Re: Boost bottle vs crankcase volume/velocity
Good luck with the project. It's a 5 piece billet winged head, you will see when you get it. What you need is a 44mm Piston w/ 10mm rod pin, You are getting a 12mm piston. With the 44/10 you can use the lighter 47cc stock crank w/ 10mm pin. The 15mm pumper carb is better than the stock 13mm piston carb, but there is a gas return line from the carb back to the gas tank, that's for the piston port engine. Om my Lucky 7, I put a brake bleeder screw, threaded in into the gas cap, then ran the yellow gas line from the carb to the cap, See photo.
I bought billet Cag cases from Germany, they had so many problems, 6 years later CAM2, offered to fix it for me. When he worked his magic, he left no stone un-turned, The Cag billet cases are Polini Euro style with the reeds above the crank. You know CAM2, he loves to modify stuff, from the whole engine to the 19mm Walbro We chose parts I had in stock, a 10mm rod FC crank, then a 40mm by 10mm piston and bearing, 40mm cyld and built off that, cause light gives more power and rpms.
Last edited by EPR; 2 Weeks Ago at 03:43 PM.