Installation tuning chip for Yamaha eBike engines
Yamaha PW-SE, PW-ST, PW-X, PW-X2 oder PW-TE engines:
Remove the battery before working on the bike!
1. Remove the lower stone chip protection cover. This is held in place by 4 size 4 Allen screws.
2. On the chainring side, loosen and remove the mounting bolt shown using a 5mm Allen key. There is a recess in the chain ring that allows the screw to be reached at an angle with a ball head Allen key. Only loosen the screw slightly, it serves as a hinge!
3. Use an Allen key to loosen the screw shown
4. Loosen and remove screw 1 with a size 6 Allen key. Then loosen screw 2 slightly. This also serves as a hinge to fold down the engine.
5. Fold down the engine. Do this with care. It may be that he's tilting something. Please pay attention: Be careful not to tear or crush any cables.
6. Disconnect the 5-pin connector (1). This is stowed upwards in the frame tube. The white latch can be opened with a fingernail or a small flathead screwdriver. This then remains in the open position (see next picture).
7. The open latch. In this position, the plugs can be easily separated.
8. Disconnect the 3-pin connector (2). This is stowed upwards in the frame tube. The lock ca also be loosened with your fingernail or a small slotted screwdriver.
9. Connect the 4 connectors on the module to the connectors you just disconnected on the wheel. Make sure that all connectors snap into place properly.
10. Stow the tuning and all connectors and cables in the frame tube.
11. Carefully fold the motor back up into position. Be careful not to pinch any cables . The motor can then be held in place with the screw removed earlier. Re-tighten the motor in reverse order. When tightening the motor screws, pay attention to the torque specified by the manufacturer.
Activation of tuning:
To switch the support on or off above 25km/h, please change the support level down one level, up, down and up again.
An example, starting at the Std level:
Button down (new level: Eco)
Button up (new level: Std)
Button down (new level: Eco)
Button up (new level: Std)
An animation of the battery capacity indicator on the display shows whether the tuning is activated or deactivated. If the capacity runs from empty to full, your pedelec also supports you with motor power when you drive faster than 25 km/h. If the display runs from full to empty, the motor support ends at 25 km/h.
Yamaha Syncdrive engines (from 2017 up to now):
1. Remove the battery by turning the key and flipping the battery out
2. Loosen the 4 screws of the battery holder with an Allen key.
3. To loosen or remove the side panel parts, you must first carefully lift the battery holder. The two tabs must be pushed up and out of the side paneling parts. Be careful not to tear off any cables!
4. Using a suitable Allen key, loosen and remove the 3 screws shown holding the right engine cover and skid plate.
5. Using a suitable Allen key, loosen and remove the 3 screws holding the left engine cover. Then remove the cover. The cover can be slipped over the crank.
6. Loosen and remove the two front motor screws (1+2) with a suitable Allen key. Attention: The screws can be of different lengths! Keep this in mind when assembling! Then loosen the third screw (3) and later use this as a hinge to fold down the motor.
7. Loosen and remove the two front motor screws (1 + 2) with a suitable Allen key. Attention: the screws have different lengths! Keep this in mind when assembling!
First hold the motor in position and note the next step!
8. Gently bend the right hand side panel slightly away from the frame. The motor can then be tilted down.
9. Disconnect the white 8-pin and white 3-pin connector on the motor. If you cannot find the connectors directly, please follow the cables in the frame. The connector ties are secured with a latch. Press this carefully. (e.g. with a narrow slotted screwdriver, see red arrows)
10. Connect the 4 plug connectors of the module to the corresponding counterparts of the connections just released.
Please only use the white connectors! If you cannot find the 3-pin white connector, follow the wire from the rear wheel speed sensor.
11. Stow the module, connectors and cables in the frame tube.
12. Fold the motor up again and make sure that no cables are crushed. Reattach the motor with the screws you loosened earlier.
13. Reassemble the motor, the covers, the chain ring, the cranks and the battery holder in reverse order.
Please pay attention to the torque specified by the manufacturer for the engine screws (usually 20Nm; information without guarantee). Please pay attention to the torque specified by the manufacturer for the chainring nut (usually 40Nm; information without guarantee)
Common cause of error
Symptom: There is no motor support or only for a short time and no speed is displayed.
Solution: Please check the 3-pin connectors from the module to the motor and to the speed sensor. This must be connected to the white counterparts, not the red ones!
Activation of the tuning
To switch the support on or off above 25km/h, please change the support level down one level, up, down and up again. If successful, you will see the animation of the trip time display as when you switch on your pedelec, which provides information about the current status.
An example, starting at the Normal level:
Key down (new level: Eco)
Key up (new level: Normal)
Key Down (new level: Eco)
Key up (new level: Normal)
With the trip time animation, the number 1 is shown on the display within approx. 3 seconds. If the display runs from 00:00 to 11:11, your Pedelec will also support you with motor power if you are driving faster than 25 km/h. If the display runs the other way round, the motor support ends at 25 km/h.
If the animation on the speedometer display shows the speed increasing from 3 to 7 km/h within approx. 3 seconds, your pedelec is also supporting you with motor power if you are driving faster than 25 km/h. If the display runs the other way round, the motor support ends at 25 km/h.
The module remains in the respective state until the key combination is pressed again. Even after switching on/off the ebike.
Yamaha Syncdrive Pro2 or PW-X3 from engine year 2022
1. Unlatch the battery cover, and then remove it. The cover is still held on the sides with plastic clips.
2. Using a Torx T25 or your wrench, loosen the battery retaining screw. Note: It is a worm screw and cannot be removed. Hold the battery to prevent it from falling out, and then unlock and remove the battery with the fall protection lever on top of the battery.
3. Loosen the fastening screw of the left pedal crank with a size 8 Allen key. The screw also functions as a crank puller. Turn this until you can remove the crank.
4. Using a 2.5 allen key, loosen the four screws on the lower stone guard and remove it. Note: Different screws are used on the front and rear. Please note the position for later correct assembly.
5. Disconnect the two connectors for the display (6-pin labeled "Info") and the speed sensor (3-pin labeled "SS"). The plugs are held with a latch. You can easily loosen them with a light pressure of your fingernail or a narrow screwdriver.
6. Unscrew the three side cover screws. (Screw 1 with a 2.5 allen key, Screws 2 and 3 with a 2.0 allen key) Then remove the side cover.
Note: Screw 1 is identical but longer than the screws for the lower stone guard. Please do not mix up!
7. Connect the two connectors removed in step 5 with the corresponding counterparts from the module and place the connectors at the points marked with arrows.
8. Replace the side cover. In doing so, guide the two remaining connectors of the module out of the opening at the bottom right and guide the cable to the module out of the cover on the left. (see arrow) Then fix the cover again with the three screws. Be careful not to squeeze any cables!
9. Connect the two connectors of the module to the slots on the engine where you unplugged the original connectors in step 5.
10. Stow the chip in the frame as shown.
11. Replace the lower stone guard and secure with the four screws. Make sure to use the correct screws at the front and back. (see note of step 4)
Mount the pedal crank. Simply attach this and tighten the screw with a size 8 Allen key. The crank pulls onto the axle and is screwed tight at the same time.
Insert the battery and secure it with the loosened retaining screw or your key (see the user manual for your bike). Close the battery cover and fasten it again with the side clips and the retaining screw.