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huskihl

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did you see the culprit kevin ?

Good deal! Did you post your findings with jakes saw?
I didn't post it yet. Catching up here first. Not real sure what caused it. There was a tiny bit of transfer, more like a streak with 1 thick spot, below the exhaust. Maybe a bad bevel. Ring caught it on the way down and smeared it below the exhaust port. Sanded the whole cylinder wall with 180 on a mandrel with mineral spirits and took everything off. Then I re-beveled each port and scuffed off the piston. Piston was just shined up. Couldn't feel anything on it. Rings were unaffected. I fired it up but it was too dark to cut
 

jake wells

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I didn't post it yet. Catching up here first. Not real sure what caused it. There was a tiny bit of transfer, more like a streak with 1 thick spot, below the exhaust. Maybe a bad bevel. Ring caught it on the way down and smeared it below the exhaust port. Sanded the whole cylinder wall with 180 on a mandrel with mineral spirits and took everything off. Then I re-beveled each port and scuffed off the piston. Piston was just shined up. Couldn't feel anything on it. Rings were unaffected. I fired it up but it was too dark to cut
how clean was it inside considering i only managed 3.5 tanks through it?
 

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I didn't post it yet. Catching up here first. Not real sure what caused it. There was a tiny bit of transfer, more like a streak with 1 thick spot, below the exhaust. Maybe a bad bevel. Ring caught it on the way down and smeared it below the exhaust port. Sanded the whole cylinder wall with 180 on a mandrel with mineral spirits and took everything off. Then I re-beveled each port and scuffed off the piston. Piston was just shined up. Couldn't feel anything on it. Rings were unaffected. I fired it up but it was too dark to cut
Glad to hear it wasn't anything serious Kevin.
 

Time's Standing Stihl

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I didn't post it yet. Catching up here first. Not real sure what caused it. There was a tiny bit of transfer, more like a streak with 1 thick spot, below the exhaust. Maybe a bad bevel. Ring caught it on the way down and smeared it below the exhaust port. Sanded the whole cylinder wall with 180 on a mandrel with mineral spirits and took everything off. Then I re-beveled each port and scuffed off the piston. Piston was just shined up. Couldn't feel anything on it. Rings were unaffected. I fired it up but it was too dark to cut
Good deal man.
 

huskihl

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how clean was it inside considering i only managed 3.5 tanks through it?
It was fine. Looks like you're taking good care of it. But it's tuned pretty rich. Drowning it, really. Plug and piston are washed clean. The rest of the saw cleaned right up with air.
I'm gonna cut tomorrow with it at 13.5 and see how it does. I'll let you know where it seems best.
 

jake wells

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It was fine. Looks like you're taking good care of it. But it's tuned pretty rich. Drowning it, really. Plug and piston are washed clean. The rest of the saw cleaned right up with air.
I'm gonna cut tomorrow with it at 13.5 and see how it does. I'll let you know where it seems best.
i ran out of 32:1 and tuned the last half tank with mix out of my lawn boy. it was 20:1 supertech syn.
 
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