MMWS 400

[woodfarmer]

So I picked this up from Bryanr2. Seems like a nice saw. Only had time to run one tank through it cutting up some ash. I’ve never seen a stock one so have nothing to compare too, however I think I was expecting a bit more jam. It is lighter than my 2171’s and 500i’s so I’m sure it will be much easier on the body carrying it around for the day than the aforementioned.

 

[stihl livin]

8-10 tanks doesn’t seem like it has really reach full break in.

 

[HWRDBNZ]

So I picked this up from Bryanr2. Seems like a nice saw. Only had time to run one tank through it cutting up some ash. I’ve never seen a stock one so have nothing to compare too, however I think I was expecting a bit more jam. It is lighter than my 2171’s and 500i’s so I’m View attachment 441868 sure it will be much easier on the body carrying it around for the day than the aforementioned.

What is your definition of a bit more jam? Details are always helpful.

 

[drf256]

Randy builds a solid saw, Focused more on reliability than all out speed. Most of the builders would rather have a saw last than be slightly more powerful.

If you wanted a balls to the wall saw, he could do that too.

 

[EchoShindaiwaMakitaDolmar]

The beauty of a competently optimized/ported work saw is that it'll cleanly outperform the stock version, while giving the same reliability & life span.

 

[Catfishclark89]

My mmws 400 turned into a different saw at about the 15 tank mark. Hang in there.

 

[drf256]

Some of us believe that the MT has a factory default that keeps the saw tuned richer for a period of time.

Many seem to “come alive” suddenly vs standard saws slow improvement with continued break in.

Not sure if anyone has been able to verify this suspicion.

 

[Rich Fife]

12-15 tanks seems to be the magic number/range.

 

[Oldbuzzard]

Some of us believe that the MT has a factory default that keeps the saw tuned richer for a period of time.

Many seem to “come alive” suddenly vs standard saws slow improvement with continued break in.

Not sure if anyone has been able to verify this suspicion.

Interesting. All Mtronics or just a few models?

 

[woodfarmer]

Put the west coast kit on today.
Now if someone at stihl sees this and sends me a nice new bar as the finish on these is garbage.

 

[wap13]

Got a PN for the west coast kit?

 

[Mastermind]

So I picked this up from Bryanr2. Seems like a nice saw. Only had time to run one tank through it cutting up some ash. I’ve never seen a stock one so have nothing to compare too, however I think I was expecting a bit more jam. It is lighter than my 2171’s and 500i’s so I’m View attachment 441868 sure it will be much easier on the body carrying it around for the day than the aforementioned.

More jam can be added. As I do more of the same model I find a little more here and there. I'd be happy to rework it if needed.

 

[woodfarmer]

MM, do you recall how this one was ported. Mild, medium or aggressive?

1140-007-1012

 

[Mastermind]

MM, do you recall how this one was ported. Mild, medium or aggressive?

1140-007-1012

I usually start conservatively until I'm sure that the saw behaves as well as a stock saw after the mods. If it's one of the first few, I likely didn't start with a lot of added compression. @Woodpecker has one that I just repaired, and did a few more tweaks to while it was apart. He could tell you more about how his saw runs, as it has a lot of fuel thru it.

 

[woodfarmer]

Thanks, I’ll be putting some hours on it as soon as these snow storms stop.