Re: just put a stock pipe back on the 929 servo question
May be this will help:
1.Put back the exhaust valve with the stock wires and connect all sockets (if you already didn do it) and remove the cover from the valve (its mounted with 2 bolts).
2.Short the test plug located under the seat on the right side of the frame with jumper wire and turn on the ignition with the key.Engine-stop red button should be also in the on position.
3.Check the alighnment of the ex.valve - it should be pointed to the earth (directed down) mark.
4.Disconnect the jumper wire in the test plug.Valve should pointed to the horisontal (the middle one-directed to the front) position.
5.Start the engine and increase revs to 3000 - valve should turn to the upper mark.Increase revs to 8000 - valve should turns to the ground (down) mark.
DO NOT START THE ENGINE WITH THE TEST PLUG CONNECTED!
Mount bolts torgue 12 Nm.
Checked with the manual.