I need help, I'm planning on building my own 100cc or 150cc 2 cylinder gasoline engine. Yeah I know I could just take a DA or 3W and copy it but I want this to be mine. I have access to a machine shop and all the related tooling and plenty of help with the actual work. What I need help with is design. Should I purchase commercially available cylinders or make my own. I plan on grinding my own crankshaft and milling my own crankcase but I need guidance on the diameter of the crank how many bearings? I plan on using a Walbro carb and CH ignition. Do I turn my own pistons what kind of bearings on the connecting rods? You see I have many questions and any help would be great.
Thanks
RT