Im not sure how you are getting your numbers but, 96-100 degress on the ex, 120-130 degrees on your transfers, 78-82 degrees on your intake, squish somewhere between 20-26 thou and you should be good and have a great running saw.
Len Hart Thanks for watching, I went to school for diesels (Detroit) in the late 70's which were mostly 2 cycles but more in line with automotive not small engines like chainsaws so this is a learning curve for me as well.
Craig Timmons, hi thanks for replying, when i was a kid i went to vo-tech for two years and took up diesel technology, now i wish i had paid closer attention, anyway got into construction what my family did and i enjoy it. You worked/learned about Detroit deisels, i think they are the neatest thing.
I know this is dang near two years old but you are figuring duration atleast in this video wrong...a saw with an exhaust opening of 105 will have 150* of duration,thats why a lot of people shoot for 100* to get 160*...the intake opening at 81* is fine will put you at 162* of duration....a little much but ok on a 90+cc saw....your intake duration was high due to milling the base.....im assuming the saw ran well...
Thanks for the comment, I went back and watched and just realized that I didn't have my degree wheel equalized hence the different readings on both the intake and exhaust open and closed they should have been the same reading but would not really have affected what you were describing. The saw runs like a Raped Ape, only issues to date is a broken pull cord and a carb issue (needle & lever) Not sure what happened to the video.
Im not sure how you are getting your numbers but, 96-100 degress on the ex, 120-130 degrees on your transfers, 78-82 degrees on your intake, squish somewhere between 20-26 thou and you should be good and have a great running saw.
Thanks for sharing what you picked up along the way. I picked up things from what you were saying. I am used to 4 strokes.
Len Hart Thanks for watching, I went to school for diesels (Detroit) in the late 70's which were mostly 2 cycles but more in line with automotive not small engines like chainsaws so this is a learning curve for me as well.
Craig Timmons, hi thanks for replying, when i was a kid i went to vo-tech for two years and took up diesel technology, now i wish i had paid closer attention, anyway got into construction what my family did and i enjoy it. You worked/learned about Detroit deisels, i think they are the neatest thing.
I know this is dang near two years old but you are figuring duration atleast in this video wrong...a saw with an exhaust opening of 105 will have 150* of duration,thats why a lot of people shoot for 100* to get 160*...the intake opening at 81* is fine will put you at 162* of duration....a little much but ok on a 90+cc saw....your intake duration was high due to milling the base.....im assuming the saw ran well...
Thanks for the comment, I went back and watched and just realized that I didn't have my degree wheel equalized hence the different readings on both the intake and exhaust open and closed they should have been the same reading but would not really have affected what you were describing.
The saw runs like a Raped Ape, only issues to date is a broken pull cord and a carb issue (needle & lever)
Not sure what happened to the video.
@@craigtimmons3468 yeah that's what I figured,ive found its a lot easier to set the wheel up starting at BDC...
You always know if your wheel is at a perfect zero because you SHOULD get the ex opening and closing at the exact same degree reading.
If it doesnt you need to re-zero your wheel
Video was lost at 10:12 it went to audio only
Video was good at prior time and I don't have that one any longer.
@@craigtimmons3468 that's ok, the audio was still full of information.
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