Rupert,


I'm no expert at these conversions but I have recently converted a 25cc Homie. I did not ever run it with the magneto as I converted it to a CDI from the start. Using the standard carb and muffler on the motor I was able to get 6200 rpms. What you will probably need to do is get a larger bore carb and open up the muffler to lessen the restiction. I did both of these things along with using a 16X8 APC prop and achieved 8100 rpms. I am contemplating going a little further with "hopping" it up a a little more by increasing the compression and changing the intake and exhaust timing but we'll see. I may just stop where I'm at and call it good enough for what I'm gonna use it for.

Scott