FI Controller Instruction Manual
For Ape50 (FI model)
Item No. ：０３−０５−００２０
Fits:：HONDA Ape50 (FI model)
Frame No. ：AC16-1600001〜：AC18-1000001〜
・Thank you for purchasing one of our products. Please strictly follow the instructions to install and use the products.
・Before installing the products, please be sure to check the contents of the kit. If you have any questions about the products, please kindly contact yourlocal dealer.
◎ Please note: Illustrations and photos may vary from actual hardware.

〜 Features 〜○This is a subcomputer whose wires, supplied in this kit, can be connected to those of the genuine ECU with minor modification of the ECU’s wires. Thus,
this kit is easy to use and can increase the amount of fuel injection.
○This FI Controller’s 16-bit micro computer allows the air-fuel ratio of FI vehicle equipped with our S-Stage to be optimized in real time according to theengine conditions by computing the proper ratio based on the signal of the genuine computer.
○ Fuel injection can be adjusted in 15 steps with a rotary switch so that this kit can meet the modifications in the intake and exhaust system.
○This kit makes possible the fuel injection in larger amount than the maximum amount to be injected by the genuine computer.

Please read the following instructions before installation.
◎ We do not take any responsibility for any accident or damage whatsoever arising from the use of this product not in conformity with the instructions inthis Manual.
◎ We do not have any information or service data on the combination of our products and other manufacturer’s products.
◎Please note that this product is designed for exclusive use with the above-mentioned fitting models and that it cannot be mounted on any other models.
◎When ordering repair parts, please quote above Item No. or reference Nos in the figures in this Manual. If you have any questions about the repair parts,
please contact your local TAKEGAWA dealer.
◎ This product is designed to extend the fuel injection time through the incorporation of this product to the injection power from the genuine ECU.
◎ In the case of a technical trouble like the breakdown of this product or faulty wiring, it is structurally likely that the fuel injection may stop.
◎ There is no rev limiter release function.
◎The data, described in this Manual, on the increase in the fuel injection is based upon the test on the motorcycles owned by us and equipped with ourproducts. However, when this product is installed on altered motorcycles other than those motorcycles tested by us or on motorcycles using othermanufacturers’ parts as well, you may not be able to get the optimum settings for the air-fuel ratio.
◎ However, even if your motorcycle is equipped with our products, in some cases, you cannot get the intended settings because of the individual partdifference, or such foreign elements as temperatures, height above sea level, or rider’s physical constitution.
◎ This product can make the general driving possible by increasing the amount of fuel injection or the vehicles with our S-Stage installed.
◎ Since this product is a subcomputer, we do not guarantee this kit that always produces perfect settings with engines of any specifications. Moreover,
we shall not be liable for the breakdown of the engine.
◎ Before driving, be sure to always check whether the air-fuel ratio, or the setting, meets your engine.

Precautions to use this kit◎ DO NOT USE the following parts with this FI controller.
DO NOT USE H.I.D. kits in aftermarket, because many of H.I.D. kits in aftermarket emit noise of high voltage from the ballast/inverter(a device to convert
the voltage) and adversely affect the digital circuit. It causes failure or malfunction.
DO NOT USE ignition systems in aftermarket such as ignition coil or plug wire, because many of ignition systems in aftermarket increase the radiation noisedue to increase the ignition voltage. It causes malfunction or product failure.
DO NOT USE generating systems in aftermarket, because many of them cannot charge enough electricity and battery voltage lowers. Also, they cannot
control voltage. Those cause malfunctions.
◎ This product is NOT waterproof or drip-proof.
Since this product is not waterproof or drip-proof, it may damage if this controller gets wet with rain or water, or water enters the controller body.
Be careful when washing as well. Stop using the controller immediately when the controller body gets wet.
Also, be careful if you use the transparent switch panel in the kit. When it is humid or the temperature changed suddenly, the controller body may get themoisture inside and the transparent panel fogs up.
◎ The housing of controller is made of plastic.
Cover the vehicle to avoid deterioration when parking the vehicle outside for a long time.
If the controller is left in the severe conditions such as hot climates for a long time, the plastic or rubber may deteriorate or deform.
◎NEVER disassemble the controller.
It•fs VERY DANGEROUS!! NEVER disassemble or modify this controller.
NOTE: If it is disassembled, we do not accept any maintenance or repair.
◎ DO NOT give an excessive impact.
DO NOT give an excessive impact to this product with riding on off-road or jumping.
By the impact, malfunctions may occur, including the breakage of the inner parts, unrepairable failure due to the disconnection or damage of the controller
housing.
◎ How to clean
If the dirt is stubborn, wipe the dirt with a soft cloth slightly moistened with a mild detergent solution and clean gently and carefully. To prevent adversely
affecting the plastic material or fogging up the panel, DO NOT use a rubbing compound or volatile solvents such as alcohol or paint thinner.
‑1‑Jul./20/ 10

CAUTION

The following show the envisioned possibility of injuries to human bodies or property damage as a result of disregarding thefollowing cautions.

