I have just finished checking the valve clearances on my bike and prior to putting the tank back, thought I would double check the throttle body balance with TuneECU. I disconnected the MAP sensor from the airbox, plugged it into its connector and reconnected the vacuum pipe to the sensor before running the program with my tank balanced over the frame rails
Question . . . I happened to be writing up the procedure for next time but doing so with reference to the manual when I cam across a section in the manual which described removing the MAP sensor from the airbox. It stated to disconnect the plug and air pipe before removing the single screw holding the sensor in place and then "collecting the O-ring".
For reassembly, the manual states to use a new O-ring.
Now I'm puzzled because it never occurred to me there would be an O-ring there - I presumed it was just a convenient spot to mount the sensor and the only important bits are the air pipe connection and electrical plug to the sensor. O-rings are normally used when there is a need for a air/water/oil/gas tight seal. I checked an online parts supplier to see if an o-ring was showing with the MAP sensor but drew a blank.
Has anyone come across an O-ring in this position or is it simply a case of removing a single screw to remove the sensor?? I sure as hell don't want to retrace my steps to take a look and besides, the bike seems to be running fine . . . .
Thanks in advance anyone!!