Post up your ported cylinder Artwork

[markds2]

Know poasts in weaks


Good direction

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394?

 

[huskihl]

394?

+2726

 

[Ronie]

Pulled the cylinder off my Redmax G5300 today, cut the squish band and cleaned the ports up.

 

[Maintenance Chief]

Whats them spots?

 

[Ronie]

Whats them spots?

Water, I washed it right before I took the pics.

 

[Ketchup]

Pulled the cylinder off my Redmax G5300 today, cut the squish band and cleaned the ports up.

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The primary looks ahead of the secondary a few degrees. Just an illusion?

 

[Ronie]

The primary looks ahead of the secondary a few degrees. Just an illusion?

Exhaust side opens first, that's the primary right?

 

[Canadian farm boy]

372oe

 

[PA Dan]

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Nice work brother![emoji106]

 

[Canadian farm boy]

MS880

 

[PA Dan]

MS880View attachment 321933View attachment 321934View attachment 321935View attachment 321936

And another....[emoji106]

 

[ZukiRyder400]

MS880View attachment 321933View attachment 321934View attachment 321935View attachment 321936

Purty

 

[Nutball]

 

[huskihl]

 

[sledneck22]

What are you guys using to polish your ports? mandrel with sandpaper or a sanding disk of sort? I read someone uses a buffing wheel and valve lapping compound. Just curious on what might work better than other ideas.

 

[huskihl]

What are you guys using to polish your ports? mandrel with sandpaper or a sanding disk of sort? I read someone uses a buffing wheel and valve lapping compound. Just curious on what might work better than other ideas.

Foredom with 80 grit in a mandrel

 

[srcarr52]

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I like your radius into the chamber? What did you use?

 

[huskihl]

I like your radius into the chamber? What did you use?

It’s the stock chamber. That’s as far as the scotchbrite ball would push up inside it

 

[Nutball]

 

[Shibby]

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I like this a lot, especially for cylinders that do not have a lot of material. Do you have an idea of how much it reduces compression having a small patch of the cylinder missing? I'm sure it could be offset with a pop up top. Would it be better to widen/square off the exhaust port or leave the original shape and notch the piston like this?