start and stop after revving the throttle?

My Ryobi rimmer ill start and stop after revving the throttle.

the shop says needs to change the carburettor and charge $80...half the price of the trimmer...can some one teaach me how to change the carburretor? or have adiagram of how to change or service ?
joe, October 2005


done
pull the black plastic cover off the back and the carby will just unscrew remember to put the fuel lines back in same spot

jai, December 2005
I think your carb needs cleaned. Get a second opinion from another shop.

Rick, October 2005
link Click here to see other fixes for Ryobi.