・Please drive safely and follow the local traffic laws.
・Work only when the engine and the exhaust system are cool to avoid burns.
・Prepare appropriate tools and work properly to avoid the breakage of parts or injuries.
・Always use a torque wrench to tighten bolts and nuts securely to the specified torque to avoid these parts getting damaged or loose.
・As some products and frames have sharp edges or protruding portions, work with your hands protected to avoid injuries.
・Before riding, always check such parts as screws for loose.
If you find loose ones, screw them securely up to the specified torque to avoid parts coming off.
The following show the envisioned possibility of human death or serious injuries to human bodies as a result of disregarding theWARNING following cautions.

・When you notice something abnormal with your motorcycle, stop riding immediately and park your motorcycle in a safe place to avoid an accident.
・Before working, place the motorcycle on level ground to stabilize its position for safety to avoid the motorcycle overturning.
・Please conduct checkups and maintenance correctly referring to the instructions and methods described in the instruction or service manual.
(Improper checkups and maintenance could lead to accidents.)
・If you find damaged parts when inspecting or performing maintenance of your motorcycle, do not use these parts, and replace them with new ones.
(The continued use of these damaged parts could lead to accidents.)
・Keep plastic bags for packing the products out of children’s reach, or discard them.
(If children get them on, there will be a danger of their suffocating.)◎ Please be informed that, mainly because of improvement in performance, design changes, or cost increase, the product specifications and prices are
subject to change without prior notice.
◎ This manual should be retained for future reference.

〜 Kit includes 〜
９No.
1
23
45
678
9１、２８４

３５７

Part NameFI Controller Assembly
FI Controller panel (bored switch)
FI Controller panel (transparent switch)
Rubber cap
Sub wire harness 1 COMP.
Sub wire harness 2 COMP.
Ground wire
Velcro set
Insulation lock, 150 mmQty
11※11111
12Repair Part Item No.

In packs of00-05-0044

100-05-0045
00-05-0041
00-05-0042
00-05-0043
00-00-0150
00-00-0135

111
1110

※The FI Controller panel of Item No. 2 above with a bored switch is factory-installed onto
the FI Controller assembly of Item No.1.
Please order repair parts with the Repair Part Item No.
Without the repair part item No., we may not be able to provide the correct parts.
Some parts are only available as a set. Please order them with the set number.

６〜 Product & Parts Names 〜
FI controller

Red LEDRotary switch
Green LED

Harness for FI controller‑2‑Jul./20/ 10

〜 Installation Procedures 〜
We have prepared this Instruction Manual on the assumption that our S-Stage had already been installed.
Please install this FI Controller in reference to this Instruction Manual but only after the installation of S-Stage Kit.
●Introduction:●Connect the FI Controller

１．Make sure the motorcycle is secure on the side standon level ground for safety’s sake during installation.
２．In reference to the genuine service manual, unfasten
the seat bolt and collar, and demount the seat by

１．
Fix the ring terminal of ground wire in the kit and a band clip at the same ground pointat the right-side of the frame.

pulling it backward.

G38775 - F C1-T 00
MADE IN JAPAN0123456789ABCDEF
SW. Pos.

POWER

３．Demount the genuine ECU from the stay installed on
the upper part of the genuine air cleaner box under
the demounted seat.

STD.

.
E xt tec
I nje
T im

２．Connect FI Controller and bullet terminals. (See the following chart)
Do Not connect
Ground wireB

ADD FUEL

To the injector

To the stock wire harness

Br

P/GBr

４．Demount an inlet duct, made of rubber, on the upperside of the genuine air cleaner box.

G…Green

Wires of FI Controller
Green(Female terminal)
Green(Male terminal)
Brown(Male terminal)
Red(Female terminal)
Brown(Female terminal)
Red(Male terminal)

B / BlR

B / BlSub wire harness 1COMP.

B…BlackP/G
Sub wire harness 2COMP.

R…Red

Br…Brown

Bl…Blue

P…PinkConnect toDO NOT connect
Ground wire
Sub wire harness-1COMP. Pink/Green(Female terminal)
Sub wire harness-1COMP. Black/Blue(Male terminal)
Sub wire harness-2COMP. Pink/Green(Male terminal)
Sub wire harness-2COMP. Black/Blue(Female terminal)

３．Connect coupler of sub wire harness-1COMP. to the injector.
Connect coupler of sub wire harness-2COMP to 2P coupler of stock wire harness.

