dissecting an earthquake chainsaw

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I took off the carb on my 38cc-er and the low side was 2 turns out and the high was 1-1/2 out. Has anyone else noticed this? I only ran it for a second yesterday cause I wanted to mod the d-d screws so I could tune it, but, I thought it was odd that would be the most turns out on the low side I have seen. Just wondering.


Also, o8 can you re-post your muffler mod pics? I didn't get to see them before they went
out.
Thanks,
Nick.
 
Yea, I had to turn the low side in probably a half turn or better. Responded well, but will still need to fine tune tomorrow, twas getting dark.

High was out 2-1/4 and was way too rich, still is at a little less than 2 turns out, but won't stray too far from that for now.
 
I thought something was fishy with those adjustments. But the saw was not run in wood before I got it and it sounded wrong for the 30 seconds I ran it in wood but it idled. Now I need to find the dremel and do some work. Thanks,
Nick.
 
The 38cc is clearly a RedMax G3800 design. It's non strato but still a very good design if the materials and manufacturing quality are good enough. The muffler will be choked badly though and it should respond well to a mod.

The larger saw in the initial pictures (gone now?) is different but clearly has some similarities in design approach and maybe some parts. I wonder who designed it? This is common when companies start by building products under license and then move to making their own - their first designs often are similar in concept. You could do a lot worse than starting from a RedMax design!

These are clearly used/returns/overstock. TSC sells a 41cc that appears to be G3800 or GZ4000 based saw, and a 45cc that is different. I wonder if any of them are strato engined - "NOTE: This product is not available for online purchase or shipment to the following states: CA". I wonder if they meet the latest regs or not.

Anyway, I'll stand by my earlier statement that you can't manufacture, ship and sell a chainsaw for $40 at a profit. These are clearly seconds/returns/etc, so it is not really fair to compare the deal to what you could buy new from someone else. But if they were strato I would even consider getting one.
 
The 38cc is clearly a RedMax G3800 design. It's non strato but still a very good design if the materials and manufacturing quality are good enough. The muffler will be choked badly though and it should respond well to a mod.

The larger saw in the initial pictures (gone now?) is different but clearly has some similarities in design approach and maybe some parts. I wonder who designed it? This is common when companies start by building products under license and then move to making their own - their first designs often are similar in concept. You could do a lot worse than starting from a RedMax design!

These are clearly used/returns/overstock. TSC sells a 41cc that appears to be G3800 or GZ4000 based saw, and a 45cc that is different. I wonder if any of them are strato engined - "NOTE: This product is not available for online purchase or shipment to the following states: CA". I wonder if they meet the latest regs or not.

Anyway, I'll stand by my earlier statement that you can't manufacture, ship and sell a chainsaw for $40 at a profit. These are clearly seconds/returns/etc, so it is not really fair to compare the deal to what you could buy new from someone else. But if they were strato I would even consider getting one.

They are, i'm pretty sure, display models....and the person selling them works for the parent company for earthquake....they probably are not carried by sears anymore and they got a shipment back from them and are trying to offload them quick....
 
They are, i'm pretty sure, display models....and the person selling them works for the parent company for earthquake....they probably are not carried by sears anymore and they got a shipment back from them and are trying to offload them quick....
With some modified carb screws and scored cylinders and such they are not just displays.
 
Ya know way back when, before all these fake auction shows I could drive a mile up the road to the auction house and get a pallet of cheap homelite ranger saws that were HD returns/overstocks and be into them for $10/saw...no way that would happen now, people come for a hundred mile radius on a Saturday and drive stuff up to retail, that reminds me...need to drag out a few snowblowers to sell today as the auction goers drive right by my place.

Back on topic, I am giving "chop suey" a real world test...kinda, I gave it to my buddies 22yo son to cut up a load of limbs he has in the back field of the tree farm. I have only muffler modded, tuned and set up the chain on the 511 so far, it seems to be throwing chips and has not been returned in a box so far but, the weekend is young. He normally cuts with an old farm boss and commented right away on how light suey was, time will tell if it holds up.
 
With some modified carb screws and scored cylinders and such they are not just displays.

Not some, only two thus far...

Ok...ya got me....both of mine had never been in wood...it is possible a store employee fired one up on not so good gas or way over revved it and caused scoring...most though, except these two you mentioned, are unused....and even my two have zero sawdust when they arrived....so probably display models. Sears also has repair services, one of the techs there could have cut the slots.
 
