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Here you go..How about a pic of the "gouge"?
Here you go..How about a pic of the "gouge"?
Yeh, still a problem if it did fire.It's not an AM cylinder, it's a KS. First time I've ever had this problem to this extent. I'm hoping it's the ring or cylinder. The only thing is the gouge above the exhaust port roof. Maybe that's making it so low on compression that it won't fire. I don't subscribe to the theory that 100 psi is enough to fire off a chainsaw. But that's just me
The top 5/8" or so of the cylinder is the critical part of making compression. If there's any disruption there, it could be what's giving you trouble.Here you go..
Not unheard...that little guy? i wouldnt worry about that little guy. seriously that will not cause a noticeable change in compression, certainly not enough to make it not run. looks to me like we are just seeing a reflection on the cylinder wall that people are thinking is rough stuff toward the top yes?