cracked the can open and there was nothing in there , i used a price of copper pipe and drilled a bunch of holes in it and then stuffed the can with some metal brillow pads , capped it off and used a few cotter pins and then used a copper 90degree bend to point down , quiet as hell now , ill try and post a pic tomorrowHmmm, I opened up the can, nothing in it? How did you go about a silencer, did you make a tube that goes all the way through it?
Thank you, EPR! I am having a blast working on this Mini! Although it is a bit small for my needs! I would like to find, build a pocket bike next! It's just fun to work on the little bikes! Looks like allot of people around here value your input on the bikes, and engines, so I am glad you chimed in!Buzz, you can get a bigger ATV for you new, a 125cc 4 stroke automatic trans for $600 or so. MPR has them, Tsun too and others.
Lol.... I went a little different route, but hey I got my answer it's 40mm... Also I guess the first number on the case, in my case 40-*** etc... is likely the displacement....Get a 1/4" or 6mm drill , stick dull end in the exhaust port till it hits the otherside, mark the drill with a felt pen or... Take it out and measure it.
A 47cc is 40mm, a 49cc is 44mm, 4mm bigger, should be able to tell that way foresure,lol.