064/056 mag11 build

[Keith Gandy]

That's what I'm talking about.
Absolutely have to be more accurate

Scarr is over the top!! Sharp fellow

 

[drf256]

Carb and boot will be here in a couple days.
I think it's a blow down problem but ill wait and see after the carb is upgraded.

I'm wondering if temporarily restricting the muffler will increase or decrease power myself.

I may have missed where you tried that.

But you have a "feel" for saws through experience that many of us (I don't) have.

Do you feel that the low blowdown is making you backstuff the transfers a bit? If so, is that helping or hurting power in your opinion?

With your transfers flowing so well, I'm wondering if a bit of back stuffing is keeping them in check. Maybe that's what happened on CFB's 66.

Just some mental diarrhea from me.

 

[drf256]

Scarr is over the top!! Sharp fellow

Yes he sure is.

 

[Redfin]

Looks like the only answer for this saws bd issue is a 190ish ex and a pipe.

 

[jmssaws]

I wonder if these cylinders vary timing like other Stihl cylinders?

@drf255 I've tried a stock muffler up to the cover off and it didn't change anything. The transfers are small so I don't think I'm over flowing,I'll get a video of what it does,zero rpm and it stumbles under a load, even when it won't 4stroke it still has a burble under a load. I'm gonna throw the piston and cylinder on one of my saws and see what happens.

 

[jmssaws]

I'm wondering if temporarily restricting the muffler will increase or decrease power myself.

I may have missed where you tried that.

But you have a "feel" for saws through experience that many of us (I don't) have.

Do you feel that the low blowdown is making you backstuff the transfers a bit? If so, is that helping or hurting power in your opinion?

With your transfers flowing so well, I'm wondering if a bit of back stuffing is keeping them in check. Maybe that's what happened on CFB's 66.

Just some mental diarrhea from me.

My 066 and cfb's will flow more than the carb can take so restricting the muffler slows things down and patches the problem,this saw isn't over flowing, the transfers are small,tiny in fact and it should be working fine but it aint.
A carb and boot will tell me if it needs more bd and I'm positive it does but I don't have a box of these cylinders so I'm waiting.

 

[Deets066]

I wonder if these cylinders vary timing like other Stihl cylinders?

@drf255 I've tried a stock muffler up to the cover off and it didn't change anything. The transfers are small so I don't think I'm over flowing,I'll get a video of what it does,zero rpm and it stumbles under a load, even when it won't 4stroke it still has a burble under a load. I'm gonna throw the piston and cylinder on one of my saws and see what happens.

These saws have really been fightin back lately huh

 

[hseII]

These saws have really been fightin back lately huh

He's Doing a Heck of a Job.

 

[laslabjohn]

I will have the 056 piston and cylinder for R/D headed your way shortly.

 

[jmssaws]

I will have the 056 piston and cylinder for R/D headed your way shortly.

Thanks john

 

[riverrat2]

I these threads .

Yup neat stuff

 

[jmssaws]

I bet I'm not out of carb anymore

 

[RI Chevy]

Wow. Big gulps right there!
You may need a remote fuel tank.

 

[smokey7]

Wow that carb is going on a work saw? What carb is that one?

 

[awol]

I bet I'm not out of carb anymore View attachment 30224

Depending on what you do with the intake tract, it'll be just about right. I have that very carb on my 5 cube saw, and its pretty well-mannered after a little tuning.

 

[Brush Ape]

The saw runs plenty good but I think it should run better.

hahahahaha that's what got us into this whole mess

 

[jmssaws]

Depending on what you do with the intake tract, it'll be just about right. I have that very carb on my 5 cube saw, and its pretty well-mannered after a little tuning.

The throttle linkage will be interesting
I have a 088 boot for it

 

[jmssaws]

hahahahaha that's what got us into this whole mess

So very true

 

[jmssaws]

I believe I only have 17 degrees of blow down and that is a problem and I don't want to raise the exhaust much so I might lower it more then raise to 99 or 98
I want 20 degrees but I'll be trading one evil for another, compression and intake duration.
Or I just raise the exhaust to 96 or 97

 

[junkman]

Just put a 39mm pwk air stryker on it and be done .