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Recent content by OG-Forestry

  1. OG-Forestry

    Old dog teaches me new exhaust port.

    I was looking for an oil cap for my flat top 66, and I pulled the muffler out that I took off it and replaced with a different muffler with a bark box. and I noticed at the bottom of the muffler it made a long skinny port where the actual cover didn’t meet the bottom of it. I was curious if...
  2. OG-Forestry

    661cm low compression but still runs strong…

    Gotcha and after taking a second look, I don’t think it’s running lean like I thought I think I may have freaked myself out 😅
  3. OG-Forestry

    661cm low compression but still runs strong…

    Gotcha and I am kind of concerned with that although I wasn’t sure if that was typical of the Tronics this is the only Tronics saw I’ve ever had or ran. thank you for that explanation that makes a lot of sense as to the volume issue. I will have to look into that. I mainly bought a compression...
  4. OG-Forestry

    661cm low compression but still runs strong…

    No it does not… that would make sense though, because I believe the flat top is woods ported and that could be why it makes higher compression than the 661. Also I tried it several different time even putting some oil on the threads of the compression tester in case it was leaking air or not...
  5. OG-Forestry

    661cm low compression but still runs strong…

    I used a brand new compression tester I purchased off of Amazon, and yes I did the worn out 460 had 105 psi, and an all original flathead 066 that runs pretty well for a retired falling saw hit 125 psi. Also the 661 held 100psi without dropping. ’m in the process of turning this into my...
  6. OG-Forestry

    661cm low compression but still runs strong…

    I’m trying to find out if this is normal, or if it’s time for rings, or if I possibly have a air leak. I have a 661cm that will barely make 100 psi of compression. Yet it pulls the 36” bar no problem and runs great It also seems to be running lean. No scoring on the piston or cylinder that I...
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