Last June I began to experience an unknown problem on my 2008 Vectrix. It had 10.000Km on the counter and with the raise of ambient temperatures, when I rode at full throttle and the system was giving its maximum output during accelerations, at speeds over 50Kmh, the motor seemed to have “blackouts” for less than a second, which repeated unless the throttle was released to at least ¾ or less. The sensation for the rider was similar to that of a gas bike with its ignition off-timed. The comparison with lead battery electric bikes is when voltage goes down the preset limit and power is cut completely (something that the Vx1 does much better, gradually), and when voltage goes back above the limit, it works again. But in this case the cycles where very fast.
As the workaround was easy to follow, it didn’t happen frequently enough, and I was facing my vacation I didn’t go to the local dealer until October (asked for date in September), when this symptom began to be more frequent. They made a routinely check-up, cleaned the encoder, checked the throttle adjustment, etc. But a solution was not found. They had a newer bike with only 5.000Km with the same problem. A solution from the Spanish importer was not known by that time. They said that a Vectrix technician had gone to Switzerland to review a set of bikes that showed the same issue. So it seems to be a widespread known error.
Have any of you experienced this problem? Do you know the cause? I haven’t found related posts. If I have missed any please tell me.
By November, when colder temperatures arrived, the problem went worse. It happened even at very low speeds with low torque output required. So now I cannot exceed at any moment the ¾ position of the throttle.
The battery is entering its end of life. It has half of the original autonomy and tends to heat during recharges. I do still have warranty until next june and I don't want to change the charger firmware for the new one that has been provided in this forum. However my brother has experienced very good results with it (second release).
Thanks in advance for your help.