Engine specs

capriottikidd

New Member
i need some engine specs like:
-Bore in mm
-Stroke in mm
-exhaust port diameter
-exhaust port length
-exhaust open period (degree)
-Main transfer open period (degree)

i need these dimensions because im building custom expansion chambers for these motors, i don't have a set price yet because im waiting for a quote on sheet metal, but will have a ball park price soon... thanks, the sooner i get these specs the faster i fabricate these pipes. thanks
 
For which engine?
48cc? 55cc? 60cc? 66(80)cc?
engine-ID.jpg
 
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