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!:

 

[mark davies]

hi all yes im running the a2 designs filter upgrade on my 621sx its defiantly a worthy upgrade for the 590,620,621 model no particles ender the carb at all its completely clean of any dust and the filter breaths really well with its outer ware filter and 400 filter set up hope this helps

 

[Wood Doctor]

I've never had any problem with an Echo 590 air filter. Echo saws are built to last. 'nuff said.

 

[92TRX300FW]

I've never had any problem with an Echo 590 air filter. Echo saws are built to last. 'nuff said.

the 590 filter sucks! the fines get through because there is no o ring or sealing material in te flter base

 

[EFSM]

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!:

Was the rubber in the nozzle swollen? I've seen that a couple times.

 

[mainer_in_ak]

Was the rubber in the nozzle swollen? I've seen that a couple times.

Think it got damaged running in the below zero temps. Either from icing up, or got brittle.