dissecting an earthquake chainsaw

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Just received my second Earthquake yesterday.

It was packed loose in a big auger box. I'm sure it got jostled around in shipping.

I now need to get the DD carb tool to richen up the Hi mix and I need to learn how to do a MM.

You don't need a special tool for the carb jets. Just take the carb off the saw, unscrew the jets and cut a slot in each jet with the thinnest dremel disk you can find.
 
I got my second Earthquake today. No premix oil, but there was a scrench, bar, chain and scabbard. The engine turned over easily, so I put the bar/chain on it, gassed it up and it fired on the third pull.

I had a pallet I wanted to cut up, so I went out to the firewood area to cut it up. Just like my first EQ, this saw did not want to rev. In fact, as others have posted, some of these saws almost stall if you pin the throttle (and if they don't stall, it takes a good 1-2 seconds to spool up). I'm sure the L is set way too lean. Once it spooled up, the H side sounded good: it 4 stroked out of the cut and once in the cut (granted it was just a pallet!) it cleaned up and pulled well.

My first EQ is being put back together after a MM, removal of base gasket, slight exhaust port widening, intake/exhaust port adjustment (to restore port timing following base gasket removal) and slotting the jets.

These are fun saws to play with!
 
I got my second Earthquake today. No premix oil, but there was a scrench, bar, chain and scabbard. The engine turned over easily, so I put the bar/chain on it, gassed it up and it fired on the third pull.

I had a pallet I wanted to cut up, so I went out to the firewood area to cut it up. Just like my first EQ, this saw did not want to rev. In fact, as others have posted, some of these saws almost stall if you pin the throttle (and if they don't stall, it takes a good 1-2 seconds to spool up). I'm sure the L is set way too lean. Once it spooled up, the H side sounded good: it 4 stroked out of the cut and once in the cut (granted it was just a pallet!) it cleaned up and pulled well.

My first EQ is being put back together after a MM, removal of base gasket, slight exhaust port widening, intake/exhaust port adjustment (to restore port timing following base gasket removal) and slotting the jets.

These are fun saws to play with!

I don't understand port exhaust timing how do you adjust timing
 
I got a scrench AND a file!

After my first one came without any goodies and no chain (provided upon request by the seller), my second one emerged from Fed Ex purgatory today. This one had a chain, and also came with a scrench and file!! Bonus day for me!

Half full of gas, never seen bar oil, and had Sears tape on the box. No dust under the covers - never seen wood. A couple of small odd burn marks on the chain brake handle - took me a few minutes to realize someone holding a cigarette had been holding the saw.

Blows 130 PSI cold.

Anyway, like most here, the saw about falls flat when you hit the throttle - should be an easy fix. As soon as I get a little time, it'll get a muffler mod, slotted carb adjustment screws, and a healthy dose of lean enrichment.

Should be great just like my first one.
 
[video=youtube_share;0M9SikeKBxA]http://youtu.be/0M9SikeKBxA[/video]

Besides the massive exhaust porting you showed earlier, what else did you do? Nice work and thanks for the video, too.
I'm about ready to go back into mine and enlarge the exhaust. These little guys really run quite well once they can breathe.



After my first one came without any goodies and no chain (provided upon request by the seller), my second one emerged from Fed Ex purgatory today. This one had a chain, and also came with a scrench and file!! Bonus day for me!

Half full of gas, never seen bar oil, and had Sears tape on the box. No dust under the covers - never seen wood. A couple of small odd burn marks on the chain brake handle - took me a few minutes to realize someone holding a cigarette had been holding the saw.

you guys have got to quit buying these things......they are getting expensive.....:msp_biggrin::msp_biggrin:

just a bottle of oil short of a full load....:msp_confused:...I didn't get any oil with the 6 I bought either....what are the chances....

want mine? :p

Wait a minute!!! You guys are getting saws that RUN?!? I'm just buying these for the bar oil, scrench and file. Are you telling me these saws might actually cut wood??? Scott told me to save the oil, scrench and file and send the rest to him!!! Dang it! :bang::bang:
 
Besides the massive exhaust porting you showed earlier, what else did you do? Nice work and thanks for the video, too.
I'm about ready to go back into mine and enlarge the exhaust. These little guys really run quite well once they can breathe.











Wait a minute!!! You guys are getting saws that RUN?!? I'm just buying these for the bar oil, scrench and file. Are you telling me these saws might actually cut wood??? Scott told me to save the oil, scrench and file and send the rest to him!!! Dang it! :bang::bang:

you are such a sucker to fall for that old trick :D:D:D
 
well i finally got to open the boxes today,, 1 is new the others where lightly used,,, 1 of them didn,t have a b/c,, buts thats ok i have a 12" b/c for it,, going to start tearing them apart tommorow
 
Just got my latest one in. It had been used but was (sort of) packed in its original box. Saw, bar, chain, scrench, manual and scabbard. There was no fuel or bar oil in it, those had leaked all over the box.

On the plus side - no damage whatsoever to the saw, all parts accounted for. It blew 172 psi on my gauge. I just put it on the stack with the others. I will get more aggressive with this port work. I am bidding on three more right now...
 
Just got my latest one in. It had been used but was (sort of) packed in its original box. Saw, bar, chain, scrench, manual and scabbard. There was no fuel or bar oil in it, those had leaked all over the box.

On the plus side - no damage whatsoever to the saw, all parts accounted for. It blew 172 psi on my gauge. I just put it on the stack with the others. I will get more aggressive with this port work. I am bidding on three more right now...

you keep it up and i will drive to your place and kick your azz,,, STOP BUYING THEM ALL,, leave some for us:msp_biggrin::msp_biggrin::msp_biggrin:

2 of the boxes of mine where soaked too,, but 1 of them was brand new,, i am not complaining though,,, i know this is a stupid question but wasn't these poulan/echo bar mounts??? i have such a bad freaking headache that i don't remember
 
this is my first one. It is the weakest feeling of mine....it is as shipped...not started...cold....:msp_w00t:

I think it has potential... :msp_sleep: The three I have started seem to have a lot more snap...

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Yeah I would ship it back to the seller it doesn't have enough compression to me :jester:



JMO
 
What in the hell are y'all doing in this thread? :buttkick:


Just playing with cheap chainsaws :msp_biggrin:

When you can play with a chain saw that cost under $40 and make them run better than when they came it makes it alot easier to work on name brand saws

The R & D work is alot cheaper :msp_w00t:


JMO
 

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