What to do with a ms250

[idiotwithasaw]

025= 42mm bore
Ms250= 42.5mm bore

 

[Hedgerow]

That's what I was thinking.

Both need more carb.

By whatever means necessary.

 

[idiotwithasaw]

I do have a question was there ever a time when they were a dual open port, I always thought they were quad open ports but I have one that looks like a ms250 but it's a dual port. Very confusing.

 

[Hedgerow]

025 was a dual port open.

 

[David Young]

Ben if it's a 42 mm I want it! I've got an evil plan. Muwahahahah

 

[czar800]

You guys got me thinking......

 

[Hedgerow]

Look at the ex port, then follow the path to your outlet.

 

[czar800]

Maybe I'll put the wheel on it...... And just clean things up..... Ok remove just a little.......

Anyone want to share some #s? I have a wt215 carb ready. It that enough carb?

 

[Brian Simonseth]

Cut the center of the baffle out

Make a hole straight to the hole in the inner section of the muffler

 

[Brian Simonseth]

Maybe I'll put the wheel on it...... And just clean things up..... Ok remove just a little.......

Anyone want to share some #s? I have a wt215 carb ready. It that enough carb?

215 will be just fine

 

[MasterMech]

Stocker with a muff mod that I did last year. Guy thinks it is da bomb diggity. Little bastard does cut pretty good!

Trimmer gas cap is worth 2-3 seconds in the cut for sure.

 

[Hedgerow]

Maybe I'll put the wheel on it...... And just clean things up..... Ok remove just a little.......

Anyone want to share some #s? I have a wt215 carb ready. It that enough carb?

Put the wheel on it..
In. 163
Ex. 166
BD. 15

215 will function great, but leaves a lot of performance on the table.

Need to tidy it up a little.

 

[David Young]

Put the wheel on it..
In. 163
Ex. 166
BD. 15

215 will function great, but leaves a lot of performance on the table.

Need to tidy it up a little.

2 or 4 port?

 

[Magic_Man]

Put the wheel on it..
In. 163
Ex. 166
BD. 15

215 will function great, but leaves a lot of performance on the table.

Need to tidy it up a little.

Did you do anything with the squish ? I have heard of guys welding pop ups but also milling the jug and recutting the bearing pockets.

 

[Hedgerow]

2 or 4 port?

2

 

[Hedgerow]

Did you do anything with the squish ? I have heard of guys welding pop ups but also milling the jug and recutting the bearing pockets.

In the past I have. But was not worth 10 pounds of comp and heavy piston.
Just make it a better pump and it'll produce more rpm's and power.
Ex. is high on the 025's. I'd be interested to see if stihl lowered it on the 250's.

 

[Hedgerow]

@Hedgerow

He grinded on an 025. It rips with a nice chain. Based on what I have seen with his, yes, it is worth grinding on.

Thomas, do you have any vid of Sam's 023 or Levi's 025 racing?
I can't find anything.

 

[Hinerman]

Thomas, do you have any vid of Sam's 023 or Levi's 025 racing?
I can't find anything.

No

 

[Hedgerow]

No

Well crap..

 

[David Young]

In the past I have. But was not worth 10 pounds of comp and heavy piston.
Just make it a better pump and it'll produce more rpm's and power.
Ex. is high on the 025's. I'd be interested to see if stihl lowered it on the 250's.

I think I have the numbers written down in my shop.