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ZERO's latest activity
ZERO
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dangerousatom's post
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What saw is it? an older saw with no side transfers will leave oil in the CC more then ones with them. . .
Dec 10, 2025
ZERO
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dangerousatom's post
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Id say crappy oil too, or running a very rich mix a few tanks and oil built up in the bottom of the CC. Then the saw was run near...
Dec 10, 2025
ZERO
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jacob j.'s post
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Naw - those look like pretty average wear marks to me. Most two-cycle pistons will pick up wear lines or marks. Apart from the burnt oil...
Dec 10, 2025
ZERO
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MR_T's post
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Yes, there is more buildup than I'm used to seeing. I'm not a big-time builder. I know how to take things apart and put them back...
Dec 10, 2025
ZERO
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huskihl's post
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It’s possible that it got hot but that usually doesn’t happen if the saw sounds right and is 4 stroking out of the cut (unless it has a...
Dec 10, 2025
ZERO
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hacskaroly's post
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That I don't know, I generally work on free or project saws and they usually come with issues. Looking at the carbon in the exhaust...
Dec 10, 2025
ZERO
reacted to
jacktheripper's post
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That looks more like crappy oil. Carbon left from unburnt oil.
Dec 10, 2025
ZERO
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MR_T's post
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Is the color from running hot or rich?
Dec 10, 2025
ZERO
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hacskaroly's post
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If you do pop the top and everything looks ok, you might use some SeaFoam and a green scotch bright pad to work the discoloration/carbon...
Dec 10, 2025
ZERO
reacted to
MR_T's post
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Yea, maybe 5 minutes
Dec 10, 2025
ZERO
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farminkarman's post
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Have you run it yet? If not, then it might be worth pulling the jug and making sure there isn't transfer on the cylinder bore.
Dec 10, 2025
ZERO
reacted to
MR_T's post
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I see that now. early scoring marks?
Dec 10, 2025
ZERO
reacted to
farminkarman's post
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I wouldn't be worried about the color. I thought maybe you were worried about the scratch lines on the piston.
Dec 10, 2025
ZERO
reacted to
MR_T's post
in the thread
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yes, first time seeing this on a piston.
Dec 10, 2025
ZERO
reacted to
cuinrearview's post
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I don't understand. Is it the color you're worried about?
Dec 10, 2025
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