Originally Posted by boxerboy81
Snowbum describes a problem with the ICU as one of the possible causes of this symptom, but I can't remember which version of the ICU it was and which model it was fitted to. If the carb and aux starter cables are all good, then it may be worth considering the ICU.
Mine was doing this until I replaced the ICM (ICU) with the latest heavy duty unit from Motorrad Elektrik. Now it starts on both cylinders right away.