Hi siroco,
Without any data we would just be guessing what to do to improve your bike. The best approach is to collect some data. The PV-3 has data logging capability. With the software, or maybe on the unit itself connected to the bike, set it to log all the available channels as shown below. Riide until the bike is fully warmed up. Just before you ride in the area that causes trouble, pull the clutch and give the motor a couple quick revs, then ride in the problem zone. We will use the "rev marker" in the data to find the right area to look at. If the problem does not happen just repeat the process.
Without any data we would just be guessing what to do to improve your bike. The best approach is to collect some data. The PV-3 has data logging capability. With the software, or maybe on the unit itself connected to the bike, set it to log all the available channels as shown below. Riide until the bike is fully warmed up. Just before you ride in the area that causes trouble, pull the clutch and give the motor a couple quick revs, then ride in the problem zone. We will use the "rev marker" in the data to find the right area to look at. If the problem does not happen just repeat the process.