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The actuator spool is installed in the CIU housing with the actuator cable. The actuator spool is rotated to fully extend the cable. 2nd step. The carburettor cable and spool are installed and the other end of the carburettor cable is attached to the carburettors. Note the position of the roll pin. It is nearly contacting the end of the groove in the actuator spool. The free play in the carburettor cable must be adjusted so that the cable outer can be pulled out 2 ~ 3mm before the carburettors start to open. This ensures that the cruise control cannot prevent the carburettors returning to idle. If more free play is allowed the response of the cruise control is compromised. This adjustment of free play is usually performed after final assembly of the CIU is completed and the CIU is in its final location. This is because flexing the cable does effect the free play. It is shown at this stage in these diagrams to improve clarity. After this adjustment is performed, the carburettor cable adjustment MUST NOT BE MOVED. All future adjustments of free play in the throttle must be performed on the throttle cable from the throttle grip. If incorrect free play in this cable is suspected due to inconsistent cruise operation or because of inconsistent idle speed, the adjusters on the throttle cable from the hand grip must be backed all the way off to give as much free play as possible. If this does not result in AT LEAST 5mm of free play in the throttle cable, the throttle cable must be removed from the hand grip or CIU before adjustment of the carburettor cable is attempted. This is crucial because the amount of free play in the throttle cable also effects the apparent free play in the carburettor cable.
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BMW K1100 RS/ RT/ LT ABS 2 Electronic Cruise Control Installation Manual
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