echo 2 cycle weed trimmer

[boston]

My echo straight shaft has a lot if vibrating along the shaft and the head when idling. It runs normally when I press the trigger and it has plenty of power. What can cause this?

 

[Lawnranger]

My echo straight shaft has a lot if vibrating along the shaft and the head when idling. It runs normally when I press the trigger and it has plenty of power. What can cause this?

Possibly a lack of proper lubrication for the drive shaft/spring/gear head or a bent drive shaft/spring. Just a couple of thoughts. Did you disassemble it to check anything?

 

[boston]

No not yet but I bought it used and its very grimy and dirty so I'm going to clean it up a lot first