quick tip plz

2015 650 xmr. 3 problem. nock nock in rear sway bar bushings and i brought it 4 times to dealer they say keep grease in them and thats all i can do.. riding fast and fan seems.to alwais have to come on si i will raise the rad more so the wind actualy goes thru it. and small belt skweal at takeoff ? i only have 700 km on it …
any help and coments is greatly apreciated