Clutch sensor has a little tab on the bottom, push in and wiggle off.
The temp sensor that matters is the coolant sensor, the air temp sensor you can completely remove and the bike is still ridable, it only causes minor fueling adjustments (I don't recommend doing so though).
So now that coil connections and relays are done, but problem persists. There are only a handful of things that can cause it, in order I would check/replace:
TPS
Coolant Temp Sensor
Spark Plugs
Fuel Filter
Coil Wires
Coils
At this point you really need TuneECU. If someone in the area has a cable it will at least allow you to check TPS, and Coolant Temp Sensor to eliminate them.