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AutoTune - Multi-Cylinder Tuning


Many bikes have a single exhaust which means that the exhaust gases from different cylinders are mixed together and AFR values that are read from a single sensor are then a combination from different cylinders.  On bikes which have multiple exhaust pipes it is possible to measure the AFR on all pipes and tune the cylinders individually. Note this method requires bungs to be installed on each header pipe. 

To map the cylinders individually with a single ZT-3, you would follow these steps. First ensure that you have not unified fuel cylinder maps, as you need to select each one individually. 
  1. Connect everything up to prepare for Live AutoTuning.
  2. Fit the O2 sensor to Cylinder 1, and Open Engine Data, click Autotune Live, in Autotune select CYL1 
  3. Complete the usual process - AutoTune Live for that cylinder
  4. Click 'Apply Autotuned Map', to save that cylinder's settings to your currently open Bin File.  Note that only the data for the selected cylinder is saved to your bin file.
  5. Close the AutoTune window.
  6. In the Live Engine Data window, click Stop, then click the blue numbers to clear the current log files. (resets to 0) to clear out the logs for Cylinder #1.
  7. Then move the sensor to Cylinder #2, and repeat the steps above with each cylinder on the bike
More detailed information on the use of Multi-Cylinder Tuning is available in our Woolich Professional Training Course.



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