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can we have basic porting term thread?

cobey

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Uh-oh Cobey, you ain't been grinding on that 064 have ya?!
No junky 024's and stuff, no failures
Yet..... I don't think the 064 needs grinding. I have made them better,
But I want to know why I'm doing
What I'm doing .i have copied what I have seen done before. I can make 4 strokes
Go real good. Need to learn 2 cycles
 

czar800

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No junky 024's and stuff, no failures
Yet..... I don't think the 064 needs grinding. I have made them better,
But I want to know why I'm doing
What I'm doing .i have copied what I have seen done before. I can make 4 strokes
Go real good. Need to learn 2 cycles

You can send me those "junky 024's" ;)
 

jmssaws

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How come they are called 1122's


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That's the first numbers of every part on them. There 1122 series saw. 044 or 460 I can't remember which is a 1128 series.
 

jmssaws

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The latter is how I open the mains to keep from adding capacity.
 

SixGun

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Some of us newbies need to learn basic terminology, can we get help.
I know TDC bdc.... but blow down and stuff.
Lots of great guys on here willing to help.
Probably best if you ask about specific things or terms to be explained
 

ft. churchill

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Old photos 771.jpg Old photos 772.jpg Old photos 773.jpg

This is a 272 jug, we would call it out as having closed ports (the transfers have their own external tunnels to the cylinder walls). This also what we term as a dual or two port transfer design. Pic #2 is the upper and lower transfers, one upper transfer per side, left hand and right hand make it a dual port. The lower transfer is at the top of the pic as the jug is upside down for photos. The exhaust port is on pic #1 and the intake is pic #3. I'll go get some more photos for the OP.
 
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