026 Carb's

[82f100swb]

Another video of that particular 026. You can hear the sharper sound(more compression,) how quick it wants to rev, and how it holds its rpm. It runs a good bit more rpm than stock as well. It's happy spot is 4 stroking around 16,200 no load.
I should get my stock red lever off of the shelf and do a back to back video.
This saw doesn't have a huge muffler mod, well, exhaust port side is not stock at all, but the exit is actually equivalent to a stock cover I have on the shelf, and it has the screen in place. I hit the point of deminishing returns on the muffler very quickly with this particular saw.
Timing numbers are 91/115/74, with 16.5 thou squish(tighter than I remembered) and compression is 187 psi. You will not be able to go that high on the exhaust and keep compression up unless you cut the squish band.

 

[drf256]

I couldn’t use more different numbers on an 026.

Making one keep up with a ported 261 is no easy task, the 026 advantage is it’s smaller size.

I’m interested in how you cut your band. Did you save pics?

 

[drf256]

Here’s one of mine at 105/118/76 in dry red oak. 25” RS full comp.

 

[82f100swb]

This saw was never supposed to be a build. Came out of a yard sale 5 saw $20 lot. Was just supposed to be a fuel line and a chain and sell it. I may have suffered some whiskey induced project creep... Completely winged the whole thing with some educated guesstimation. Didn't check numbers until it had been running for 6 months.
Squish band, well, this was built pre lathe, so the cut was sandpaper glued to an old piston in the drill press.

I need to get out and get some more test logs soon. I need to pick up a 3/8 sprocket for it too, want to try my 20" from my 660 on it mostly out of curiosity.

 

[BlackCoffin]

She *s-words and gets so maybe the whiskey is the real hero here?

 

[drf256]

Squish band, well, this was built pre lathe, so the cut was sandpaper glued to an old piston in the drill press.

Really the only way I know to get the band to match the slug besides cutting both flat. I can’t get the exhaust roof low enough without the flat cut.

 

[Glennmac]

Here’s one of mine at 105/118/76 in dry red oak. 25” RS full comp.

That’s nice!
Your saw .. it will cut!


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