Was the Echo CS-7310P a fad or is anyone running them?

[EFSM]

We have sold some (not a lot of logging done in our area). We had a couple instances of oiler drive failures which prompted Echo to change the pitch/design of both gears. We also saw a case or two of the piston locator pin working its way into the piston due to the pin holes being drilled plenty deep, allowing the ring to turn. However, Echo changed that as well to prevent that from happening. So like most saws, there were a couple of slight bugs (although these failures happened on high hour heavy use saws), but Echo really stepped up and figured them out. Overall, they start extremely well, are smooth, and run well for not having electronic carburetion. They do require a significant break-in period (even more than most Echo's), so anyone who has ported/run a fairly new one is not getting a proper feel. The engine design fascinates me. Their 6 transfer ports allows a lot of aiming and flow without much duration. Also, if I remember correctly, the piston is Kaniboron coated, which makes it basically impervious to wear. This is a feature that Echo keeps pretty close to the vest. I believe the Kaniboron coating is something Echo is doing only after the Shindaiwa merger--done on 7410 concrete saw first, then 8010/9010 blower, and now 7310.

 

[mainer_in_ak]

One thing im going to try on mine, is to flatten the roof of the exhuast port but not so much as to catch a ring, delete the base gasket and leave the transfers alone. Open up the muffler a bit more.

On the lower transfers, I'd like to bevel the divider only on the secondary side, since the secondary transfers are smaller. Maybe divert some of the flow towards those secondary transfers.

With six upper transfers, I don't think transfer duration is my priority.

I won't raise or widen the exauhst port at all.

 

[Mig_Selv]

I run a 7310, completely stock, and have been very happy with it.
Got around 100 hours on it.
I run Echo saws now, as I'm in a place without dealer access within a couple of hours drive, so I need something that I can work on myself.
It does what it says on the tin, and is very reliable, compared to the new saws from Husky and Stihl.
It starts smooth enough that I never use the decompression, the noise level is comfortable, and the balance / ergonomics is good, not to mention the engine is running smooth and the low vibration.
I prefer the 7310 for the long days, in spite of the fact that it's slower on paper, as it really makes no big difference to me, compared to how comfortable it is to use, and the fatigue setting in much later.

 

[ZERO]

Yeah that’s basically where I was going. I like the echo for being old school. The other side of that is that for the same money I can get a new 372 0E from the Philippines and have a saw that has better parts availability and still an old school 2 stroke with an adjustable carburetor

Kevin, getting a new 372OE from the Philippines ... o baby @Stump Shot

Pairing that up with a 346 from an unknown place in Tennessee ... o baby +1 @Mastermind

That is as good as it gets with that old school all mechanical feel in my book!

 

[Woodtroll]

We have sold some (not a lot of logging done in our area). We had a couple instances of oiler drive failures which prompted Echo to change the pitch/design of both gears. We also saw a case or two of the piston locator pin working its way into the piston due to the pin holes being drilled plenty deep, allowing the ring to turn. However, Echo changed that as well to prevent that from happening. So like most saws, there were a couple of slight bugs (although these failures happened on high hour heavy use saws), but Echo really stepped up and figured them out. Overall, they start extremely well, are smooth, and run well for not having electronic carburetion. They do require a significant break-in period (even more than most Echo's), so anyone who has ported/run a fairly new one is not getting a proper feel. The engine design fascinates me. Their 6 transfer ports allows a lot of aiming and flow without much duration. Also, if I remember correctly, the piston is Kaniboron coated, which makes it basically impervious to wear. This is a feature that Echo keeps pretty close to the vest. I believe the Kaniboron coating is something Echo is doing only after the Shindaiwa merger--done on 7410 concrete saw first, then 8010/9010 blower, and now 7310.

I recently bought a new-in-box 7310, serial starts with C809150, tagged on the emissions sticker as Mar. 2022. I'm not sure when the 7310 was introduced, but it hasn't been out that long, so I wonder if mine is one of the pre-improvement saws? Anything I should do to upgrade this saw, or just keep running it and hope for the best? My 590 is my primary saw; I just use the 7310 when I'm cutting something bigger than 24" or so, which normally only happens once or twice a month. So far I'm very pleased with it, and I prefer the old-school technology that I can work on myself.

Thanks!

 

[mainer_in_ak]

I'm not enthused about any modern saw. I like making money runnin/wrenching on old school sht.

Nothing is nicer than bore cutting an entire 36" bar into a leaning tree and the $500 saw just chugs, pulling full house lgx chain: Ported cs 8000 with larger hda 45 carb.

BUT, The VA has already rebuilt one knuckle on my hand. I can't run any rubber AV saw in the below zero weather. So we'll see how this 7310 will pull a 32" bar. It's lighter than my cs 8000.

