Honda Spree and Elite 50 Forums

Every time I read something about derestricting the intake, it always says it is very easy to see what needs to be done. But when I looked I didn't see what needs done. Mabe the guy who had the Spree before me already did it, I don't know. Could someone explain in more detail, or post some pictures?

Take off the intake manifold

notice that one end is square and the other is round

notice the transition between the two WAS NOT built to flow well

use a dremel to smooth this out

leave a rough surface (long explanation upon request)

wash it out and reassemble