Honda Spree and Elite 50 Forums

so i have my intake off and i can see how its doesnt transition well from circular to square. what bit shgould i use for my rotary? a grinding type? i need help on this...

i just put a little circlualar stone tool on the end of a drill just try something and if it dont take any metal off try something else or u can use just a standered little file if u have all day

lol yea im thinking i should just use a little grinding wheel nothing too harsh....and im supposed to keep it unpolished and like......not fine....like.....u know what i mean?like.......AH THATS IT!........i gotta keep it rough?

Yea, really smooth gentle turn but leave the walls rough.