Technical Guide: Yamaha Motorcycle CO Volume Adjustment via MOTOMASTER

Proper CO adjustment helps maintain engine performance and emission standards. Follow these steps to complete the adjustment using your OBDSTAR MOTOMASTER.

Tools Required:
OBDSTAR MOTOMASTER tablet

Step-by-Step Procedure
1. Initial System Entry
Power on your device and tap [DEMO] (or enter via the live diagnostic menu).
Locate and select Yamaha from the list of manufacturers.
Select [Common Special Functions].
Select [Idle Speed Adjustment].

yamaha-motorcycle-co-volume-adjustment-via-motomaster-1

yamaha-motorcycle-co-volume-adjustment-via-motomaster-2

yamaha-motorcycle-co-volume-adjustment-via-motomaster-3

2. ECU Activation
Follow the on-screen prompts to turn the ignition switch OFF and then back ON.
To activate the ECU, select [Temporary Activation].
From the function list, tap [CO volume adjustment 3].

yamaha-motorcycle-co-volume-adjustment-via-motomaster-4

yamaha-motorcycle-co-volume-adjustment-via-motomaster-5

yamaha-motorcycle-co-volume-adjustment-via-motomaster-6

3. Adjusting the CO Values
Carefully read and follow the on-screen safety instructions.
Tap [Change Mode] to enable the adjustment interface.
Select the specific cylinder and adjust the CO value by [Step ON] or [Step down] the levels as required by the engine specifications.

4. Completion
Once the desired levels are set, tap [Back] to save the settings and exit the function.
The system will confirm that the Yamaha CO adjustment is concluded.

yamaha-motorcycle-co-volume-adjustment-via-motomaster-7

yamaha-motorcycle-co-volume-adjustment-via-motomaster-8

yamaha-motorcycle-co-volume-adjustment-via-motomaster-9

yamaha-motorcycle-co-volume-adjustment-via-motomaster-10

Additional Resources
For a detailed visual demonstration, you can view the video guides at:

Support: www.obd2shop.co.uk

About Sales OBD2shop.co.uk 2544 Articles
OBD2shop.co.uk specializes in manufacturing and exporting car & truck OBD OBD2 EOBD diagnostic tools to worldwide.