Author Topic: Echo 590  (Read 3533 times)

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Offline sharkey

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Re: cs-590 wolf review. bone stock.
« Reply #40 on: May 31, 2014, 05:27:18 pm »
Just wanted to catalog the differences to the Echo cs-620p. 
Different carb: Walbro HDA-316, 15.88mm Venturi with a 19.03mm throttle bore. 
Different ignition: Slope Advance non limited ignition, 39 degrees advance BTDC at 12k rpm.
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Offline Cut4fun .

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Re: Echo 590
« Reply #41 on: May 01, 2018, 05:13:15 pm »
Finally broke down and bought a like new one to test out today. Echo 590.
Just wanted to see what this bang for the buck 60cc is about.
Husky 2 series guy bought it new and didnt care for it and went back to the older huskys.
So worked out for me to get it from him to try out myself. Chain dont even look like it has ever been touched. Spur dont even look marked.

Pics coming later
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Offline Cut4fun .

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Re: Echo 590
« Reply #42 on: May 02, 2018, 07:47:29 am »
echo 590 pics and a pic of the cylinder I found
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Offline Eccentric

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Re: Echo 590
« Reply #43 on: May 02, 2018, 04:11:18 pm »
That's a lotta saw for the $. 
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.
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Offline Cut4fun .

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Re: Echo 590
« Reply #44 on: May 03, 2018, 08:41:13 am »
red97 info to save

Stock ones do like 12,200-500.

Stock carb loves to feed the fuel, bout the same range as the 590 coil 13,500 max. Swear the coil was limited to 13,500. May be mistaken, could be 13,000.
Has a bypass, so it will not completely lean out, but it will scorch the saw over time. Aquired 2 of them like that.

Are these 45mm bore x 37mm stroke ?  :o

awol stock info
590
EX 113/134
IN 103/154 or 77 from tdc
TR 128/104
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Offline Eccentric

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Re: Echo 590
« Reply #45 on: May 03, 2018, 04:48:39 pm »
I've recommended the 590/600/620 series to a few folks looking to buy a new small/midsize firewood/farm saw for reasonable money.  In that price range, you can't get anything close to it from 'The Big Two', and we don't have any real Dolkita dealers within 100 miles.  Everyone has been happy with them so far......and you can even get the dang things from Home Depot...
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline Cut4fun .

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Re: Echo 590
« Reply #46 on: May 03, 2018, 07:39:42 pm »
red97 Joe confirmed.    45mm bore with 37.6mm stroke. Unreal.    :o


Joe = Stroke is actually 37.6 but yes really good candidate for a big bore.

The early 600's and maybe 620's have 38mm od bearings vs the std 6202 35mm that the later saws all share.
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Offline Cut4fun .

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Re: Echo 590
« Reply #47 on: June 09, 2018, 03:53:54 pm »
Got 3 of the test 60cc saws together today. Going to try and run the same chain on all of them ( started making one square and dropped the rakers a tad). If not will pull new chains out of box, as I think I have lgx in 70 and 72. These 3 70 right now. Think only exl in 72.
These 2 stock. I just wanted to compare the 590 to the 3750. I have tested the 3750's to 036 262 saws in past. Friend has a 357 I could ask to borrow. No 361's here anymore.

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Offline Cut4fun .

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Re: Echo 590
« Reply #48 on: June 09, 2018, 03:55:31 pm »
I been reading on folks complaining fines getting past their 590 air filters. Some said just use a o-ring on the throttle part or grease.
I looked at mine and yes there was some fines inside the air filter. Very slight. But I couldnt see where any had got intot the carb throat. But in my pea mind they could have and just not seen.
So I thought I would try 2 o-rings in places I seen that fines could possibility get by.
When in doubt use heavy grease etc too.

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Offline Cut4fun .

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Re: Echo 590
« Reply #49 on: June 09, 2018, 04:26:49 pm »
 Something I noticed once both saws was ready to use. 20" lamatied bars D176 and K041 and same chains on both. Both filled with mix and oil. The 590 felt bigger and heavier. So grabbed a digital scale. I dont know how much each holds on mix and bar oil. But came out like I felt in my hands. 18.2lbs 590 and 16.8lbs 3750 ready to use.

I bet the 590 torque wise will be a beast in the cuts even at the lower rpm with its stroke.
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