Effect of ignition timing variations using a programmable ECU on power and torque of FI motorcycle

This study examines the effect of changes in ignition timing on the power and torque of a 4 stroke engine, the object of research is a Honda Beat FI vehicle in 2015 with a BRT programmed ECU. The purpose of this study is to determine the impact of changes in ignition timing on the power and torque produced. The method used is experimental research, namely data collection through testing using Dynotest tools before and after changes in ignition timing to do.The results showed that the change in ignition timing advanced 2° resulted in the greatest increase in power from 5.56 kW to 5.58 kW (0.75% increase compared to standard conditions). While the change in the delayed ignition timing by 2° resulted in the greatest increase in torque from 8.21 N-m to 8.28 N-m (0.97% increase over the standard test).