Mastermind Meets The Echo 800P

[Red97]

@Red97 in that case… would you please care to chime in on this one?

I’d appreciate it greatly!

620 carbs are fuel happy, they should supply plenty. May even have to swap the nozzle if you can't lean it out enough.

 

[Ford3000]

620 carbs are fuel happy, they should supply plenty. May even have to swap the nozzle if you can't lean it out enough.

@Red97 , what Nozzle may need swapped out, and what one
fits in its place.

 

[Red97]

The main nozzle. I will grab the part number tomorrow.

Stihl 361 swaps and hda191 swaps for sure.

 

[MemphisMechanic]

620 carbs are fuel happy, they should supply plenty. May even have to swap the nozzle if you can't lean it out enough.

Excellent, thanks!

Any advice for grinding this jug? A quick simple gasket delete and something along the lines of an 80/100/120 port job are my plan, as above all it needs to remain an extremely reliable backup saw on tree jobs.

 

[Red97]

The main nozzle. I will grab the part number tomorrow.

Stihl 361 swaps and hda191 swaps for sure.

 

[Red97]

Excellent, thanks!

Any advice for grinding this jug? A quick simple gasket delete and something along the lines of an 80/100/120 port job are my plan, as above all it needs to remain an extremely reliable backup saw on tree jobs.

This was what I did to my last 8000/800 build.

 

[Ford3000]

View attachment 346517

Great information there, thanks.

 

[Ford3000]

This was what I did to my last 8000/800 build.

Great gains there for sure, and nice clean port work too,
very well done.
Any harm in asking how well a CS-620 responds to porting.

 

[Red97]

Great gains there for sure, and nice clean port work too,
very well done.
Any harm in asking how well a CS-620 responds to porting.

Thank you.

620 gains decent, but they are pretty stout out of the box
I do have a 620 build on my channel too.

 

[huskihl]

Thank you.

620 gains decent, but they are pretty stout out of the box
I do have a 620 build on my channel too.

They respond a lot better to a machined and ported 52mm cylinder lol

 

[Red97]

They respond a lot better to a machined and ported 52mm cylinder lol

Hope to have a 56mm done by your gtg....

 

[huskihl]

Hope to have a 56mm done by your gtg....

Cole be on that like a fly on stink

 

[Ford3000]

They respond a lot better to a machined and ported 52mm cylinder lol

What 52mm cylinder fits a 620, and you would need a piston too.
But even without porting 52mm would be a good jump in power.

 

[huskihl]

What 52mm cylinder fits a 620, and you would need a piston too.
But even without porting 52mm would be a good jump in power.

An 046 piston and cylinder after quite a bit of welding and grinding. And a homemade muffler. Makes it 79cc

 

[Ford3000]

An 046 piston and cylinder after quite a bit of welding and grinding. And a homemade muffler. Makes it 79cc

That sounds easy, so all I need is the aforementioned parts,
buy me a nice miller tig welder, get me some argon,
some filler rods, a lathe, a milling machine and a welding helmet.
And I can add 22cc 's to a 620, hmm, sounds like a bargin to me.
And then get it ported.

 

[Nutball]

That sounds easy, so all I need is the aforementioned parts,
buy me a nice miller tig welder, get me some argon,
some filler rods, a lathe, a milling machine and a welding helmet.
And I can add 22cc 's to a 620, hmm, sounds like a bargin to me.
And then get it ported.

No, you just send it to Red and he'll port it after doing all the other stuff for you.

 

[Ford3000]

Only joking folks, 22 cc 's extra would get you a lot
of looks from other 60cc saw users, I just see the look
on their faces.

 

[Ford3000]

No, you just send it to Red and he'll port it after doing all the other stuff for you.

Kinda split the workload, save some money by not doing it myself.

 

[Ford3000]

Nah, tooling up is one thing, knowing how to use them is another.
I see the work that goes into the porting on here, skill time
patience and experience involved there, none of which I currently
have.

 

[Red97]

Nah, tooling up is one thing, knowing how to use them is another.
I see the work that goes into the porting on here, skill time
patience and experience involved there, none of which I currently
have.

Here is a 54mm version.