With some modified carb screws and scored cylinders and such they are not just displays.

You also could buy one instead of continuing to talk about how they cant make money on them....35 bucks on sale...and then check it out for yourself...you don't even have one yet you have all the answers:hmm3grin2orange::hmm3grin2orange:
 
If any of you guys live by a Sears Hardware outlet...check the dumpsters! I got three perfectly good mowers and a hundred foot rubber garden hose over the summer this past season. It seems some of them do not have techs and they just spray the serial numbers with red paint and toss the stuff out.
 
If any of you guys live by a Sears Hardware outlet...check the dumpsters! I got three perfectly good mowers and a hundred foot rubber garden hose over the summer this past season. It seems some of them do not have techs and they just spray the serial numbers with red paint and toss the stuff out.

I am on my way...my sears does not have a tech...chaching!
 
You also could buy one instead of continuing to talk about how they cant make money on them....35 bucks on sale...and then check it out for yourself...you don't even have one yet you have all the answers:hmm3grin2orange::hmm3grin2orange:
My McCulloch MS4018 is a rebadged RedMax GZ4000 - same basic saw as this but nicer quality castings, larger displacement and strato engine. I've had it apart and used it a fair amount so in fact I do know a bit about these saws. The G3800 design may be new to you but not to everyone else. I also have another 40cc and 42cc saw, so I really have no need of one of these, and they are old technology returns and stranded inventory. Enjoy it, just recognize it for what it is.
 
My McCulloch MS4018 is a rebadged RedMax GZ4000 - same basic saw as this but nicer quality castings, larger displacement and strato engine. I've had it apart and used it a fair amount so in fact I do know a bit about these saws. The G3800 design may be new to you but not to everyone else. I also have another 40cc and 42cc saw, so I really have no need of one of these, and they are old technology returns and stranded inventory. Enjoy it, just recognize it for what it is.

Still I think point of all of this is missed....they are cheap saws to do as one pleases with, and without worry of damaging a better saw through lack of maintenance or by overworking them....I agree, redmax 3800 clone to the core...but if you have ever cut out junipers then you know where a cheap saw can come in handy...or you have someone who knows little about chainsaws want to borrow one...quakie it is!

The best part of these is really the bar and chain and scrench and scabbard. It will be there long after the saw is dead for the worst case scenario...which I plan on using on my dolmar ps32 if that is the case.

Still, i doubt these would be sold as is if someone had actually used either of mine and then the seller went through them to remove any evidence of cutting wood...mine were both spotless when torn down.
 
If any of you guys live by a Sears Hardware outlet...check the dumpsters! I got three perfectly good mowers and a hundred foot rubber garden hose over the summer this past season. It seems some of them do not have techs and they just spray the serial numbers with red paint and toss the stuff out.

In Mt Vernon WA Sears has a service center that isn't by the local Sears store and I have been buy that place just a few times you would be surprised what you can find in the way of motor equipment :msp_wink:
 
I cut the slots in the carb adjusting screws and did a muff mod today, the saw is hard to adjust by ear. It's sooo quiet. Evan tho I bored a hole through the stainless baffle from the back of the muffler opening and down through the cat. Cut another slot down low and made it look like the factory ones. and opened the factory slots a little. Retuned and still had it way too rich. Then I let my bil cut and could tell better, so I kept tuning till it ran like it should and we put a couple tanks through it. Runs ok. The only thing is the oil is turned all the way up from the factory and it seemed to run out right before the gas mix I need to dial it down a little, or maybe it is too lean? Idk. I need to get a tach.
Nick.
 
I cut the slots in the carb adjusting screws and did a muff mod today, the saw is hard to adjust by ear. It's sooo quiet. Evan tho I bored a hole through the stainless baffle from the back of the muffler opening and down through the cat. Cut another slot down low and made it look like the factory ones. and opened the factory slots a little. Retuned and still had it way too rich. Then I let my bil cut and could tell better, so I kept tuning till it ran like it should and we put a couple tanks through it. Runs ok. The only thing is the oil is turned all the way up from the factory and it seemed to run out right before the gas mix I need to dial it down a little, or maybe it is too lean? Idk. I need to get a tach.
Nick.

Open up that puppy (muffler) the same size as the inlet :msp_wink:

I still need my stickers :)
 
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