[Scoob94]

Evening chaps, seem to have a very irritating nosie and motion from left side of the throttle body (if you were sat on the bike)
I understand when you ignition on, your would expect to hear the fuel pump and exhaust servo set itself, and i assum a servo on the throttle body would do something similar?
However the servo on the TB doesnt stop moving and ive left it for up to 10 mins and nothing stops.
Any of you guys heard of this, or experianced it yourself? Any light shed on it would help massively, ive just bought the bike and desperate to get it onto the track but i want peice of mind first.

 

[Scoob94]

Bike starts up, idles, rev’s up fine, i could understand the movemnet with the bike running, i just cant figure out why i get so much noose and activity under ignition only

 

[Czano]

The servo on the throttle bodies should move after you turn the key and open up the throttles bodies. This take a couple of seconds and it should do no further movements until you actually start the engine. Could it perhaps be that there's a part (ie. a gear) on the servo mechanism that is worn out so the motor is spinning freely and not actuating the throttle bodies? Can you remove the airbox and verify that the throttle bodies open up after turning the key? What kind of movement is going on in there while you hear the noise? A visual inspection would be the first thing I'd do.