dissecting an earthquake chainsaw

[H 2 H]

i can't believe what i have started here,, everyone giving up their stihls and huskies for quakes,, thats just wrong:hmm3grin2orange::hmm3grin2orange::hmm3grin2orange:

That will never happen

Just broke in a newly rebuilt MS 260 today

And yes I did run the HUSKYQUAKE for a while but the way that 260 ran was just to much to put it down for any length of time

 

[Chris-PA]

they are all good...but holy crap....a $35 saw that runs and cuts.........you can only run one saw at a time.....when you have one that works as well as one that costs 10 times as much what are you guna do...mod the hell out of it and try to blow it up...little thing aint having any of that...just keeps running.......:hmm3grin2orange::hmm3grin2orange::hmm3grin2orange:

The fact is that these saws are based on one of the best small saw designs out there. They are far superior design-wise to something like an MS180, so all Earthquake had to do was copy it well enough and they had a winner. And they did it well enough. Now, it's still an obsolete non-strato version (as were the small Stihls up to now), but the chassis is the same and it certainly retains the feel. I really enjoy using mine.

Two piece alloy case
Quad transfers
Adjustable oiler (Also alloy)
Adjustable carb
Chain driven oil pump
Good spring/rubber A/V
Purge bulb and separate choke & switch control
Common bar mount & chain DL count

 

[jh35]

40 here today but still feet of snow.:msp_mad:

You must be farther north. Nothin' left here but the plowed banks.

 

[H 2 H]

Three tanks of fuel thru the HUSKYQUAKE (all limbing) this morning once you get over a 12" dia you can forget it

The difference between the HUSKYQUAKE (modded) and the stock Earthquake is kinda night and day

My brother has a number of Locust Trees and I cut a three down this morning; I haven't cut much Locust so I really can't judge much

Oh; one thing I found was using Stihl bar oil made it Ninja Samurai Sword

But for a $40 saw I can't complain one bit

 

[Chris-PA]

Three tanks of fuel thru the HUSKYQUAKE (all limbing) this morning once you get over a 12" dia you can forget it

Why? I pulled the spikes off mine so I could use the whole bar. What mods are on that one?

 

[H 2 H]

Why? I pulled the spikes off mine so I could use the whole bar. What mods are on that one?

Just simple port job; MM

 

[H 2 H]

Hey what is everyone running rpm's wise for there Earthquakes

Tomorrow (if it isn't pour down rain) I'm going to bring a tach with and see whats its running

 

[H 2 H]

isn't it kind of funny when the speedometer costs more than the car...:hmm3grin2orange::hmm3grin2orange::hmm3grin2orange:

LOL; I haven't hooked a works connection or used a fast tach on it

And I know each of those two cost more than the saw :msp_tongue:

I know every saw is different just need a ball park figure

I'm having a hard time with the small chips its put out; I stopped twice today and resharpen the chain guess I'm to use to 3/8's chain chips :msp_ohmy:

 

[o8f150]

Hey what is everyone running rpm's wise for there Earthquakes

Tomorrow (if it isn't pour down rain) I'm going to bring a tach with and see whats its running

if i remember right i had mine at 12100

 

[naturelover]

My stock one is at 10,500..


Sent from my iPhone 5 using Tapatalk

 

[H 2 H]

Just got home from cutting with it

I set it to 2800 and 12K I was at 11K

I cut Fir tree today and it ran a whole lot better with the settings above

 

[singinwoodwackr]

Just got home from cutting with it

I set it to 2800 and 12K I was at 11K

I cut Fir tree today and it ran a whole lot better with the settings above

they do seem to have a rev limit. I set mine for around 12k and then tried to lean it out while cutting...wouldn't go past a certain point.

 

[Chris-PA]

they do seem to have a rev limit. I set mine for around 12k and then tried to lean it out while cutting...wouldn't go past a certain point.

Yeah, I'm starting to suspect so too. Has anyone with a tach been able to confirm this? It's fine with me if it does but it would be nice to know for tuning.

I'm thinking a little spark advance would help it some. It sure wakes up the Poulans. I may have to try giving it 3deg or so.

 

[o8f150]

Yeah, I'm starting to suspect so too. Has anyone with a tach been able to confirm this? It's fine with me if it does but it would be nice to know for tuning.

I'm thinking a little spark advance would help it some. It sure wakes up the Poulans. I may have to try giving it 3deg or so.

i am to tired to read all the pages,, but i did post mt tach specs a few pages back,, yes i feel like hell right now

 

[dff110]

i am to tired to read all the pages,, but i did post mt tach specs a few pages back,, yes i feel like hell right now

This is what happens when the original quake maniac sells his last quake!

 

[H 2 H]

they do seem to have a rev limit. I set mine for around 12k and then tried to lean it out while cutting...wouldn't go past a certain point.

On my fast tach it read 124 one time

 

[diggers_dad]

With the stock filter set up it cut best about 8,600 rpm. WOT without a load was 11,600 rpm.

After all of my mods, including my air filter set up, it cut best around 9,500 rpm. WOT without a load was 12,500 rpm.

I'm pretty sure I leaned it out all I could and don't think I got it above 12,500 without load.

dd

 

[Chris-PA]

I'm pretty sure I leaned it out all I could and don't think I got it above 12,500 without load.

dd

After running various muffler modded Poulans I noticed initially that the Earthquake did not seem like it wanted to rev. Given that the carb is the same size as the one on a 42cc Poulan, plus the porting I did and the MM, it seems like it should at least rev higher than it sounds like it is. And it does pull OK in the cut.

I think at this point I going to tune it on the assumption that it is rev limited, and just listen to it in the cut. No quick no-load "4-stroke" tuning on this one.

Edit: I've also noticed in the specs of various Chinese chainsaws that they list a max rpm, which I always thought was curious.

 

[WSJchester]

I have to say that I've found this thread to be the most unusual, disturbing and, frankly, silly that I've had occassion to read in all my years on this forum. Earthquake. 38 cc. Really.

This forum used to be about the very best chainsaws in the world, the best old classics and the best new pro saws. The largest displacements, most power, fastest cut times, reliability, longevity. And now it's $35 Chinese mini-saws?! One hundred thirty two (and counting) pages of Chinese mini-saws??!! Maybe the Mayans were right all along - the world as I knew it here no longer exists.

BTW Any of you fellows who got one back in December when they were still cheap have any interest in hooking me up?

-WSJ

 

[dswensen]

BTW Any of you fellows who got one back in December when they were still cheap have any interest in hooking me up?

THERE it is!!!!!