Join Date: May 2007
Sportbike: 05 CBR600RR
Years Riding: 1 year
How you found us: CBR Forum
Is your clutch engaging? If it isn't engaging then check if there is 12V at the wire for the clutch solenoid(GY/WH).
If there is 12V
If the clutch is receiving 12V, it should engage. I would check the resistance on the clutch coil, the coil might have burned out. If the coil is burned out, the clutch won't work.
If there isn't 12V
The clutch receives power from the Compressor clutch relay, so the first thing I would check is to see if this relay is working properly. Check for 12V at the coil side, if there isn't 12V then one of the A/C controls is stopping the clutch from engaging. From the schematic I am looking at, it seems that the PCM grounds the coil side of the relay. The coil side of the relay gets power from the fuel pump relay. The PCM receives a signal from A/C clutch cycling pressure switch, Refrigerant contamination switch, and function selector switch. I haven't read all the stuff on this system, but here is how I think it works. Power goes to the selector switch, if you select A/C or whatever, power flows to the rest of the circuit. The circuit has two more switches, the pressure switch and contamination switch. If both of these switches are closed, the PCM receives a 12V signal. This tells the PCM that the A/C system is OK to turn on. Then then grounds the coil side of the relay, which in turn closes the switch side of the relay. This causes power to flow to A/C compressor clutch and the compressor should engage. There is also a diode in the compressor clutch circuit, it is suppose to absorb voltage spikes.
If you want schematics so you can check them out for yourself, I can probably get them for you.
In motorcycle terms, that's like taking your Ducati to a dealer for service, and they hand you back a 1979 backfiring Honda 400 Hawk.. because after all, a bike is a bike.