Hi Ave8or;

I have just converted 2 ryobi's 31cc for a B25. They will not spark when flipped over by hand, I need a starter or drill works too. I find that weird.... two of my other conversions have lots of spark when flipped by hand another one is like these two ryobi's and need a higher rpm. It is a 42cc. and I changed coils from various other weedeaters but the same thing. For a while I thought it was the diameter of the flywheel, but I measured them the other day and they all vary shooting that idea all to hell.

I would like to know why some start by hand and others don't if it is not the coil. Any idea's??


Peter