Few thing cool things so far:

Piston rings capture the pins. As others have mentioned, a coated piston

No screws go into plastic. All plastics have steel inserts. Like where the bottom of the handle screws attach to the tank assembly.

The pre cleaning on the air filter is so good, I've actually never seen a saw do better. Could probably go 3-4 months without ever cleaning it.

The ignition timing is so aggressive, that a timing advance is unnecessary.

Crankshaft at the clutch side is drilled, so that u can grease the clutch drum bearing without taking anything apart.

Basic 6202 steel caged crank bearings. No one-off, proprietary plastic caged bllsht that u have to wait on back-order.

Trick question:
Where can I send an old saw to be upgraded to strato-charged air leak? Laughing!

 

[huskihl]

Trick question:
Where can I send an old saw to be upgraded to strato-charged air leak?

Lol. You Tube much?

The “metered air leak” in a strato saw is identical to the air leak in every 2 stroke. Right through the intake.
Not certain what 101 was thinking there

 

[mainer_in_ak]

It there any way I could get the strato ports on my 2172 turbocharged? Also, I would like the mini-turbo equipped with an anodized blow off valve, plumbed into the decomp.

 

[Mastermind]

It there any way I could get the strato ports on my 2172 turbocharged?

All you need is a lot of hot air. YouTube is where to start.

 

[mainer_in_ak]

One more request, I want my plastics dipped lime green, I want carbon fiber graphics on my clutch cover. I also want 8 inch long spikes, with a zebra stripped paint job.

 

[mainer_in_ak]

Lol. You Tube much?

The “metered air leak” in a strato saw is identical to the air leak in every 2 stroke. Right through the intake.
Not certain what 101 was thinking there

Let me be more precise: I want shark-fin cutouts right into the strato ports. If it doesn't give me the sound I'm lookin for, I can always jb weld them.

 

[mainer_in_ak]

All you need is a lot of hot air. YouTube is where to start.

One more idea: I would like an octagon grind on the chain. This should hybridize all the positive attributes of square ground and round file chain. More sides than a hexa grind. Always better.

 

[Outdoors]

I recently bought a new-in-box 7310, serial starts with C809150, tagged on the emissions sticker as Mar. 2022. I'm not sure when the 7310 was introduced, but it hasn't been out that long, so I wonder if mine is one of the pre-improvement saws? Anything I should do to upgrade this saw, or just keep running it and hope for the best? My 590 is my primary saw; I just use the 7310 when I'm cutting something bigger than 24" or so, which normally only happens once or twice a month. So far I'm very pleased with it, and I prefer the old-school technology that I can work on myself.

Thanks!

I would definitely keep running it. I'm not sure on build dates, maybe others can chime in. We were only talking porting gains from equal saws. I think most guys on here prefer a desirable saw that can be tuned with a screwdriver and a good ear, heck with computers and bullsh## .

 

[mainer_in_ak]

I would definitely keep running it. I'm not sure on build dates, maybe others can chime in. We were only talking porting gains from equal saws. I think most guys on here prefer a desirable saw that can be tuned with a screwdriver and a good ear, heck with computers and bullsh## .

All this can be had right here:

 

[Outdoors]

All this can be had right here:

All this can be had right here:

With 50 easy payments of 91.00 buckeroos at a time. What a deal!

 

[mainer_in_ak]

The squish band is actually machined to 16 thousandths and its laser engraved to say: I Becky

 

[EFSM]

I recently bought a new-in-box 7310, serial starts with C809150, tagged on the emissions sticker as Mar. 2022. I'm not sure when the 7310 was introduced, but it hasn't been out that long, so I wonder if mine is one of the pre-improvement saws? Anything I should do to upgrade this saw, or just keep running it and hope for the best? My 590 is my primary saw; I just use the 7310 when I'm cutting something bigger than 24" or so, which normally only happens once or twice a month. So far I'm very pleased with it, and I prefer the old-school technology that I can work on myself.

Run it. The failures we saw were on high hour/high abuse saws, running up to 36'' bars.

 

[Woodtroll]

Run it. The failures we saw were on high hour/high abuse saws, running up to 36'' bars.

Thank you very much, that’s reassuring. I appreciate your response!

 

[Onan18]

If you have a warranty issue call the shop 770-266-0103 and I will take care of it for you.

 

[Woodtroll]

If you have a warranty issue call the shop 770-266-0103 and I will take care of it for you.

That's very generous, thank you very much! I've not had any problems with any of my Echo equipment that would be warranty issues - the few problems I've had were self-induced - but it's really nice to know there is support available if needed. Thanks again!