2P coupler of stock wire harness

５．Install a stock ECU back onto the stay for an air
cleaner box as it was originally installed.
６．Remove R. side cover.

Injector

Boss
４．
Tie the harnesses of the FI controller and the vehicles in a bundle with a supplied
Insulation lock, and place the FI controller in the place where rain or water does not
get into it like inside the side cover.
In installing the controller as above, please use a supplied Velcro.
５．Make sure the wires are connected correctly again.

Bolt

R. side cover

Turn on the ignition switch.
Please check that after turning on the switch, the green and red LEDs on the switch
opening light up and that the red LED goes out in about one second.
CAUTION : As we switch on all the controllers before shipment from our factory, incase the LEDs do not light up as mentioned above, the wrong wiring
can be the cause.
Immediately turn off the ignition switch, and check if there is nowrong wiring.
６．Install the seat and R. side cover in reverse order of removal.
CAUTION : Be careful NOT to pinch the wire harness of FI controller with seat orframes.
‑3‑Jul./20/ 10

７．Referring to the “List of Settings by Engine Specifications” in this page,adjust the FI controller switch at the designated setting No. which matches
your engine specifications. Then, attach the supplied rubber cap onto t
he switch panel.
CAUTION : Attach the rubber cap securely. If the rubber is wrongly fit
onto the switch, there will be a gap between the rubber cap
and the panel of the FI controller. This may cause the rubber
cap to fall off or let the dust or water get into the FI controller
through the gap, which may ultimately lead to the breakdown

２．Arrow of the switch indicates a setting shown by numbers or letters.
When it shows “0”, the amount of fuel injection is almost the same as theamount injected by the genuine ECU(NO fuel increase). The amount offuel injection increases more than the amount injected by the genuine
ECU following to the numbers and letters of the dial from “1” to “F” byturning it clockwise.
３．
The adjustment is a 16-step adjustment type starting from “0”. Be sure to
set at a figure or letter precisely until it clicks into place.(If the cllicks areincomplete, the controller does not work properly.)
４．When the green LED is on, this indicates that FI controller is powered.
When the FI controller is operating properly, the green LED lights up.
(The ignition switch must be “ON”.)
５．When the ignition switch is turned on, the self-diagnosis function starts
operating and the red LED lights up for one second.
However, if the red LED does not light up at all or, on the contrary,remains on, turn off the ignition switch. Please try to turn on the ignition
switch again ten seconds later.
６．Moreover, the red LED is designed to light up as a warning light whenof the FI controller.

over burdening on the fuel injector while the engine is running.
If you open the throttle quickly when the engine is still cool, there is apossibility that the fuel injector may keep on injecting fuel. This isbecause the FI controller works to further extend the fuel injection time.
This kind of symptom may cause the breakdown of the fuel injector.
Thus, the red LED lights up as a warning light.
Please drive your motorcycle carefully so the red LED does not light up.

●About the rubber cap and panel:・Remove the rubber cap only when you adjust the rotary switch.
CAUTION : If you drive your motorcycle without the rubber cap on, thedust or water may get into FI controller, causing it to breakdown. When riding, be sure to cover the top with the rubber
cap or the transparent panel in the kit.

● List of Settings by Engine Specifications
・ When the setting is finished, peel off the panel stuck on the switch at the ・The below settings are all for the vehicles equipped with our S-Stage Kit
and Hyper Camshaft.
time of shipment from factory, and replace the panel with the transparent
one. And this increases the dust-proof and drip-proof quality of theEngine Specifications
Setting
product, leading to the prevention of the needless troubles.
Genuine air cleaner box (w/o duct)+ stock exhaust system
8
CAUTION : When attaching the panel, please paste it right on theGenuine air cleaner box (w/o duct)+ our exhaust system8octagonal recessed surface on the FI controller.
Our high flow filter + stock exhaust system
8
If the panel is fit onto the edge, not on the recessed surface
or the groove, then the dust or water will get into thecontroller through the gap. Please place panel properly.

Our high flow filter + our exhaust system

8●How to use the FI controller and about the setting:
１．The setting of the FI controller can be adjusted by turning the yellow
rotary switch.
Please turn the switch carefully with a flat extra-fine tip screwdriver(DO NOT deform the grooves).
You can adjust the settings even when the engine is running idle.
WARNING : NEVER adjust the settings while riding. Otherwise,
this may cause the consequential accidents.

Co.,Ltd.
3-5-16 Nishikiorihigashi Tondabayashi Osaka Japan
TEL : 81-721-25-1357 FAX : 81-721-24-5059
URL : http://www.takegawa.co.jp‑4‑Jul./20/ 10