Hi all. Long time reader, first time poster. Apology if this question has been answered, but I have not found so in my searching.
I'm building a GX390 for a kart, and want to focus on lightening the engine as much as possible, yet still retaining use of the recoil starter (only). Question then becomes, how light of flywheels have been used in built 390's, and the recoil still works? Meaning, there is enough rotating mass to start the engine, and have a reasonable low/stable idle?
I acquired a Raceseng finned S2 "Rev" wheel, but it is very light, and very small diameter. Looks like most of the Arc wheels are at least 4lbs, and larger diameter.
Thanks for the guidance on what has worked for you.
I'm building a GX390 for a kart, and want to focus on lightening the engine as much as possible, yet still retaining use of the recoil starter (only). Question then becomes, how light of flywheels have been used in built 390's, and the recoil still works? Meaning, there is enough rotating mass to start the engine, and have a reasonable low/stable idle?
I acquired a Raceseng finned S2 "Rev" wheel, but it is very light, and very small diameter. Looks like most of the Arc wheels are at least 4lbs, and larger diameter.
Thanks for the guidance on what has worked for you.