View Full Version : Clutch and hard to find neutral

09-27-2007, 12:06 PM
Dont know if this have come up before but when checking vacuum lines I found one more reason why it could be hard to find neutral on your bike. My bike had stucked/broken oneway/check valve(black and white plastic barrel) in that vacuum line which goes from rear throttlebody to the clutch. There is similar valve in flapper vacuum line,couse I have my flapper disconnected I took the valve from there and my clutch is so mutch better now!

09-28-2007, 12:29 AM
I guess that the vacuum line you refer to is part of the Aprilia slipper clutch solution.