is attained. Be very careful
not to touch any other board components while probing the other solar pads,
as you may damage the device. This method allows very precise adjustments
of the fuel pots, and can be beneficial to custom tuning applications.
This information available in MS Word format:
General SFI Fitting Instructions
Prices and Applications