throttle arm Become difficult to move dz160
Hello
My problem with the engine dz160
After a few flights the throttle arm
Become difficult to move,and Then I need to disassemble the throttle barrel and clean it
And after a few more flights the Problem persists.
This is my second engine,My previous engine (dz160) was not this problem.
Asking for your help to solve the problem
Thanks
kobi