Оригинальный сообщение: Tracy ,
Make sure there is no dirt and junk around the engine unit. The shaft may need to be re-lubricated with a high heat lube. If the unit is a 2-cycle engine, make sure you have the correct fuel-oil mixture in the tank. Having no oil in the fuel mixture will ruin the unit, and possibly lead to melting parts. If the unit is 4-cycle (not common for a weed wacker) then make sure you give it an oil change.