TPS Pig Tail

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Use your volt meter and save some money over the TPS tool, and so critical to set the exact idle voltage found in the service manuals. Depending on the motor, the red wire from the meter goes to the red wire on the pigtail and the black wire from the meter goes to the black wire on the big tail, which should be ground and feedback. You will know it's correct if you see something under one volt at idle and above 3.5 volts at full throttle, (125/250/300 is about 4.6v), You will have to power up the ECU with the wake up connector. Most bikes are black to black and red to red for volt meter wiring. Show more