ms362c build for the 12 saws of Christmas

[jmssaws]

If I remember correctly Alan adjusts the stratos so they are timed equally with the intake

Roger
How do you see when the strato open?

 

[paragonbuilder]

Roger
How do you see when the strato open?

It was in a thread somewhere. I'll look and see if I can find it.

 

[huskihl]

Probably have to measure from the bottom of the intake up to the stratos, and then transfer it to the piston

 

[paragonbuilder]

Here is awol's thread.
A Little Improvement Porting The 562xp

https://r.tapatalk.com/shareLink?ur...&share_tid=974&share_fid=1392778&share_type=t

 

[drf256]

Good read Dan. Thanks for posting that.

What does equaling the stratos actually do for the Saw? Back fill the transfers with more pressure?

 

[mdavlee]

It just gets more air in the crankcase.

 

[paragonbuilder]

It just gets more air in the crankcase.

Do they tend to run rich Mike? Or able to pressurize the case better?

 

[mdavlee]

Do they tend to run rich Mike? Or able to pressurize the case better?

Leaner. There's more fresh air. They can run stupid intake timing compared to a normal 2 stroke

 

[paragonbuilder]

Leaner. There's more fresh air. They can run stupid intake timing compared to a normal 2 stroke

If they are already leaner, why add to the strato timing? Wouldn't this make it even leaner? Or does the autotune compensate for it?

 

[mdavlee]

Fuel just feeds through the main intake. They waste less fuel and burn cleaner towards lean

 

[jmssaws]

Cylinder is junk but dave is sending me one so hopefully I'll finish one night next week.
He also had a top cover so this is going to be a very nice saw.

 

[drf256]

Leaner. There's more fresh air. They can run stupid intake timing compared to a normal 2 stroke

Can you explain why mike? Do the stratos build case pressure?

 

[mdavlee]

Can you explain why mike? Do the stratos build case pressure?

Stratos are feeding fresh air into the cylinder which gets mixed in the crankcase and sent to the chamber.

 

[jmssaws]

Ok this thing is alive and it sounds ok
I'll find out how it runs tomorrow.
Cleaned up nice

 

[awol]

Roger
How do you see when the strato open?

On the 362/441 and others with hidden uppers, I blow into the lowers with my own sweet lips while holding a finger over the piston pin hole on the inside of piston, and slide piston up and down to find opening point. It's kinda hard to explain, but real simple in principle.

 

[jmssaws]

On the 362/441 and others with hidden uppers, I blow into the lowers with my own sweet lips while holding a finger over the piston pin hole on the inside of piston, and slide piston up and down to find opening point. It's kinda hard to explain, but real simple in principle.

I smell exactly what you are stepping in.
Thanks Alan

 

[awol]

Good deal. A little harmonica-playing experience would come in handy when trying to shape your lips to those lowers!

Oh, and the Stihl seems to like a little head start on the stratos over the intake; must have to do with their small, short tunnels and lack of crank stuffers.

 

[jmssaws]

I do several 441's and it looks just like one so I just did it the same as I do 441's

Didn't know any numbers that work so I just guessed. I'll probably have to raise the transfers more.

 

[jmssaws]

It was dark when I got it together so a piss rev is all I've got until tomorrow.

 

[paragonbuilder]

It was dark when I got it together so a piss rev is all I've got until tomorrow.

Sounds good. Great throttle response!