Echo 620, 501 and 390 - Air Filter sucks and we need help

[Cuttin530]

I run Red Beard filters on both my 590 and 620p, no complaints in 2 years.

 

[mainer_in_ak]

Just did a compression check on a bone stock cs 620pw. Been cutting with it continuously for over 3 years. Was starving for fuel, so cleaned the carb, drove in a new fuel nozzle adjusted the metering lever height for more fuel. Installed 3rd fresh spark plug. Came right back to life.

Lucas oil, 32:1 over the past year. Saber all through year 2 and red armor, 1st year of use.

Oh mah gawd, fine particles and the factory air filter!: