MAO CONCHA
New Member
Hi! I bought my Yamaha YDX Moro pro in Japan last October 2020. A few days ago while biking, it started to malfunction. First it registered an error 73 and just turn off by itself. When i switched it back on, again the same thing happened. I tried to change the drive unit from my brother's bike, (same model). Upon testing, it started okay at first but after a few minutes, (+/- 6 minutes) the battery monitor started to drain rapidly (less than 2 minutes from 91% to 0%) and lost all assist. The monitor is still on but the battery shows 0%. When I got home, I charge the battery, and after a few seconds, it came back again to 91%. (jump started the battery). I am sure same problem will happen again since it also happened to my brother's bike. Can anyone please help? Thanks!