ECHO Echo, Echo, Echo

[Mastermind]

We just did a base gasket delete, muffler mod, and timing advance on one of those. Runs pretty well.

 

[FergusonTO35]

It's a clamshell, so what would the base gasket delete do for it?

 

[Mastermind]

It's a clamshell, so what would the base gasket delete do for it?

The saw we just did is a CS-490. My mistake.

 

[Woodtroll]

Ok, I think I've figured it out! See the flanged bushing inside the oil pump drive?

View attachment 469557

It is supposed to have the flange on the inside!

View attachment 469558

If you install it with the flange on the outside, the flange will contact the clutch shoes, thereby also turning the clutch drum! I reassembled it, and now it idles down to 2800 rpm without the chain turning. I don't remember ever taking that part out of the saw, but maybe I did at some point. Never too old to learn something new!

Glad that you figured it out, and that it was a cheap fix!

 

[STOVE]

I guess I’m a bit of an echo fanboy of sorts. All of my small engines outside of a hand me down homlite blower are echo.

I used my 590 yesterday to clear a large oak limb off a tractor. It’s amazing how easy all my echo stuff cranks. The carb is a little finicky but that’s what you get when you mess with stuff instead of leaving it factory.

I’m sure my 590 is not a compression monster but I can’t recall the last time any of my stuff took more than 3 pulls.

 

[FergusonTO35]

Thanks!