Hi chris125,
Just out of curiosity, what oil was used and how much work has the saw done?
cheers

Nice photo of the top of the piston, the books I have say misaligned transfer ports for that effect..

Edit: FYI just did a little more research on that the pattern on the top.. is called a "Jante" velocity pattern, named after Alfred Jante in about 1968, looks like an SAE Paper was written on it (Jante, 1968, SAE 680468)

Light holiday reading.... crazy

smile

Last edited by FAST GRASS; 29/12/12 03:22 PM.

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