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Chainsaw
MS 180 Issues after Complete rebuild
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<blockquote data-quote="Thommo" data-source="post: 6306401" data-attributes="member: 109959"><p>I would say it is caused from running lean. The air fuel mix is still burning when the exhaust port starts opening but there isnt enough fuel in there to fill the whole cylinder so it only leaves carbon on the exhaust side of piston. This is also why pistons melt because there isnt enough fuel and oil getting in there to cool the piston.</p></blockquote><p></p>
[QUOTE="Thommo, post: 6306401, member: 109959"] I would say it is caused from running lean. The air fuel mix is still burning when the exhaust port starts opening but there isnt enough fuel in there to fill the whole cylinder so it only leaves carbon on the exhaust side of piston. This is also why pistons melt because there isnt enough fuel and oil getting in there to cool the piston. [/QUOTE]
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