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It is indeed a two stroke, and I see now that I misread your prior post. When you said "Usually you only see roller bearings in the bottom ends of 2 cycle engines", I was thinking that you meant only the big end.
Now I see that you meant both ends of the connecting rod. I believe we are now on the same page. Your description of rollers in a two stroke vs. babbit in a four stroke makes perfect sense. How else would you maintain a hydrodynamic wedge between the bearing and journal in a four stroke?
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Weldangrind
"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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