Gas blowing out carb

slomo

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So now, what caused yours to fail? Rubbing action leading to lack of wall thickness or valves way out of spec? Overheats?
 

zakdtv

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Jun 27, 2022
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Million dollar question slomo. My best guess is heat. The oil was thin with gas and I'm guessing the heat from that plus the wear from the guide caused it to give up. The exhaust valve was out of spec and the intake was really loose. Maybe the rocker came loose and bound up a little? Really kind of a mystery. No holes worn into the rods so they weren't as bad as what some people found still working?
 
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