Hello again Ben,....Running my stock, factory M90...haven't removed cyl head or piston, so I guess I have 2 Rubber O-rings worth of Friction....Compared to your Flame Lickers Compression-less event, our M90 based engines have basic design free turning High Friction issues....Plz continue your Helpful M94 mods update postings !! ..I'm interested in your "Ringl-less" piston idea & other parasitic frictional losses reduction thoughts...Even if 1 P-ring is required, an improved version would help "coasting" time & the stock engine has many other "improvable" frictional issues without getting away from the Classic antique H&M simplistic cast iron charm.....tom.
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