ECHO Echo, Echo, Echo

[mainer_in_ak]

The 6700 drifted into "mini-milling". Figured the milling section would be better, for trying to explain the performance of Australian 3/8 low-profile bars, 3/8LP rim sprockets and logosol-sweden pmx ripping chain:

https://opeforum.com/threads/built-mini-mill-for-bush-alaska.27597/

 

[mainer_in_ak]

Found a very large woodburl on an Alaskan birch. Taking that one home. Even with a 27 inch bar-full of knarly/dense grain, that 620pw pulled through. I was getting some weird chain-chatter, as it's frozen solid. So I'd reef on that fkr, and she'd still pull.

I can't help but think that a 620p IS a milling saw. Since I bought multiple 3/8 lp sprockets, I'll have to time 16 ft long milling cuts against the cs 6700. The 620p will probably win.

 

[Nutball]

Found a very large woodburl on an Alaskan birch. Taking that one home. Even with a 27 inch bar-full of knarly/dense grain, that 620pw pulled through. I was getting some weird chain-chatter, as it's frozen solid. So I'd reef on that fkr, and she'd still pull.

I can't help but think that a 620p IS a milling saw. Since I bought multiple 3/8 lp sprockets, I'll have to time 16 ft long milling cuts against the cs 6700. The 620p will probably win.

I'd worry about breaking 3/8lp chain with a saw that big. Where did you find the LP sprockets anyway?

 

[mainer_in_ak]

Nutball, few posts back, a link to all the GB goodies.

I have milled three spruce trees so far with the lp goodies. That stihl pmx ripping chain has had zero stretch. I haven't adjusted the tensioner once.

It's rugged stuff, designed for logosol. My ported 6700 hangs right with a stihl 044 arctic, and has been very easy on the pmx milling chain.

Forgot to add, logosol recommends 90 cc saws on their larger mills using the 63 pmx ripping chain. Do you have any experience at all, with this type of chain?

 

[EchoShindaiwaMakitaDolmar]

Newb here! Echo are great saws just like Dolkitas, but I actually own a few Echos, so I'll have to post some pics in the near future.

 

[Bryan Newton]

Hello
I have an echo cs 500 evl with a walbro carburetor I am needing info on to replace it or rebuild it but I'm not real good at rebuilding carbs actually I have never rebuild one but I am learning how to repair saws as I go
Any help will be greatly appreciated

 

[FergusonTO35]

You may want to just send it to someone like Larry B and have him rebuild it for you. You say you are learning as you go, and I think its best to master less frustrating aspects of repair before you get into carbs. This is what I prefer to do myself.

 

[mainer_in_ak]

15 below zero yesterday. Just about tuned for milling. Ported 1201 loves carb heat and 32:1 amsoil saber. Gotta tune it with the entire 36" bar buried, then check spark plug color. Fkn bulldozer! Its name is "Mean-Paveen"

Can't go too rich with carb setting or she won't get up to temp.

On the verge of needing a bib over the bottom 1/3rd of the flywheel fins. Taped off most of filter cover vents with cold weather electrical tape.

WAY SMOOTHER and balanced motor, over a btch-ass stihl 881 mag that it replaced.

Amsoil is good, it has one of the coldest pour-points of any 2-stroke oils. Echo red armor crank residual gets all gummy in below zero temps, making big, high compression saws hard as fk to start.
The amsoil saber burns clean at 32:1. Not sure when this occurred,but they added a stabilizer to the saber.

 

[Battle Cross 2]

Nothing special just thought the picture turned out well. Ported 590 full wrap.

 

[FergusonTO35]

If that was my photo, it would mean I got pinched.

 

[mainer_in_ak]

Ferg, that legendary 590 torque, man you know that couldn't happen. Dmn thing would grunt through the pinch.

Now if it was a btch ass stihl 881 mag, might be a possibility, but it still wouldn't be your fault. Mine would bog to 0 rpms in a spruce knot!

 

[FergusonTO35]

I'm sure that's true, but I could get a CS-1201 pinched in balsa wood!

 

[Battle Cross 2]

If that was my photo, it would mean I got pinched.

just bored through the middle and let it hang there for the picture.

 

[merc_man]

Would any body happen to know a part number for a clutch spring for a 610 evl or if a spring from a different modle that will work

Sent from my SM-S901W using Tapatalk

 

[calcutta250]

Shout out to @Red97 for the sweet 4910! Sucker is a beast.

 

[farminkarman]

Shout out to @Red97 for the sweet 4910! Sucker is a beast.

+1

 

[mainer_in_ak]

Question for the Echo guys:
Picked up a coupla qv-8000 rescue saws for a decent deal, $250 a piece.

I've seen a couple guys claim that the qv-8000 had more aggressive port timing and compression, over the cs 800p or cs 8000. That's kinda hard for me to believe.

Has anyone put a degree wheel on a qv 8000, or tested compression, or timed cuts against the 800p?

 

[Red97]

Question for the Echo guys:
Picked up a coupla qv-8000 rescue saws for a decent deal, $250 a piece.

I've seen a couple guys claim that the qv-8000 had more aggressive port timing and compression, over the cs 800p or cs 8000. That's kinda hard for me to believe.

Has anyone put a degree wheel on a qv 8000, or tested compression, or timed cuts against the 800p?

A lot if it just depends on the year, earlier 8000s had the dual port flast top cylinder, and the later model had a quad upper, domed piston design. The late model is almost identical to the cs800. Stock power has been super similar among the 3 from what I have seen. Slight advantage to the newer quad upper cylinder design.

 

[mainer_in_ak]

Thanks Joe,
Here is the claim that I took a screen shot of. The guy claims he has compared several of qv rescue saws to a cs 800p and cs 8000, and that it was even different than that. I wonder if maybe the qv rescue saw was repaired, he wasn't aware of the repair and maybe the confusion?

 

[Red97]

Thanks Joe,
Here is the claim that I took a screen shot of. The guy claims he has compared several of qv rescue saws to a cs 800p and cs 8000, and that it was even different than that. I wonder if maybe the qv rescue saw was repaired, he wasn't aware of the repair and maybe the confusion?

I'm not sure, if they made 2 quad port upper cylinders the late 8000s were and the new 800 are. I want to say the qv I had was a quad port, but I can't say the transfers are larger than the cs800 quad port cylinder.